1 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3 %% Purpose: wxWindow documentation
4 %% Author: wxWidgets Team
8 %% Copyright: (c) wxWidgets Team
9 %% License: wxWindows license
10 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
12 \section{\class{wxWindow
}}\label{wxwindow
}
14 wxWindow is the base class for all windows and represents any visible object on
15 screen. All controls, top level windows and so on are windows. Sizers and
16 device contexts are not, however, as they don't appear on screen themselves.
18 Please note that all children of the window will be deleted automatically by
19 the destructor before the window itself is deleted which means that you don't
20 have to worry about deleting them manually. Please see the
\helpref{window
21 deletion overview
}{windowdeletionoverview
} for more information.
23 Also note that in this, and many others, wxWidgets classes some
24 \texttt{GetXXX()
} methods may be overloaded (as, for example,
25 \helpref{GetSize
}{wxwindowgetsize
} or
26 \helpref{GetClientSize
}{wxwindowgetclientsize
}). In this case, the overloads
27 are non-virtual because having multiple virtual functions with the same name
28 results in a virtual function name hiding at the derived class level (in
29 English, this means that the derived class has to override all overloaded
30 variants if it overrides any of them). To allow overriding them in the derived
31 class, wxWidgets uses a unique protected virtual
\texttt{DoGetXXX()
} method
32 and all
\texttt{GetXXX()
} ones are forwarded to it, so overriding the former
33 changes the behaviour of the latter.
35 \wxheading{Derived from
}
37 \helpref{wxEvtHandler
}{wxevthandler
}\\
38 \helpref{wxObject
}{wxobject
}
40 \wxheading{Include files
}
44 \wxheading{Window styles
}
46 The following styles can apply to all windows, although they will not always make sense for a particular
47 window class or on all platforms.
50 \begin{twocollist
}\itemsep=
0pt
51 \twocolitem{\windowstyle{wxSIMPLE
\_BORDER}}{Displays a thin border around the window. wxBORDER is the old name
53 \twocolitem{\windowstyle{wxDOUBLE
\_BORDER}}{Displays a double border. Windows and Mac only.
}
54 \twocolitem{\windowstyle{wxSUNKEN
\_BORDER}}{Displays a sunken border.
}
55 \twocolitem{\windowstyle{wxRAISED
\_BORDER}}{Displays a raised border.
}
56 \twocolitem{\windowstyle{wxSTATIC
\_BORDER}}{Displays a border suitable for a static control. Windows only.
}
57 \twocolitem{\windowstyle{wxNO
\_BORDER}}{Displays no border, overriding the default border style for the window.
}
58 \twocolitem{\windowstyle{wxTRANSPARENT
\_WINDOW}}{The window is transparent, that is, it will not receive paint
59 events. Windows only.
}
60 \twocolitem{\windowstyle{wxTAB
\_TRAVERSAL}}{Use this to enable tab traversal for non-dialog windows.
}
61 \twocolitem{\windowstyle{wxWANTS
\_CHARS}}{Use this to indicate that
62 the window wants to get all char/key events for all keys - even for
63 keys like TAB or ENTER which are usually used for dialog navigation
64 and which wouldn't be generated without this style. If you need to
65 use this style in order to get the arrows or etc., but would still like to have
66 normal keyboard navigation take place, you should create and send a
67 wxNavigationKeyEvent in response to the key events for Tab and
69 \twocolitem{\windowstyle{wxNO
\_FULL\_REPAINT\_ON\_RESIZE}}{On Windows, this style used to disable repainting
70 the window completely when its size is changed. Since this behaviour is now the default, the style is now obsolete
71 and no longer has an effect.
}
72 \twocolitem{\windowstyle{wxVSCROLL
}}{Use this style to enable a vertical scrollbar.
}
73 \twocolitem{\windowstyle{wxHSCROLL
}}{Use this style to enable a horizontal scrollbar.
}
74 \twocolitem{\windowstyle{wxALWAYS
\_SHOW\_SB}}{If a window has scrollbars,
75 disable them instead of hiding them when they are not needed (i.e. when the
76 size of the window is big enough to not require the scrollbars to navigate it).
77 This style is currently implemented for wxMSW, wxGTK and wxUniversal and does
78 nothing on the other platforms.
}
79 \twocolitem{\windowstyle{wxCLIP
\_CHILDREN}}{Use this style to eliminate flicker caused by the background being
80 repainted, then children being painted over them. Windows only.
}
81 \twocolitem{\windowstyle{wxFULL
\_REPAINT\_ON\_RESIZE}}{Use this style to force
82 a complete redraw of the window whenever it is resized instead of redrawing
83 just the part of the window affected by resizing. Note that this was the
84 behaviour by default before
2.5.1 release and that if you experience redraw
85 problems with code which previously used to work you may want to try this.
86 Currently this style applies on GTK+
2 and Windows only, and full repainting is always
87 done on other platforms.
}
90 See also
\helpref{window styles overview
}{windowstyles
}.
92 \wxheading{Extra window styles
}
94 The following are extra styles, set using
\helpref{wxWindow::SetExtraStyle
}{wxwindowsetextrastyle
}.
97 \begin{twocollist
}\itemsep=
0pt
98 \twocolitem{\windowstyle{wxWS
\_EX\_VALIDATE\_RECURSIVELY}}{By default, Validate/TransferDataTo/FromWindow()
99 only work on direct children of the window (compatible behaviour). Set this flag to make them recursively
100 descend into all subwindows.
}
101 \twocolitem{\windowstyle{wxWS
\_EX\_BLOCK\_EVENTS}}{wxCommandEvents and the objects of the derived classes are forwarded to the
102 parent window and so on recursively by default. Using this flag for the
103 given window allows to block this propagation at this window, i.e. prevent
104 the events from being propagated further upwards. Dialogs have this
106 \twocolitem{\windowstyle{wxWS
\_EX\_TRANSIENT}}{Don't use this window as an implicit parent for the other windows: this must
107 be used with transient windows as otherwise there is the risk of creating a
108 dialog/frame with this window as a parent which would lead to a crash if the
109 parent is destroyed before the child.
}
110 \twocolitem{\windowstyle{wxWS
\_EX\_PROCESS\_IDLE}}{This window should always process idle events, even
111 if the mode set by
\helpref{wxIdleEvent::SetMode
}{wxidleeventsetmode
} is wxIDLE
\_PROCESS\_SPECIFIED.
}
112 \twocolitem{\windowstyle{wxWS
\_EX\_PROCESS\_UI\_UPDATES}}{This window should always process UI update events,
113 even if the mode set by
\helpref{wxUpdateUIEvent::SetMode
}{wxupdateuieventsetmode
} is wxUPDATE
\_UI\_PROCESS\_SPECIFIED.
}
118 \helpref{Event handling overview
}{eventhandlingoverview
}
120 \latexignore{\rtfignore{\wxheading{Members
}}}
123 \membersection{wxWindow::wxWindow
}\label{wxwindowctor
}
125 \func{}{wxWindow
}{\void}
129 \func{}{wxWindow
}{\param{wxWindow*
}{ parent
},
\param{wxWindowID
}{id
},
130 \param{const wxPoint\&
}{pos = wxDefaultPosition
},
131 \param{const wxSize\&
}{size = wxDefaultSize
},
132 \param{long
}{style =
0},
133 \param{const wxString\&
}{name = wxPanelNameStr
}}
135 Constructs a window, which can be a child of a frame, dialog or any other non-control window.
137 \wxheading{Parameters
}
139 \docparam{parent
}{Pointer to a parent window.
}
141 \docparam{id
}{Window identifier. If wxID
\_ANY, will automatically create an identifier.
}
143 \docparam{pos
}{Window position. wxDefaultPosition indicates that wxWidgets
144 should generate a default position for the window. If using the wxWindow class directly, supply
147 \docparam{size
}{Window size. wxDefaultSize indicates that wxWidgets
148 should generate a default size for the window. If no suitable size can be found, the
149 window will be sized to
20x20 pixels so that the window is visible but obviously not
152 \docparam{style
}{Window style. For generic window styles, please see
\helpref{wxWindow
}{wxwindow
}.
}
154 \docparam{name
}{Window name.
}
157 \membersection{wxWindow::
\destruct{wxWindow
}}\label{wxwindowdtor
}
159 \func{}{\destruct{wxWindow
}}{\void}
161 Destructor. Deletes all subwindows, then deletes itself. Instead of using
162 the
{\bf delete
} operator explicitly, you should normally
163 use
\helpref{wxWindow::Destroy
}{wxwindowdestroy
} so that wxWidgets
164 can delete a window only when it is safe to do so, in idle time.
168 \helpref{Window deletion overview
}{windowdeletionoverview
},
\rtfsp
169 \helpref{wxWindow::Destroy
}{wxwindowdestroy
},
\rtfsp
170 \helpref{wxCloseEvent
}{wxcloseevent
}
173 \membersection{wxWindow::AddChild
}\label{wxwindowaddchild
}
175 \func{virtual void
}{AddChild
}{\param{wxWindow*
}{child
}}
177 Adds a child window. This is called automatically by window creation
178 functions so should not be required by the application programmer.
180 Notice that this function is mostly internal to wxWidgets and shouldn't be
181 called by the user code.
183 \wxheading{Parameters
}
185 \docparam{child
}{Child window to add.
}
188 \membersection{wxWindow::CacheBestSize
}\label{wxwindowcachebestsize
}
190 \constfunc{void
}{CacheBestSize
}{\param{const wxSize\&
}{size
}}
192 Sets the cached best size value.
195 \membersection{wxWindow::CaptureMouse
}\label{wxwindowcapturemouse
}
197 \func{virtual void
}{CaptureMouse
}{\void}
199 Directs all mouse input to this window. Call
\helpref{wxWindow::ReleaseMouse
}{wxwindowreleasemouse
} to
202 Note that wxWidgets maintains the stack of windows having captured the mouse
203 and when the mouse is released the capture returns to the window which had had
204 captured it previously and it is only really released if there were no previous
205 window. In particular, this means that you must release the mouse as many times
206 as you capture it, unless the window receives
207 the
\helpref{wxMouseCaptureLostEvent
}{wxmousecapturelostevent
} event.
209 Any application which captures the mouse in the beginning of some operation
210 {\em must
} handle
\helpref{wxMouseCaptureLostEvent
}{wxmousecapturelostevent
}
211 and cancel this operation when it receives the event. The event handler must
216 \helpref{wxWindow::ReleaseMouse
}{wxwindowreleasemouse
}
217 \helpref{wxMouseCaptureLostEvent
}{wxmousecapturelostevent
}
220 \membersection{wxWindow::Center
}\label{wxwindowcenter
}
222 \func{void
}{Center
}{\param{int
}{ direction
}}
224 A synonym for
\helpref{Centre
}{wxwindowcentre
}.
227 \membersection{wxWindow::CenterOnParent
}\label{wxwindowcenteronparent
}
229 \func{void
}{CenterOnParent
}{\param{int
}{ direction
}}
231 A synonym for
\helpref{CentreOnParent
}{wxwindowcentreonparent
}.
234 \membersection{wxWindow::CenterOnScreen
}\label{wxwindowcenteronscreen
}
236 \func{void
}{CenterOnScreen
}{\param{int
}{ direction
}}
238 A synonym for
\helpref{CentreOnScreen
}{wxwindowcentreonscreen
}.
241 \membersection{wxWindow::Centre
}\label{wxwindowcentre
}
243 \func{void
}{Centre
}{\param{int
}{ direction = wxBOTH
}}
247 \wxheading{Parameters
}
249 \docparam{direction
}{Specifies the direction for the centering. May be
{\tt wxHORIZONTAL
},
{\tt wxVERTICAL
}\rtfsp
250 or
{\tt wxBOTH
}. It may also include
{\tt wxCENTRE
\_ON\_SCREEN} flag
251 if you want to center the window on the entire screen and not on its
254 The flag
{\tt wxCENTRE
\_FRAME} is obsolete and should not be used any longer
259 If the window is a top level one (i.e. doesn't have a parent), it will be
260 centered relative to the screen anyhow.
264 \helpref{wxWindow::Center
}{wxwindowcenter
}
267 \membersection{wxWindow::CentreOnParent
}\label{wxwindowcentreonparent
}
269 \func{void
}{CentreOnParent
}{\param{int
}{ direction = wxBOTH
}}
271 Centres the window on its parent. This is a more readable synonym for
272 \helpref{Centre
}{wxwindowcentre
}.
274 \wxheading{Parameters
}
276 \docparam{direction
}{Specifies the direction for the centering. May be
{\tt wxHORIZONTAL
},
{\tt wxVERTICAL
}\rtfsp
281 This methods provides for a way to center top level windows over their
282 parents instead of the entire screen. If there is no parent or if the
283 window is not a top level window, then behaviour is the same as
284 \helpref{wxWindow::Centre
}{wxwindowcentre
}.
288 \helpref{wxWindow::CentreOnScreen
}{wxwindowcenteronscreen
}
291 \membersection{wxWindow::CentreOnScreen
}\label{wxwindowcentreonscreen
}
293 \func{void
}{CentreOnScreen
}{\param{int
}{ direction = wxBOTH
}}
295 Centres the window on screen. This only works for top level windows -
296 otherwise, the window will still be centered on its parent.
298 \wxheading{Parameters
}
300 \docparam{direction
}{Specifies the direction for the centering. May be
{\tt wxHORIZONTAL
},
{\tt wxVERTICAL
}\rtfsp
305 \helpref{wxWindow::CentreOnParent
}{wxwindowcenteronparent
}
308 \membersection{wxWindow::ClearBackground
}\label{wxwindowclearbackground
}
310 \func{void
}{ClearBackground
}{\void}
312 Clears the window by filling it with the current background colour. Does not
313 cause an erase background event to be generated.
316 \membersection{wxWindow::ClientToScreen
}\label{wxwindowclienttoscreen
}
318 \constfunc{virtual void
}{ClientToScreen
}{\param{int*
}{x
},
\param{int*
}{y
}}
320 \perlnote{In wxPerl this method returns a
2-element list instead of
321 modifying its parameters.
}
323 \constfunc{virtual wxPoint
}{ClientToScreen
}{\param{const wxPoint\&
}{ pt
}}
325 Converts to screen coordinates from coordinates relative to this window.
327 \docparam{x
}{A pointer to a integer value for the x coordinate. Pass the client coordinate in, and
328 a screen coordinate will be passed out.
}
330 \docparam{y
}{A pointer to a integer value for the y coordinate. Pass the client coordinate in, and
331 a screen coordinate will be passed out.
}
333 \docparam{pt
}{The client position for the second form of the function.
}
335 \pythonnote{In place of a single overloaded method name, wxPython
336 implements the following methods:
\par
337 \indented{2cm
}{\begin{twocollist
}
338 \twocolitem{{\bf ClientToScreen(point)
}}{Accepts and returns a wxPoint
}
339 \twocolitem{{\bf ClientToScreenXY(x, y)
}}{Returns a
2-tuple, (x, y)
}
344 \membersection{wxWindow::Close
}\label{wxwindowclose
}
346 \func{bool
}{Close
}{\param{bool
}{ force =
{\tt false
}}}
348 This function simply generates a
\helpref{wxCloseEvent
}{wxcloseevent
} whose
349 handler usually tries to close the window. It doesn't close the window itself,
352 \wxheading{Parameters
}
354 \docparam{force
}{{\tt false
} if the window's close handler should be able to veto the destruction
355 of this window,
{\tt true
} if it cannot.
}
359 Close calls the
\helpref{close handler
}{wxcloseevent
} for the window, providing
360 an opportunity for the window to choose whether to destroy the window.
361 Usually it is only used with the top level windows (wxFrame and wxDialog
362 classes) as the others are not supposed to have any special OnClose() logic.
364 The close handler should check whether the window is being deleted forcibly,
365 using
\helpref{wxCloseEvent::CanVeto
}{wxcloseeventcanveto
}, in which case it
366 should destroy the window using
\helpref{wxWindow::Destroy
}{wxwindowdestroy
}.
368 {\it Note
} that calling Close does not guarantee that the window will be
369 destroyed; but it provides a way to simulate a manual close of a window, which
370 may or may not be implemented by destroying the window. The default
371 implementation of wxDialog::OnCloseWindow does not necessarily delete the
372 dialog, since it will simply simulate an wxID
\_CANCEL event which is handled by
373 the appropriate button event handler and may do anything at all.
375 To guarantee that the window will be destroyed, call
376 \helpref{wxWindow::Destroy
}{wxwindowdestroy
} instead
380 \helpref{Window deletion overview
}{windowdeletionoverview
},
\rtfsp
381 \helpref{wxWindow::Destroy
}{wxwindowdestroy
},
\rtfsp
382 \helpref{wxCloseEvent
}{wxcloseevent
}
385 \membersection{wxWindow::ConvertDialogToPixels
}\label{wxwindowconvertdialogtopixels
}
387 \func{wxPoint
}{ConvertDialogToPixels
}{\param{const wxPoint\&
}{ pt
}}
389 \func{wxSize
}{ConvertDialogToPixels
}{\param{const wxSize\&
}{ sz
}}
391 Converts a point or size from dialog units to pixels.
393 For the x dimension, the dialog units are multiplied by the average character width
394 and then divided by
4.
396 For the y dimension, the dialog units are multiplied by the average character height
397 and then divided by
8.
401 Dialog units are used for maintaining a dialog's proportions even if the font changes.
403 You can also use these functions programmatically. A convenience macro is defined:
407 #define wxDLG_UNIT(parent, pt) parent->ConvertDialogToPixels(pt)
413 \helpref{wxWindow::ConvertPixelsToDialog
}{wxwindowconvertpixelstodialog
}
415 \pythonnote{In place of a single overloaded method name, wxPython
416 implements the following methods:
\par
417 \indented{2cm
}{\begin{twocollist
}
418 \twocolitem{{\bf ConvertDialogPointToPixels(point)
}}{Accepts and returns a wxPoint
}
419 \twocolitem{{\bf ConvertDialogSizeToPixels(size)
}}{Accepts and returns a wxSize
}
422 Additionally, the following helper functions are defined:
\par
423 \indented{2cm
}{\begin{twocollist
}
424 \twocolitem{{\bf wxDLG
\_PNT(win, point)
}}{Converts a wxPoint from dialog
426 \twocolitem{{\bf wxDLG
\_SZE(win, size)
}}{Converts a wxSize from dialog
433 \membersection{wxWindow::ConvertPixelsToDialog
}\label{wxwindowconvertpixelstodialog
}
435 \func{wxPoint
}{ConvertPixelsToDialog
}{\param{const wxPoint\&
}{ pt
}}
437 \func{wxSize
}{ConvertPixelsToDialog
}{\param{const wxSize\&
}{ sz
}}
439 Converts a point or size from pixels to dialog units.
441 For the x dimension, the pixels are multiplied by
4 and then divided by the average
444 For the y dimension, the pixels are multiplied by
8 and then divided by the average
449 Dialog units are used for maintaining a dialog's proportions even if the font changes.
453 \helpref{wxWindow::ConvertDialogToPixels
}{wxwindowconvertdialogtopixels
}
455 \pythonnote{In place of a single overloaded method name, wxPython implements the following methods:
\par
456 \indented{2cm
}{\begin{twocollist
}
457 \twocolitem{{\bf ConvertDialogPointToPixels(point)
}}{Accepts and returns a wxPoint
}
458 \twocolitem{{\bf ConvertDialogSizeToPixels(size)
}}{Accepts and returns a wxSize
}
463 \membersection{wxWindow::Destroy
}\label{wxwindowdestroy
}
465 \func{virtual bool
}{Destroy
}{\void}
467 Destroys the window safely. Use this function instead of the delete operator, since
468 different window classes can be destroyed differently. Frames and dialogs
469 are not destroyed immediately when this function is called -- they are added
470 to a list of windows to be deleted on idle time, when all the window's events
471 have been processed. This prevents problems with events being sent to non-existent
474 \wxheading{Return value
}
476 {\tt true
} if the window has either been successfully deleted, or it has been added
477 to the list of windows pending real deletion.
480 \membersection{wxWindow::DestroyChildren
}\label{wxwindowdestroychildren
}
482 \func{virtual void
}{DestroyChildren
}{\void}
484 Destroys all children of a window. Called automatically by the destructor.
487 \membersection{wxWindow::Disable
}\label{wxwindowdisable
}
489 \func{bool
}{Disable
}{\void}
491 Disables the window, same as
\helpref{Enable(
{\tt false
})
}{wxwindowenable
}.
493 \wxheading{Return value
}
495 Returns
{\tt true
} if the window has been disabled,
{\tt false
} if it had been
496 already disabled before the call to this function.
499 \membersection{wxWindow::DoGetBestSize
}\label{wxwindowdogetbestsize
}
501 \constfunc{virtual wxSize
}{DoGetBestSize
}{\void}
503 Gets the size which best suits the window: for a control, it would be
504 the minimal size which doesn't truncate the control, for a panel - the
505 same size as it would have after a call to
\helpref{Fit()
}{wxwindowfit
}.
508 \membersection{wxWindow::DoUpdateWindowUI
}\label{wxwindowdoupdatewindowui
}
510 \func{virtual void
}{DoUpdateWindowUI
}{\param{wxUpdateUIEvent\&
}{ event
}}
512 Does the window-specific updating after processing the update event.
513 This function is called by
\helpref{wxWindow::UpdateWindowUI
}{wxwindowupdatewindowui
}
514 in order to check return values in the
\helpref{wxUpdateUIEvent
}{wxupdateuievent
} and
515 act appropriately. For example, to allow frame and dialog title updating, wxWidgets
516 implements this function as follows:
519 // do the window-specific processing after processing the update event
520 void wxTopLevelWindowBase::DoUpdateWindowUI(wxUpdateUIEvent& event)
522 if ( event.GetSetEnabled() )
523 Enable(event.GetEnabled());
525 if ( event.GetSetText() )
527 if ( event.GetText() != GetTitle() )
528 SetTitle(event.GetText());
535 \membersection{wxWindow::DragAcceptFiles
}\label{wxwindowdragacceptfiles
}
537 \func{virtual void
}{DragAcceptFiles
}{\param{bool
}{ accept
}}
539 Enables or disables eligibility for drop file events (OnDropFiles).
541 \wxheading{Parameters
}
543 \docparam{accept
}{If
{\tt true
}, the window is eligible for drop file events. If
{\tt false
}, the window
544 will not accept drop file events.
}
551 \membersection{wxWindow::Enable
}\label{wxwindowenable
}
553 \func{virtual bool
}{Enable
}{\param{bool
}{ enable =
{\tt true
}}}
555 Enable or disable the window for user input. Note that when a parent window is
556 disabled, all of its children are disabled as well and they are reenabled again
559 \wxheading{Parameters
}
561 \docparam{enable
}{If
{\tt true
}, enables the window for input. If
{\tt false
}, disables the window.
}
563 \wxheading{Return value
}
565 Returns
{\tt true
} if the window has been enabled or disabled,
{\tt false
} if
566 nothing was done, i.e. if the window had already been in the specified state.
570 \helpref{wxWindow::IsEnabled
}{wxwindowisenabled
},
\rtfsp
571 \helpref{wxWindow::Disable
}{wxwindowdisable
},
\rtfsp
572 \helpref{wxRadioBox::Enable
}{wxradioboxenable
}
575 \membersection{wxWindow::FindFocus
}\label{wxwindowfindfocus
}
577 \func{static wxWindow*
}{FindFocus
}{\void}
579 Finds the window or control which currently has the keyboard focus.
583 Note that this is a static function, so it can be called without needing a wxWindow pointer.
587 \helpref{wxWindow::SetFocus
}{wxwindowsetfocus
}
591 \membersection{wxWindow::FindWindow
}\label{wxwindowfindwindow
}
593 \constfunc{wxWindow*
}{FindWindow
}{\param{long
}{ id
}}
595 Find a child of this window, by identifier.
597 \constfunc{wxWindow*
}{FindWindow
}{\param{const wxString\&
}{ name
}}
599 Find a child of this window, by name.
601 \pythonnote{In place of a single overloaded method name, wxPython
602 implements the following methods:
\par
603 \indented{2cm
}{\begin{twocollist
}
604 \twocolitem{{\bf FindWindowById(id)
}}{Accepts an integer
}
605 \twocolitem{{\bf FindWindowByName(name)
}}{Accepts a string
}
610 \membersection{wxWindow::FindWindowById
}\label{wxwindowfindwindowbyid
}
612 \func{static wxWindow*
}{FindWindowById
}{\param{long
}{ id
},
\param{wxWindow*
}{ parent = NULL
}}
614 Find the first window with the given
{\it id
}.
616 If
{\it parent
} is NULL, the search will start from all top-level
617 frames and dialog boxes; if non-NULL, the search will be limited to the given window hierarchy.
618 The search is recursive in both cases.
622 \helpref{FindWindow
}{wxwindowfindwindow
}
625 \membersection{wxWindow::FindWindowByLabel
}\label{wxwindowfindwindowbylabel
}
627 \func{static wxWindow*
}{FindWindowByLabel
}{\param{const wxString\&
}{ label
},
\param{wxWindow*
}{ parent = NULL
}}
629 Find a window by its label. Depending on the type of window, the label may be a window title
630 or panel item label. If
{\it parent
} is NULL, the search will start from all top-level
631 frames and dialog boxes; if non-NULL, the search will be limited to the given window hierarchy.
632 The search is recursive in both cases.
636 \helpref{FindWindow
}{wxwindowfindwindow
}
639 \membersection{wxWindow::FindWindowByName
}\label{wxwindowfindwindowbyname
}
641 \func{static wxWindow*
}{FindWindowByName
}{\param{const wxString\&
}{ name
},
\param{wxWindow*
}{ parent = NULL
}}
643 Find a window by its name (as given in a window constructor or
{\bf Create
} function call).
644 If
{\it parent
} is NULL, the search will start from all top-level
645 frames and dialog boxes; if non-NULL, the search will be limited to the given window hierarchy.
646 The search is recursive in both cases.
648 If no window with such name is found,
649 \helpref{FindWindowByLabel
}{wxwindowfindwindowbylabel
} is called.
653 \helpref{FindWindow
}{wxwindowfindwindow
}
656 \membersection{wxWindow::Fit
}\label{wxwindowfit
}
658 \func{virtual void
}{Fit
}{\void}
660 Sizes the window so that it fits around its subwindows. This function won't do
661 anything if there are no subwindows and will only really work correctly if the
662 sizers are used for the subwindows layout. Also, if the window has exactly one
663 subwindow it is better (faster and the result is more precise as Fit adds some
664 margin to account for fuzziness of its calculations) to call
667 window->SetClientSize(child->GetSize());
670 instead of calling Fit.
673 \membersection{wxWindow::FitInside
}\label{wxwindowfitinside
}
675 \func{virtual void
}{FitInside
}{\void}
677 Similar to
\helpref{Fit
}{wxwindowfit
}, but sizes the interior (virtual) size
678 of a window. Mainly useful with scrolled windows to reset scrollbars after
679 sizing changes that do not trigger a size event, and/or scrolled windows without
680 an interior sizer. This function similarly won't do anything if there are no
684 \membersection{wxWindow::Freeze
}\label{wxwindowfreeze
}
686 \func{virtual void
}{Freeze
}{\void}
688 Freezes the window or, in other words, prevents any updates from taking place
689 on screen, the window is not redrawn at all.
\helpref{Thaw
}{wxwindowthaw
} must
690 be called to reenable window redrawing. Calls to these two functions may be
693 This method is useful for visual appearance optimization (for example, it
694 is a good idea to use it before doing many large text insertions in a row into
695 a wxTextCtrl under wxGTK) but is not implemented on all platforms nor for all
696 controls so it is mostly just a hint to wxWidgets and not a mandatory
701 \helpref{wxWindowUpdateLocker
}{wxwindowupdatelocker
}
704 \membersection{wxWindow::GetAcceleratorTable
}\label{wxwindowgetacceleratortable
}
706 \constfunc{wxAcceleratorTable*
}{GetAcceleratorTable
}{\void}
708 Gets the accelerator table for this window. See
\helpref{wxAcceleratorTable
}{wxacceleratortable
}.
711 \membersection{wxWindow::GetAccessible
}\label{wxwindowgetaccessible
}
713 \func{wxAccessible*
}{GetAccessible
}{\void}
715 Returns the accessible object for this window, if any.
717 See also
\helpref{wxAccessible
}{wxaccessible
}.
720 \membersection{wxWindow::GetAdjustedBestSize
}\label{wxwindowgetadjustedbestsize
}
722 \constfunc{wxSize
}{GetAdjustedBestSize
}{\void}
724 This method is similar to
\helpref{GetBestSize
}{wxwindowgetbestsize
}, except
725 in one thing. GetBestSize should return the minimum untruncated size of the
726 window, while this method will return the largest of BestSize and any user
727 specified minimum size. ie. it is the minimum size the window should currently
728 be drawn at, not the minimal size it can possibly tolerate.
731 \membersection{wxWindow::GetBackgroundColour
}\label{wxwindowgetbackgroundcolour
}
733 \constfunc{virtual wxColour
}{GetBackgroundColour
}{\void}
735 Returns the background colour of the window.
739 \helpref{wxWindow::SetBackgroundColour
}{wxwindowsetbackgroundcolour
},
\rtfsp
740 \helpref{wxWindow::SetForegroundColour
}{wxwindowsetforegroundcolour
},
\rtfsp
741 \helpref{wxWindow::GetForegroundColour
}{wxwindowgetforegroundcolour
}
743 \membersection{wxWindow::GetBackgroundStyle
}\label{wxwindowgetbackgroundstyle
}
745 \constfunc{virtual wxBackgroundStyle
}{GetBackgroundStyle
}{\void}
747 Returns the background style of the window. The background style indicates
748 whether background colour should be determined by the system (wxBG
\_STYLE\_SYSTEM),
749 be set to a specific colour (wxBG
\_STYLE\_COLOUR), or should be left to the
750 application to implement (wxBG
\_STYLE\_CUSTOM).
752 On GTK+, use of wxBG
\_STYLE\_CUSTOM allows the flicker-free drawing of a custom
753 background, such as a tiled bitmap. Currently the style has no effect on other platforms.
757 \helpref{wxWindow::SetBackgroundColour
}{wxwindowsetbackgroundcolour
},
\rtfsp
758 \helpref{wxWindow::GetForegroundColour
}{wxwindowgetforegroundcolour
},
\rtfsp
759 \helpref{wxWindow::SetBackgroundStyle
}{wxwindowsetbackgroundstyle
}
761 \membersection{wxWindow::GetBestFittingSize
}\label{wxwindowgetbestfittingsize
}
763 \constfunc{wxSize
}{GetBestFittingSize
}{\void}
765 Merges the window's best size into the min size and returns the result.
769 \helpref{wxWindow::GetBestSize
}{wxwindowgetbestsize
},
\rtfsp
770 \helpref{wxWindow::SetBestFittingSize
}{wxwindowsetbestfittingsize
}
773 \membersection{wxWindow::GetBestSize
}\label{wxwindowgetbestsize
}
775 \constfunc{wxSize
}{GetBestSize
}{\void}
777 This functions returns the best acceptable minimal size for the window. For
778 example, for a static control, it will be the minimal size such that the
779 control label is not truncated. For windows containing subwindows (typically
780 \helpref{wxPanel
}{wxpanel
}), the size returned by this function will be the
781 same as the size the window would have had after calling
782 \helpref{Fit
}{wxwindowfit
}.
785 \membersection{wxWindow::GetCapture
}\label{wxwindowgetcapture
}
787 \func{static wxWindow *
}{GetCapture
}{\void}
789 Returns the currently captured window.
793 \helpref{wxWindow::HasCapture
}{wxwindowhascapture
},
794 \helpref{wxWindow::CaptureMouse
}{wxwindowcapturemouse
},
795 \helpref{wxWindow::ReleaseMouse
}{wxwindowreleasemouse
},
796 \helpref{wxMouseCaptureLostEvent
}{wxmousecapturelostevent
}
797 \helpref{wxMouseCaptureChangedEvent
}{wxmousecapturechangedevent
}
800 \membersection{wxWindow::GetCaret
}\label{wxwindowgetcaret
}
802 \constfunc{wxCaret *
}{GetCaret
}{\void}
804 Returns the
\helpref{caret
}{wxcaret
} associated with the window.
807 \membersection{wxWindow::GetCharHeight
}\label{wxwindowgetcharheight
}
809 \constfunc{virtual int
}{GetCharHeight
}{\void}
811 Returns the character height for this window.
814 \membersection{wxWindow::GetCharWidth
}\label{wxwindowgetcharwidth
}
816 \constfunc{virtual int
}{GetCharWidth
}{\void}
818 Returns the average character width for this window.
821 \membersection{wxWindow::GetChildren
}\label{wxwindowgetchildren
}
823 \func{wxWindowList\&
}{GetChildren
}{\void}
825 \constfunc{const wxWindowList\&
}{GetChildren
}{\void}
827 Returns a reference to the list of the window's children.
\texttt{wxWindowList
}
828 is a type-safe
\helpref{wxList
}{wxlist
}-like class whose elements are of type
832 \membersection{wxWindow::GetClassDefaultAttributes
}\label{wxwindowgetclassdefaultattributes
}
834 \func{static wxVisualAttributes
}{GetClassDefaultAttributes
}{\param{wxWindowVariant
}{ variant =
\texttt{wxWINDOW
\_VARIANT\_NORMAL}}}
836 Returns the default font and colours which are used by the control. This is
837 useful if you want to use the same font or colour in your own control as in a
838 standard control -- which is a much better idea than hard coding specific
839 colours or fonts which might look completely out of place on the users
840 system, especially if it uses themes.
842 The
\arg{variant
} parameter is only relevant under Mac currently and is
843 ignore under other platforms. Under Mac, it will change the size of the
844 returned font. See
\helpref{wxWindow::SetWindowVariant
}{wxwindowsetwindowvariant
}
847 This static method is ``overridden'' in many derived classes and so calling,
848 for example,
\helpref{wxButton
}{wxbutton
}::GetClassDefaultAttributes() will typically
849 return the values appropriate for a button which will be normally different
850 from those returned by, say,
\helpref{wxListCtrl
}{wxlistctrl
}::GetClassDefaultAttributes().
852 The
\texttt{wxVisualAttributes
} structure has at least the fields
853 \texttt{font
},
\texttt{colFg
} and
\texttt{colBg
}. All of them may be invalid
854 if it was not possible to determine the default control appearance or,
855 especially for the background colour, if the field doesn't make sense as is
856 the case for
\texttt{colBg
} for the controls with themed background.
860 \helpref{InheritAttributes
}{wxwindowinheritattributes
}
863 \membersection{wxWindow::GetClientSize
}\label{wxwindowgetclientsize
}
865 \constfunc{void
}{GetClientSize
}{\param{int*
}{width
},
\param{int*
}{height
}}
867 \perlnote{In wxPerl this method takes no parameter and returns
868 a
2-element list
{\tt (width, height)
}.
}
870 \constfunc{wxSize
}{GetClientSize
}{\void}
872 This gets the size of the window `client area' in pixels.
873 The client area is the area which may be drawn on by the programmer,
874 excluding title bar, border, scrollbars, etc.
876 \wxheading{Parameters
}
878 \docparam{width
}{Receives the client width in pixels.
}
880 \docparam{height
}{Receives the client height in pixels.
}
882 \pythonnote{In place of a single overloaded method name, wxPython
883 implements the following methods:
\par
884 \indented{2cm
}{\begin{twocollist
}
885 \twocolitem{{\bf GetClientSizeTuple()
}}{Returns a
2-tuple of (width, height)
}
886 \twocolitem{{\bf GetClientSize()
}}{Returns a wxSize object
}
892 \helpref{GetSize
}{wxwindowgetsize
},
\rtfsp
893 \helpref{GetVirtualSize
}{wxwindowgetvirtualsize
}
897 \membersection{wxWindow::GetConstraints
}\label{wxwindowgetconstraints
}
899 \constfunc{wxLayoutConstraints*
}{GetConstraints
}{\void}
901 Returns a pointer to the window's layout constraints, or NULL if there are none.
904 \membersection{wxWindow::GetContainingSizer
}\label{wxwindowgetcontainingsizer
}
906 \constfunc{const wxSizer *
}{GetContainingSizer
}{\void}
908 Return the sizer that this window is a member of, if any, otherwise
912 \membersection{wxWindow::GetCursor
}\label{wxwindowgetcursor
}
914 \constfunc{const wxCursor\&
}{GetCursor
}{\void}
916 Return the cursor associated with this window.
920 \helpref{wxWindow::SetCursor
}{wxwindowsetcursor
}
923 \membersection{wxWindow::GetDefaultAttributes
}\label{wxwindowgetdefaultattributes
}
925 \constfunc{virtual wxVisualAttributes
}{GetDefaultAttributes
}{\void}
927 Currently this is the same as calling
928 \helpref{GetClassDefaultAttributes
}{wxwindowgetclassdefaultattributes
}(
\helpref{GetWindowVariant
}{wxwindowgetwindowvariant
}()).
930 One advantage of using this function compared to the static version is that
931 the call is automatically dispatched to the correct class (as usual with
932 virtual functions) and you don't have to specify the class name explicitly.
934 The other one is that in the future this function could return different
935 results, for example it might return a different font for an ``Ok'' button
936 than for a generic button if the users GUI is configured to show such buttons
937 in bold font. Of course, the down side is that it is impossible to call this
938 function without actually having an object to apply it to whereas the static
939 version can be used without having to create an object first.
942 \membersection{wxWindow::GetDropTarget
}\label{wxwindowgetdroptarget
}
944 \constfunc{wxDropTarget*
}{GetDropTarget
}{\void}
946 Returns the associated drop target, which may be NULL.
950 \helpref{wxWindow::SetDropTarget
}{wxwindowsetdroptarget
},
951 \helpref{Drag and drop overview
}{wxdndoverview
}
954 \membersection{wxWindow::GetEventHandler
}\label{wxwindowgeteventhandler
}
956 \constfunc{wxEvtHandler*
}{GetEventHandler
}{\void}
958 Returns the event handler for this window. By default, the window is its
963 \helpref{wxWindow::SetEventHandler
}{wxwindowseteventhandler
},
\rtfsp
964 \helpref{wxWindow::PushEventHandler
}{wxwindowpusheventhandler
},
\rtfsp
965 \helpref{wxWindow::PopEventHandler
}{wxwindowpusheventhandler
},
\rtfsp
966 \helpref{wxEvtHandler::ProcessEvent
}{wxevthandlerprocessevent
},
\rtfsp
967 \helpref{wxEvtHandler
}{wxevthandler
}\rtfsp
970 \membersection{wxWindow::GetExtraStyle
}\label{wxwindowgetextrastyle
}
972 \constfunc{long
}{GetExtraStyle
}{\void}
974 Returns the extra style bits for the window.
977 \membersection{wxWindow::GetFont
}\label{wxwindowgetfont
}
979 \constfunc{wxFont
}{GetFont
}{\void}
981 Returns the font for this window.
985 \helpref{wxWindow::SetFont
}{wxwindowsetfont
}
988 \membersection{wxWindow::GetForegroundColour
}\label{wxwindowgetforegroundcolour
}
990 \func{virtual wxColour
}{GetForegroundColour
}{\void}
992 Returns the foreground colour of the window.
996 The interpretation of foreground colour is open to interpretation according
997 to the window class; it may be the text colour or other colour, or it may not
1000 \wxheading{See also
}
1002 \helpref{wxWindow::SetForegroundColour
}{wxwindowsetforegroundcolour
},
\rtfsp
1003 \helpref{wxWindow::SetBackgroundColour
}{wxwindowsetbackgroundcolour
},
\rtfsp
1004 \helpref{wxWindow::GetBackgroundColour
}{wxwindowgetbackgroundcolour
}
1007 \membersection{wxWindow::GetGrandParent
}\label{wxwindowgetgrandparent
}
1009 \constfunc{wxWindow*
}{GetGrandParent
}{\void}
1011 Returns the grandparent of a window, or NULL if there isn't one.
1014 \membersection{wxWindow::GetHandle
}\label{wxwindowgethandle
}
1016 \constfunc{void*
}{GetHandle
}{\void}
1018 Returns the platform-specific handle of the physical window. Cast it to an appropriate
1019 handle, such as
{\bf HWND
} for Windows,
{\bf Widget
} for Motif,
{\bf GtkWidget
} for GTK or
{\bf WinHandle
} for PalmOS.
1021 \pythonnote{This method will return an integer in wxPython.
}
1023 \perlnote{This method will return an integer in wxPerl.
}
1026 \membersection{wxWindow::GetHelpTextAtPoint
}\label{wxwindowgethelptextatpoint
}
1028 \constfunc{virtual wxString
}{GetHelpTextAtPoint
}{\param{const wxPoint &
}{point
},
\param{wxHelpEvent::Origin
}{origin
}}
1030 Gets the help text to be used as context-sensitive help for this window. This
1031 method should be overridden if the help message depends on the position inside
1032 the window, otherwise
\helpref{GetHelpText
}{wxwindowgethelptext
} can be used.
1034 \wxheading{Parameters
}
1036 \docparam{point
}{Coordinates of the mouse at the moment of help event emission.
}
1038 \docparam{origin
}{Help event origin, see also
\helpref{wxHelpEvent::GetOrigin
}{wxhelpeventgetorigin
}.
}
1043 \membersection{wxWindow::GetHelpText
}\label{wxwindowgethelptext
}
1045 \constfunc{virtual wxString
}{GetHelpText
}{\void}
1047 Gets the help text to be used as context-sensitive help for this window.
1049 Note that the text is actually stored by the current
\helpref{wxHelpProvider
}{wxhelpprovider
} implementation,
1050 and not in the window object itself.
1052 \wxheading{See also
}
1054 \helpref{SetHelpText
}{wxwindowsethelptext
},
\helpref{GetHelpTextAtPoint
}{wxwindowgethelptextatpoint
},
\helpref{wxHelpProvider
}{wxhelpprovider
}
1057 \membersection{wxWindow::GetId
}\label{wxwindowgetid
}
1059 \constfunc{int
}{GetId
}{\void}
1061 Returns the identifier of the window.
1065 Each window has an integer identifier. If the application has not provided one
1066 (or the default wxID
\_ANY) an unique identifier with a negative value will be generated.
1068 \wxheading{See also
}
1070 \helpref{wxWindow::SetId
}{wxwindowsetid
},
\rtfsp
1071 \helpref{Window identifiers
}{windowids
}
1074 \membersection{wxWindow::GetLabel
}\label{wxwindowgetlabel
}
1076 \constfunc{virtual wxString
}{GetLabel
}{\void}
1078 Generic way of getting a label from any window, for
1079 identification purposes.
1083 The interpretation of this function differs from class to class.
1084 For frames and dialogs, the value returned is the title. For buttons or static text controls, it is
1085 the button text. This function can be useful for meta-programs (such as testing
1086 tools or special-needs access programs) which need to identify windows
1089 \membersection{wxWindow::GetMaxSize
}\label{wxwindowgetmaxsize
}
1091 \constfunc{wxSize
}{GetMaxSize
}{\void}
1093 Returns the maximum size of the window, an indication to the sizer layout mechanism
1094 that this is the maximum possible size.
1096 \membersection{wxWindow::GetMinSize
}\label{wxwindowgetminsize
}
1098 \constfunc{wxSize
}{GetMinSize
}{\void}
1100 Returns the minimum size of the window, an indication to the sizer layout mechanism
1101 that this is the minimum required size.
1103 \membersection{wxWindow::GetName
}\label{wxwindowgetname
}
1105 \constfunc{virtual wxString
}{GetName
}{\void}
1107 Returns the window's name.
1111 This name is not guaranteed to be unique; it is up to the programmer to supply an appropriate
1112 name in the window constructor or via
\helpref{wxWindow::SetName
}{wxwindowsetname
}.
1114 \wxheading{See also
}
1116 \helpref{wxWindow::SetName
}{wxwindowsetname
}
1119 \membersection{wxWindow::GetParent
}\label{wxwindowgetparent
}
1121 \constfunc{virtual wxWindow*
}{GetParent
}{\void}
1123 Returns the parent of the window, or NULL if there is no parent.
1126 \membersection{wxWindow::GetPosition
}\label{wxwindowgetposition
}
1128 \constfunc{virtual void
}{GetPosition
}{\param{int*
}{x
},
\param{int*
}{y
}}
1130 \constfunc{wxPoint
}{GetPosition
}{\void}
1132 This gets the position of the window in pixels, relative to the parent window
1133 for the child windows or relative to the display origin for the top level
1136 \wxheading{Parameters
}
1138 \docparam{x
}{Receives the x position of the window if non-
\NULL.
}
1140 \docparam{y
}{Receives the y position of the window if non-
\NULL.
}
1142 \pythonnote{In place of a single overloaded method name, wxPython
1143 implements the following methods:
\par
1144 \indented{2cm
}{\begin{twocollist
}
1145 \twocolitem{{\bf GetPosition()
}}{Returns a wxPoint
}
1146 \twocolitem{{\bf GetPositionTuple()
}}{Returns a tuple (x, y)
}
1150 \perlnote{In wxPerl there are two methods instead of a single overloaded
1152 \indented{2cm
}{\begin{twocollist
}
1153 \twocolitem{{\bf GetPosition()
}}{Returns a Wx::Point
}
1154 \twocolitem{{\bf GetPositionXY()
}}{Returns a
2-element list
1160 \wxheading{See also
}
1162 \helpref{GetScreenPosition
}{wxwindowgetscreenposition
}
1165 \membersection{wxWindow::GetRect
}\label{wxwindowgetrect
}
1167 \constfunc{virtual wxRect
}{GetRect
}{\void}
1169 Returns the size and position of the window as a
\helpref{wxRect
}{wxrect
} object.
1171 \wxheading{See also
}
1173 \helpref{GetScreenRect
}{wxwindowgetscreenrect
}
1176 \membersection{wxWindow::GetScreenPosition
}\label{wxwindowgetscreenposition
}
1178 \constfunc{virtual void
}{GetScreenPosition
}{\param{int*
}{x
},
\param{int*
}{y
}}
1180 \constfunc{wxPoint
}{GetScreenPosition
}{\void}
1182 Returns the window position in screen coordinates, whether the window is a
1183 child window or a top level one.
1185 \wxheading{Parameters
}
1187 \docparam{x
}{Receives the x position of the window on the screen if non-
\NULL.
}
1189 \docparam{y
}{Receives the y position of the window on the screen if non-
\NULL.
}
1191 \wxheading{See also
}
1193 \helpref{GetPosition
}{wxwindowgetposition
}
1196 \membersection{wxWindow::GetScreenRect
}\label{wxwindowgetscreenrect
}
1198 \constfunc{virtual wxRect
}{GetScreenRect
}{\void}
1200 Returns the size and position of the window on the screen as a
1201 \helpref{wxRect
}{wxrect
} object.
1203 \wxheading{See also
}
1205 \helpref{GetRect
}{wxwindowgetrect
}
1208 \membersection{wxWindow::GetScrollPos
}\label{wxwindowgetscrollpos
}
1210 \func{virtual int
}{GetScrollPos
}{\param{int
}{orientation
}}
1212 Returns the built-in scrollbar position.
1214 \wxheading{See also
}
1216 See
\helpref{wxWindow::SetScrollbar
}{wxwindowsetscrollbar
}
1219 \membersection{wxWindow::GetScrollRange
}\label{wxwindowgetscrollrange
}
1221 \func{virtual int
}{GetScrollRange
}{\param{int
}{orientation
}}
1223 Returns the built-in scrollbar range.
1225 \wxheading{See also
}
1227 \helpref{wxWindow::SetScrollbar
}{wxwindowsetscrollbar
}
1230 \membersection{wxWindow::GetScrollThumb
}\label{wxwindowgetscrollthumb
}
1232 \func{virtual int
}{GetScrollThumb
}{\param{int
}{orientation
}}
1234 Returns the built-in scrollbar thumb size.
1236 \wxheading{See also
}
1238 \helpref{wxWindow::SetScrollbar
}{wxwindowsetscrollbar
}
1241 \membersection{wxWindow::GetSize
}\label{wxwindowgetsize
}
1243 \constfunc{void
}{GetSize
}{\param{int*
}{width
},
\param{int*
}{height
}}
1245 \constfunc{wxSize
}{GetSize
}{\void}
1247 This gets the size of the entire window in pixels,
1248 including title bar, border, scrollbars, etc.
1250 \wxheading{Parameters
}
1252 \docparam{width
}{Receives the window width.
}
1254 \docparam{height
}{Receives the window height.
}
1256 \pythonnote{In place of a single overloaded method name, wxPython
1257 implements the following methods:
\par
1258 \indented{2cm
}{\begin{twocollist
}
1259 \twocolitem{{\bf GetSize()
}}{Returns a wxSize
}
1260 \twocolitem{{\bf GetSizeTuple()
}}{Returns a
2-tuple (width, height)
}
1264 \perlnote{In wxPerl there are two methods instead of a single overloaded
1266 \indented{2cm
}{\begin{twocollist
}
1267 \twocolitem{{\bf GetSize()
}}{Returns a Wx::Size
}
1268 \twocolitem{{\bf GetSizeWH()
}}{Returns a
2-element list
1269 {\tt ( width, height )
}}
1273 \wxheading{See also
}
1275 \helpref{GetClientSize
}{wxwindowgetclientsize
},
\rtfsp
1276 \helpref{GetVirtualSize
}{wxwindowgetvirtualsize
}
1279 \membersection{wxWindow::GetSizer
}\label{wxwindowgetsizer
}
1281 \constfunc{wxSizer *
}{GetSizer
}{\void}
1283 Return the sizer associated with the window by a previous call to
1284 \helpref{SetSizer()
}{wxwindowsetsizer
} or
{\tt NULL
}.
1287 \membersection{wxWindow::GetTextExtent
}\label{wxwindowgettextextent
}
1289 \constfunc{virtual void
}{GetTextExtent
}{\param{const wxString\&
}{string
},
\param{int*
}{x
},
\param{int*
}{y
},
1290 \param{int*
}{descent = NULL
},
\param{int*
}{externalLeading = NULL
},
1291 \param{const wxFont*
}{font = NULL
},
\param{bool
}{ use16 =
{\tt false
}}}
1293 Gets the dimensions of the string as it would be drawn on the
1294 window with the currently selected font.
1296 \wxheading{Parameters
}
1298 \docparam{string
}{String whose extent is to be measured.
}
1300 \docparam{x
}{Return value for width.
}
1302 \docparam{y
}{Return value for height.
}
1304 \docparam{descent
}{Return value for descent (optional).
}
1306 \docparam{externalLeading
}{Return value for external leading (optional).
}
1308 \docparam{font
}{Font to use instead of the current window font (optional).
}
1310 \docparam{use16
}{If
{\tt true
},
{\it string
} contains
16-bit characters. The default is
{\tt false
}.
}
1312 \pythonnote{In place of a single overloaded method name, wxPython
1313 implements the following methods:
\par
1314 \indented{2cm
}{\begin{twocollist
}
1315 \twocolitem{{\bf GetTextExtent(string)
}}{Returns a
2-tuple, (width, height)
}
1316 \twocolitem{{\bf GetFullTextExtent(string, font=NULL)
}}{Returns a
1317 4-tuple, (width, height, descent, externalLeading)
}
1321 \perlnote{In wxPerl this method takes only the
{\tt string
} and optionally
1322 {\tt font
} parameters, and returns a
4-element list
1323 {\tt ( x, y, descent, externalLeading )
}.
}
1326 \membersection{wxWindow::GetToolTip
}\label{wxwindowgettooltip
}
1328 \constfunc{wxToolTip*
}{GetToolTip
}{\void}
1330 Get the associated tooltip or NULL if none.
1333 \membersection{wxWindow::GetUpdateRegion
}\label{wxwindowgetupdateregion
}
1335 \constfunc{virtual wxRegion
}{GetUpdateRegion
}{\void}
1337 Returns the region specifying which parts of the window have been damaged. Should
1338 only be called within an
\helpref{wxPaintEvent
}{wxpaintevent
} handler.
1340 \wxheading{See also
}
1342 \helpref{wxRegion
}{wxregion
},
\rtfsp
1343 \helpref{wxRegionIterator
}{wxregioniterator
}
1346 \membersection{wxWindow::GetValidator
}\label{wxwindowgetvalidator
}
1348 \constfunc{wxValidator*
}{GetValidator
}{\void}
1350 Returns a pointer to the current validator for the window, or NULL if there is none.
1353 \membersection{wxWindow::GetVirtualSize
}\label{wxwindowgetvirtualsize
}
1355 \constfunc{void
}{GetVirtualSize
}{\param{int*
}{width
},
\param{int*
}{height
}}
1357 \constfunc{wxSize
}{GetVirtualSize
}{\void}
1359 This gets the virtual size of the window in pixels. By default it
1360 returns the client size of the window, but after a call to
1361 \helpref{SetVirtualSize
}{wxwindowsetvirtualsize
} it will return
1364 \wxheading{Parameters
}
1366 \docparam{width
}{Receives the window virtual width.
}
1368 \docparam{height
}{Receives the window virtual height.
}
1370 \helpref{GetSize
}{wxwindowgetsize
},
\rtfsp
1371 \helpref{GetClientSize
}{wxwindowgetclientsize
}
1374 \membersection{wxWindow::GetWindowStyleFlag
}\label{wxwindowgetwindowstyleflag
}
1376 \constfunc{long
}{GetWindowStyleFlag
}{\void}
1378 Gets the window style that was passed to the constructor or
{\bf Create
}
1379 method.
{\bf GetWindowStyle()
} is another name for the same function.
1382 \membersection{wxWindow::GetWindowVariant
}\label{wxwindowgetwindowvariant
}
1384 \constfunc{wxWindowVariant
}{GetWindowVariant
}{\void}
1386 Returns the value previously passed to
1387 \helpref{wxWindow::SetWindowVariant
}{wxwindowsetwindowvariant
}.
1390 \membersection{wxWindow::HasCapture
}\label{wxwindowhascapture
}
1392 \constfunc{virtual bool
}{HasCapture
}{\void}
1394 Returns
{\tt true
} if this window has the current mouse capture.
1396 \wxheading{See also
}
1398 \helpref{wxWindow::CaptureMouse
}{wxwindowcapturemouse
},
1399 \helpref{wxWindow::ReleaseMouse
}{wxwindowreleasemouse
},
1400 \helpref{wxMouseCaptureLostEvent
}{wxmousecapturelostevent
}
1401 \helpref{wxMouseCaptureChangedEvent
}{wxmousecapturechangedevent
}
1404 \membersection{wxWindow::HasFlag
}\label{wxwindowhasflag
}
1406 \constfunc{bool
}{HasFlag
}{\param{int
}{flag
}}
1408 Returns
\texttt{true
} if the window has the given
\arg{flag
} bit set.
1411 \membersection{wxWindow::HasMultiplePages
}\label{wxwindowhasmultiplepages
}
1413 \constfunc{virtual bool
}{HasMultiplePages
}{\void}
1415 This method should be overridden to return
\texttt{true
} if this window has
1416 multiple pages. All standard class with multiple pages such as
1417 \helpref{wxNotebook
}{wxnotebook
},
\helpref{wxListbook
}{wxlistbook
} and
1418 \helpref{wxTreebook
}{wxtreebook
} already override it to return
\texttt{true
}
1419 and user-defined classes with similar behaviour should do it as well to allow
1420 the library to handle such windows appropriately.
1423 \membersection{wxWindow::HasScrollbar
}\label{wxwindowhasscrollbar
}
1425 \constfunc{virtual bool
}{HasScrollbar
}{\param{int
}{orient
}}
1427 Returns
{\tt true
} if this window has a scroll bar for this orientation.
1429 \wxheading{Parameters
}
1431 \docparam{orient
}{Orientation to check, either
{\tt wxHORIZONTAL
} or
{\tt wxVERTICAL
}.
}
1434 \membersection{wxWindow::HasTransparentBackground
}\label{wxwindowhastransparentbackground
}
1436 \constfunc{virtual bool
}{HasTransparentBackground
}{\void}
1438 Returns
\true if this window background is transparent (as, for example, for
1439 wxStaticText) and should show the parent window background.
1441 This method is mostly used internally by the library itself and you normally
1442 shouldn't have to call it. You may, however, have to override it in your
1443 wxWindow-derived class to ensure that background is painted correctly.
1446 \membersection{wxWindow::Hide
}\label{wxwindowhide
}
1448 \func{bool
}{Hide
}{\void}
1450 Equivalent to calling
\helpref{Show
}{wxwindowshow
}(
{\tt false
}).
1453 \membersection{wxWindow::InheritAttributes
}\label{wxwindowinheritattributes
}
1455 \func{void
}{InheritAttributes
}{\void}
1457 This function is (or should be, in case of custom controls) called during
1458 window creation to intelligently set up the window visual attributes, that is
1459 the font and the foreground and background colours.
1461 By ``intelligently'' the following is meant: by default, all windows use their
1462 own
\helpref{default
}{wxwindowgetclassdefaultattributes
} attributes. However
1463 if some of the parents attributes are explicitly (that is, using
1464 \helpref{SetFont
}{wxwindowsetfont
} and not
1465 \helpref{SetOwnFont
}{wxwindowsetownfont
}) changed
\emph{and
} if the
1466 corresponding attribute hadn't been explicitly set for this window itself,
1467 then this window takes the same value as used by the parent. In addition, if
1468 the window overrides
\helpref{ShouldInheritColours
}{wxwindowshouldinheritcolours
}
1469 to return
\false, the colours will not be changed no matter what and only the
1472 This rather complicated logic is necessary in order to accommodate the
1473 different usage scenarios. The most common one is when all default attributes
1474 are used and in this case, nothing should be inherited as in modern GUIs
1475 different controls use different fonts (and colours) than their siblings so
1476 they can't inherit the same value from the parent. However it was also deemed
1477 desirable to allow to simply change the attributes of all children at once by
1478 just changing the font or colour of their common parent, hence in this case we
1479 do inherit the parents attributes.
1482 \membersection{wxWindow::InitDialog
}\label{wxwindowinitdialog
}
1484 \func{void
}{InitDialog
}{\void}
1486 Sends an
{\tt wxEVT
\_INIT\_DIALOG} event, whose handler usually transfers data
1487 to the dialog via validators.
1490 \membersection{wxWindow::InvalidateBestSize
}\label{wxwindowinvalidatebestsize
}
1492 \func{void
}{InvalidateBestSize
}{\void}
1494 Resets the cached best size value so it will be recalculated the next time it is needed.
1497 \membersection{wxWindow::IsDoubleBuffered
}\label{wxwindowisdoublebuffered
}
1499 \constfunc{virtual bool
}{IsDoubleBuffered
}{\void}
1501 Returns
\true if the window contents is double-buffered by the system, i.e. if
1502 any drawing done on the window is really done on a temporary backing surface
1503 and transferred to the screen all at once later.
1505 \wxheading{See also
}
1507 \helpref{wxBufferedDC
}{wxbuffereddc
}
1510 \membersection{wxWindow::IsEnabled
}\label{wxwindowisenabled
}
1512 \constfunc{virtual bool
}{IsEnabled
}{\void}
1514 Returns
{\tt true
} if the window is enabled for input,
{\tt false
} otherwise.
1516 \wxheading{See also
}
1518 \helpref{wxWindow::Enable
}{wxwindowenable
}
1521 \membersection{wxWindow::IsExposed
}\label{wxwindowisexposed
}
1523 \constfunc{bool
}{IsExposed
}{\param{int
}{x
},
\param{int
}{y
}}
1525 \constfunc{bool
}{IsExposed
}{\param{wxPoint
}{\&pt
}}
1527 \constfunc{bool
}{IsExposed
}{\param{int
}{x
},
\param{int
}{y
},
\param{int
}{w
},
\param{int
}{h
}}
1529 \constfunc{bool
}{IsExposed
}{\param{wxRect
}{\&rect
}}
1531 Returns
{\tt true
} if the given point or rectangle area has been exposed since the
1532 last repaint. Call this in an paint event handler to optimize redrawing by
1533 only redrawing those areas, which have been exposed.
1535 \pythonnote{In place of a single overloaded method name, wxPython
1536 implements the following methods:
\par
1537 \indented{2cm
}{\begin{twocollist
}
1538 \twocolitem{{\bf IsExposed(x,y, w=
0,h=
0)
}}{}
1539 \twocolitem{{\bf IsExposedPoint(pt)
}}{}
1540 \twocolitem{{\bf IsExposedRect(rect)
}}{}
1544 \membersection{wxWindow::IsFrozen
}\label{wxwindowisfrozen
}
1546 \constfunc{virtual bool
}{IsFrozen
}{\void}
1548 Returns
\true if the window is currently frozen by a call to
1549 \helpref{Freeze()
}{wxwindowfreeze
}.
1551 \wxheading{See also
}
1553 \helpref{Thaw()
}{wxwindowthaw
}
1556 \membersection{wxWindow::IsRetained
}\label{wxwindowisretained
}
1558 \constfunc{virtual bool
}{IsRetained
}{\void}
1560 Returns
{\tt true
} if the window is retained,
{\tt false
} otherwise.
1564 Retained windows are only available on X platforms.
1567 \membersection{wxWindow::IsShown
}\label{wxwindowisshown
}
1569 \constfunc{virtual bool
}{IsShown
}{\void}
1571 Returns
{\tt true
} if the window is shown,
{\tt false
} if it has been hidden.
1573 \wxheading{See also
}
1575 \helpref{wxWindow::IsShownOnScreen
}{wxwindowisshownonscreen
}
1578 \membersection{wxWindow::IsShownOnScreen
}\label{wxwindowisshownonscreen
}
1580 \constfunc{virtual bool
}{IsShownOnScreen
}{\void}
1582 Returns
{\tt true
} if the window is physically visible on the screen, i.e. it
1583 is shown and all its parents up to the toplevel window are shown as well.
1585 \wxheading{See also
}
1587 \helpref{wxWindow::IsShown
}{wxwindowisshown
}
1590 \membersection{wxWindow::IsTopLevel
}\label{wxwindowistoplevel
}
1592 \constfunc{bool
}{IsTopLevel
}{\void}
1594 Returns
{\tt true
} if the given window is a top-level one. Currently all frames and
1595 dialogs are considered to be top-level windows (even if they have a parent
1599 \membersection{wxWindow::Layout
}\label{wxwindowlayout
}
1601 \func{void
}{Layout
}{\void}
1603 Invokes the constraint-based layout algorithm or the sizer-based algorithm
1606 See
\helpref{wxWindow::SetAutoLayout
}{wxwindowsetautolayout
}: when auto
1607 layout is on, this function gets called automatically when the window is resized.
1610 \membersection{wxWindow::LineDown
}\label{wxwindowlinedown
}
1612 This is just a wrapper for
\helpref{ScrollLines
}{wxwindowscrolllines
}$(
1)$.
1615 \membersection{wxWindow::LineUp
}\label{wxwindowlineup
}
1617 This is just a wrapper for
\helpref{ScrollLines
}{wxwindowscrolllines
}$(-
1)$.
1620 \membersection{wxWindow::Lower
}\label{wxwindowlower
}
1622 \func{void
}{Lower
}{\void}
1624 Lowers the window to the bottom of the window hierarchy (z-order).
1626 \wxheading{See also
}
1628 \helpref{Raise
}{wxwindowraise
}
1631 \membersection{wxWindow::MakeModal
}\label{wxwindowmakemodal
}
1633 \func{virtual void
}{MakeModal
}{\param{bool
}{flag
}}
1635 Disables all other windows in the application so that
1636 the user can only interact with this window.
1638 \wxheading{Parameters
}
1640 \docparam{flag
}{If
{\tt true
}, this call disables all other windows in the application so that
1641 the user can only interact with this window. If
{\tt false
}, the effect is reversed.
}
1644 \membersection{wxWindow::Move
}\label{wxwindowmove
}
1646 \func{void
}{Move
}{\param{int
}{ x
},
\param{int
}{ y
}}
1648 \func{void
}{Move
}{\param{const wxPoint\&
}{ pt
}}
1650 Moves the window to the given position.
1652 \wxheading{Parameters
}
1654 \docparam{x
}{Required x position.
}
1656 \docparam{y
}{Required y position.
}
1658 \docparam{pt
}{\helpref{wxPoint
}{wxpoint
} object representing the position.
}
1662 Implementations of SetSize can also implicitly implement the
1663 wxWindow::Move function, which is defined in the base wxWindow class
1667 SetSize(x, y, wxDefaultCoord, wxDefaultCoord, wxSIZE_USE_EXISTING);
1670 \wxheading{See also
}
1672 \helpref{wxWindow::SetSize
}{wxwindowsetsize
}
1674 \pythonnote{In place of a single overloaded method name, wxPython
1675 implements the following methods:
\par
1676 \indented{2cm
}{\begin{twocollist
}
1677 \twocolitem{{\bf Move(point)
}}{Accepts a wxPoint
}
1678 \twocolitem{{\bf MoveXY(x, y)
}}{Accepts a pair of integers
}
1683 \membersection{wxWindow::MoveAfterInTabOrder
}\label{wxwindowmoveafterintaborder
}
1685 \func{void
}{MoveAfterInTabOrder
}{\param{wxWindow *
}{win
}}
1687 Moves this window in the tab navigation order after the specified
\arg{win
}.
1688 This means that when the user presses
\texttt{TAB
} key on that other window,
1689 the focus switches to this window.
1691 Default tab order is the same as creation order, this function and
1692 \helpref{MoveBeforeInTabOrder()
}{wxwindowmovebeforeintaborder
} allow to change
1693 it after creating all the windows.
1695 \wxheading{Parameters
}
1697 \docparam{win
}{A sibling of this window which should precede it in tab order,
1701 \membersection{wxWindow::MoveBeforeInTabOrder
}\label{wxwindowmovebeforeintaborder
}
1703 \func{void
}{MoveBeforeInTabOrder
}{\param{wxWindow *
}{win
}}
1705 Same as
\helpref{MoveAfterInTabOrder
}{wxwindowmoveafterintaborder
} except that
1706 it inserts this window just before
\arg{win
} instead of putting it right after
1710 \membersection{wxWindow::Navigate
}\label{wxwindownavigate
}
1712 \func{bool
}{Navigate
}{\param{int
}{ flags = wxNavigationKeyEvent::IsForward
}}
1714 Does keyboard navigation from this window to another, by sending
1715 a wxNavigationKeyEvent.
1717 \wxheading{Parameters
}
1719 \docparam{flags
}{A combination of wxNavigationKeyEvent::IsForward and wxNavigationKeyEvent::WinChange.
}
1723 You may wish to call this from a text control custom keypress handler to do the default
1724 navigation behaviour for the tab key, since the standard default behaviour for
1725 a multiline text control with the wxTE
\_PROCESS\_TAB style is to insert a tab
1726 and not navigate to the next control.
1728 %% VZ: wxWindow::OnXXX() functions should not be documented but I'm leaving
1729 %% the old docs here in case we want to move any still needed bits to
1730 %% the right location (i.e. probably the corresponding events docs)
1732 %% \membersection{wxWindow::OnActivate}\label{wxwindowonactivate}
1734 %% \func{void}{OnActivate}{\param{wxActivateEvent\&}{ event}}
1736 %% Called when a window is activated or deactivated.
1738 %% \wxheading{Parameters}
1740 %% \docparam{event}{Object containing activation information.}
1742 %% \wxheading{Remarks}
1744 %% If the window is being activated, \helpref{wxActivateEvent::GetActive}{wxactivateeventgetactive} returns {\tt true},
1745 %% otherwise it returns {\tt false} (it is being deactivated).
1747 %% \wxheading{See also}
1749 %% \helpref{wxActivateEvent}{wxactivateevent},\rtfsp
1750 %% \helpref{Event handling overview}{eventhandlingoverview}
1752 %% \membersection{wxWindow::OnChar}\label{wxwindowonchar}
1754 %% \func{void}{OnChar}{\param{wxKeyEvent\&}{ event}}
1756 %% Called when the user has pressed a key that is not a modifier (SHIFT, CONTROL or ALT).
1758 %% \wxheading{Parameters}
1760 %% \docparam{event}{Object containing keypress information. See \helpref{wxKeyEvent}{wxkeyevent} for
1761 %% details about this class.}
1763 %% \wxheading{Remarks}
1765 %% This member function is called in response to a keypress. To intercept this event,
1766 %% use the EVT\_CHAR macro in an event table definition. Your {\bf OnChar} handler may call this
1767 %% default function to achieve default keypress functionality.
1769 %% Note that the ASCII values do not have explicit key codes: they are passed as ASCII
1772 %% Note that not all keypresses can be intercepted this way. If you wish to intercept modifier
1773 %% keypresses, then you will need to use \helpref{wxWindow::OnKeyDown}{wxwindowonkeydown} or
1774 %% \helpref{wxWindow::OnKeyUp}{wxwindowonkeyup}.
1776 %% Most, but not all, windows allow keypresses to be intercepted.
1778 %% {\bf Tip:} be sure to call {\tt event.Skip()} for events that you don't process in this function,
1779 %% otherwise menu shortcuts may cease to work under Windows.
1781 %% \wxheading{See also}
1783 %% \helpref{wxWindow::OnKeyDown}{wxwindowonkeydown}, \helpref{wxWindow::OnKeyUp}{wxwindowonkeyup},\rtfsp
1784 %% \helpref{wxKeyEvent}{wxkeyevent}, \helpref{wxWindow::OnCharHook}{wxwindowoncharhook},\rtfsp
1785 %% \helpref{Event handling overview}{eventhandlingoverview}
1787 %% \membersection{wxWindow::OnCharHook}\label{wxwindowoncharhook}
1789 %% \func{void}{OnCharHook}{\param{wxKeyEvent\&}{ event}}
1791 %% This member is called to allow the window to intercept keyboard events
1792 %% before they are processed by child windows.
1794 %% \wxheading{Parameters}
1796 %% \docparam{event}{Object containing keypress information. See \helpref{wxKeyEvent}{wxkeyevent} for
1797 %% details about this class.}
1799 %% \wxheading{Remarks}
1801 %% This member function is called in response to a keypress, if the window is active. To intercept this event,
1802 %% use the EVT\_CHAR\_HOOK macro in an event table definition. If you do not process a particular
1803 %% keypress, call \helpref{wxEvent::Skip}{wxeventskip} to allow default processing.
1805 %% An example of using this function is in the implementation of escape-character processing for wxDialog,
1806 %% where pressing ESC dismisses the dialog by {\bf OnCharHook} 'forging' a cancel button press event.
1808 %% Note that the ASCII values do not have explicit key codes: they are passed as ASCII
1811 %% This function is only relevant to top-level windows (frames and dialogs), and under
1812 %% Windows only. Under GTK the normal EVT\_CHAR\_ event has the functionality, i.e.
1813 %% you can intercept it, and if you don't call \helpref{wxEvent::Skip}{wxeventskip}
1814 %% the window won't get the event.
1816 %% \wxheading{See also}
1818 %% \helpref{wxKeyEvent}{wxkeyevent},\rtfsp
1819 %% \helpref{wxWindow::OnCharHook}{wxwindowoncharhook},\rtfsp
1820 %% %% GD: OnXXX functions are not documented
1821 %% %%\helpref{wxApp::OnCharHook}{wxapponcharhook},\rtfsp
1822 %% \helpref{Event handling overview}{eventhandlingoverview}
1824 %% \membersection{wxWindow::OnCommand}\label{wxwindowoncommand}
1826 %% \func{virtual void}{OnCommand}{\param{wxEvtHandler\& }{object}, \param{wxCommandEvent\& }{event}}
1828 %% This virtual member function is called if the control does not handle the command event.
1830 %% \wxheading{Parameters}
1832 %% \docparam{object}{Object receiving the command event.}
1834 %% \docparam{event}{Command event}
1836 %% \wxheading{Remarks}
1838 %% This virtual function is provided mainly for backward compatibility. You can also intercept commands
1839 %% from child controls by using an event table, with identifiers or identifier ranges to identify
1840 %% the control(s) in question.
1842 %% \wxheading{See also}
1844 %% \helpref{wxCommandEvent}{wxcommandevent},\rtfsp
1845 %% \helpref{Event handling overview}{eventhandlingoverview}
1847 %% \membersection{wxWindow::OnClose}\label{wxwindowonclose}
1849 %% \func{virtual bool}{OnClose}{\void}
1851 %% Called when the user has tried to close a a frame
1852 %% or dialog box using the window manager (X) or system menu (Windows).
1854 %% {\bf Note:} This is an obsolete function.
1855 %% It is superseded by the \helpref{wxWindow::OnCloseWindow}{wxwindowonclosewindow} event
1858 %% \wxheading{Return value}
1860 %% If {\tt true} is returned by OnClose, the window will be deleted by the system, otherwise the
1861 %% attempt will be ignored. Do not delete the window from within this handler, although
1862 %% you may delete other windows.
1864 %% \wxheading{See also}
1866 %% \helpref{Window deletion overview}{windowdeletionoverview},\rtfsp
1867 %% \helpref{wxWindow::Close}{wxwindowclose},\rtfsp
1868 %% \helpref{wxWindow::OnCloseWindow}{wxwindowonclosewindow},\rtfsp
1869 %% \helpref{wxCloseEvent}{wxcloseevent}
1871 %% \membersection{wxWindow::OnKeyDown}\label{wxwindowonkeydown}
1873 %% \func{void}{OnKeyDown}{\param{wxKeyEvent\&}{ event}}
1875 %% Called when the user has pressed a key, before it is translated into an ASCII value using other
1876 %% modifier keys that might be pressed at the same time.
1878 %% \wxheading{Parameters}
1880 %% \docparam{event}{Object containing keypress information. See \helpref{wxKeyEvent}{wxkeyevent} for
1881 %% details about this class.}
1883 %% \wxheading{Remarks}
1885 %% This member function is called in response to a key down event. To intercept this event,
1886 %% use the EVT\_KEY\_DOWN macro in an event table definition. Your {\bf OnKeyDown} handler may call this
1887 %% default function to achieve default keypress functionality.
1889 %% Note that not all keypresses can be intercepted this way. If you wish to intercept special
1890 %% keys, such as shift, control, and function keys, then you will need to use \helpref{wxWindow::OnKeyDown}{wxwindowonkeydown} or
1891 %% \helpref{wxWindow::OnKeyUp}{wxwindowonkeyup}.
1893 %% Most, but not all, windows allow keypresses to be intercepted.
1895 %% {\bf Tip:} be sure to call {\tt event.Skip()} for events that you don't process in this function,
1896 %% otherwise menu shortcuts may cease to work under Windows.
1898 %% \wxheading{See also}
1900 %% \helpref{wxWindow::OnChar}{wxwindowonchar}, \helpref{wxWindow::OnKeyUp}{wxwindowonkeyup},\rtfsp
1901 %% \helpref{wxKeyEvent}{wxkeyevent}, \helpref{wxWindow::OnCharHook}{wxwindowoncharhook},\rtfsp
1902 %% \helpref{Event handling overview}{eventhandlingoverview}
1904 %% \membersection{wxWindow::OnKeyUp}\label{wxwindowonkeyup}
1906 %% \func{void}{OnKeyUp}{\param{wxKeyEvent\&}{ event}}
1908 %% Called when the user has released a key.
1910 %% \wxheading{Parameters}
1912 %% \docparam{event}{Object containing keypress information. See \helpref{wxKeyEvent}{wxkeyevent} for
1913 %% details about this class.}
1915 %% \wxheading{Remarks}
1917 %% This member function is called in response to a key up event. To intercept this event,
1918 %% use the EVT\_KEY\_UP macro in an event table definition. Your {\bf OnKeyUp} handler may call this
1919 %% default function to achieve default keypress functionality.
1921 %% Note that not all keypresses can be intercepted this way. If you wish to intercept special
1922 %% keys, such as shift, control, and function keys, then you will need to use \helpref{wxWindow::OnKeyDown}{wxwindowonkeydown} or
1923 %% \helpref{wxWindow::OnKeyUp}{wxwindowonkeyup}.
1925 %% Most, but not all, windows allow key up events to be intercepted.
1927 %% \wxheading{See also}
1929 %% \helpref{wxWindow::OnChar}{wxwindowonchar}, \helpref{wxWindow::OnKeyDown}{wxwindowonkeydown},\rtfsp
1930 %% \helpref{wxKeyEvent}{wxkeyevent}, \helpref{wxWindow::OnCharHook}{wxwindowoncharhook},\rtfsp
1931 %% \helpref{Event handling overview}{eventhandlingoverview}
1933 %% \membersection{wxWindow::OnInitDialog}\label{wxwindowoninitdialog}
1935 %% \func{void}{OnInitDialog}{\param{wxInitDialogEvent\&}{ event}}
1937 %% Default handler for the wxEVT\_INIT\_DIALOG event. Calls \helpref{wxWindow::TransferDataToWindow}{wxwindowtransferdatatowindow}.
1939 %% \wxheading{Parameters}
1941 %% \docparam{event}{Dialog initialisation event.}
1943 %% \wxheading{Remarks}
1945 %% Gives the window the default behaviour of transferring data to child controls via
1946 %% the validator that each control has.
1948 %% \wxheading{See also}
1950 %% \helpref{wxValidator}{wxvalidator}, \helpref{wxWindow::TransferDataToWindow}{wxwindowtransferdatatowindow}
1952 %% \membersection{wxWindow::OnMenuHighlight}\label{wxwindowonmenuhighlight}
1954 %% \func{void}{OnMenuHighlight}{\param{wxMenuEvent\& }{event}}
1956 %% Called when a menu select is received from a menu bar: that is, the
1957 %% mouse cursor is over a menu item, but the left mouse button has not been
1960 %% \wxheading{Parameters}
1962 %% \docparam{event}{The menu highlight event. For more information, see \helpref{wxMenuEvent}{wxmenuevent}.}
1964 %% \wxheading{Remarks}
1966 %% You can choose any member function to receive
1967 %% menu select events, using the EVT\_MENU\_HIGHLIGHT macro for individual menu items or EVT\_MENU\_HIGHLIGHT\_ALL macro
1968 %% for all menu items.
1970 %% The default implementation for \helpref{wxFrame::OnMenuHighlight}{wxframeonmenuhighlight} displays help
1971 %% text in the first field of the status bar.
1973 %% This function was known as {\bf OnMenuSelect} in earlier versions of wxWidgets, but this was confusing
1974 %% since a selection is normally a left-click action.
1976 %% \wxheading{See also}
1978 %% \helpref{wxMenuEvent}{wxmenuevent},\rtfsp
1979 %% \helpref{Event handling overview}{eventhandlingoverview}
1982 %% \membersection{wxWindow::OnMouseEvent}\label{wxwindowonmouseevent}
1984 %% \func{void}{OnMouseEvent}{\param{wxMouseEvent\&}{ event}}
1986 %% Called when the user has initiated an event with the
1989 %% \wxheading{Parameters}
1991 %% \docparam{event}{The mouse event. See \helpref{wxMouseEvent}{wxmouseevent} for
1994 %% \wxheading{Remarks}
1996 %% Most, but not all, windows respond to this event.
1998 %% To intercept this event, use the EVT\_MOUSE\_EVENTS macro in an event table definition, or individual
1999 %% mouse event macros such as EVT\_LEFT\_DOWN.
2001 %% \wxheading{See also}
2003 %% \helpref{wxMouseEvent}{wxmouseevent},\rtfsp
2004 %% \helpref{Event handling overview}{eventhandlingoverview}
2006 %% \membersection{wxWindow::OnMove}\label{wxwindowonmove}
2008 %% \func{void}{OnMove}{\param{wxMoveEvent\& }{event}}
2010 %% Called when a window is moved.
2012 %% \wxheading{Parameters}
2014 %% \docparam{event}{The move event. For more information, see \helpref{wxMoveEvent}{wxmoveevent}.}
2016 %% \wxheading{Remarks}
2018 %% Use the EVT\_MOVE macro to intercept move events.
2020 %% \wxheading{Remarks}
2022 %% Not currently implemented.
2024 %% \wxheading{See also}
2026 %% \helpref{wxMoveEvent}{wxmoveevent},\rtfsp
2027 %% \helpref{wxFrame::OnSize}{wxframeonsize},\rtfsp
2028 %% \helpref{Event handling overview}{eventhandlingoverview}
2030 %% \membersection{wxWindow::OnPaint}\label{wxwindowonpaint}
2032 %% \func{void}{OnPaint}{\param{wxPaintEvent\& }{event}}
2034 %% Sent to the event handler when the window must be refreshed.
2036 %% \wxheading{Parameters}
2038 %% \docparam{event}{Paint event. For more information, see \helpref{wxPaintEvent}{wxpaintevent}.}
2040 %% \wxheading{Remarks}
2042 %% Use the EVT\_PAINT macro in an event table definition to intercept paint events.
2044 %% Note that In a paint event handler, the application must {\it always} create a \helpref{wxPaintDC}{wxpaintdc} object,
2045 %% even if you do not use it. Otherwise, under MS Windows, refreshing for this and other windows will go wrong.
2051 %% void MyWindow::OnPaint(wxPaintEvent\& event)
2053 %% wxPaintDC dc(this);
2055 %% DrawMyDocument(dc);
2060 %% You can optimize painting by retrieving the rectangles
2061 %% that have been damaged and only repainting these. The rectangles are in
2062 %% terms of the client area, and are unscrolled, so you will need to do
2063 %% some calculations using the current view position to obtain logical,
2066 %% Here is an example of using the \helpref{wxRegionIterator}{wxregioniterator} class:
2070 %% // Called when window needs to be repainted.
2071 %% void MyWindow::OnPaint(wxPaintEvent\& event)
2073 %% wxPaintDC dc(this);
2075 %% // Find Out where the window is scrolled to
2076 %% int vbX,vbY; // Top left corner of client
2077 %% GetViewStart(&vbX,&vbY);
2079 %% int vX,vY,vW,vH; // Dimensions of client area in pixels
2080 %% wxRegionIterator upd(GetUpdateRegion()); // get the update rect list
2089 %% // Alternatively we can do this:
2091 %% // upd.GetRect(&rect);
2093 %% // Repaint this rectangle
2102 %% \wxheading{See also}
2104 %% \helpref{wxPaintEvent}{wxpaintevent},\rtfsp
2105 %% \helpref{wxPaintDC}{wxpaintdc},\rtfsp
2106 %% \helpref{Event handling overview}{eventhandlingoverview}
2108 %% \membersection{wxWindow::OnScroll}\label{wxwindowonscroll}
2110 %% \func{void}{OnScroll}{\param{wxScrollWinEvent\& }{event}}
2112 %% Called when a scroll window event is received from one of the window's built-in scrollbars.
2114 %% \wxheading{Parameters}
2116 %% \docparam{event}{Command event. Retrieve the new scroll position by
2117 %% calling \helpref{wxScrollEvent::GetPosition}{wxscrolleventgetposition}, and the
2118 %% scrollbar orientation by calling \helpref{wxScrollEvent::GetOrientation}{wxscrolleventgetorientation}.}
2120 %% \wxheading{Remarks}
2122 %% Note that it is not possible to distinguish between horizontal and vertical scrollbars
2123 %% until the function is executing (you can't have one function for vertical, another
2124 %% for horizontal events).
2126 %% \wxheading{See also}
2128 %% \helpref{wxScrollWinEvent}{wxscrollwinevent},\rtfsp
2129 %% \helpref{Event handling overview}{eventhandlingoverview}
2131 %% \membersection{wxWindow::OnSetFocus}\label{wxwindowonsetfocus}
2133 %% \func{void}{OnSetFocus}{\param{wxFocusEvent\& }{event}}
2135 %% Called when a window's focus is being set.
2137 %% \wxheading{Parameters}
2139 %% \docparam{event}{The focus event. For more information, see \helpref{wxFocusEvent}{wxfocusevent}.}
2141 %% \wxheading{Remarks}
2143 %% To intercept this event, use the macro EVT\_SET\_FOCUS in an event table definition.
2145 %% Most, but not all, windows respond to this event.
2147 %% \wxheading{See also}
2149 %% \helpref{wxFocusEvent}{wxfocusevent}, \helpref{wxWindow::OnKillFocus}{wxwindowonkillfocus},\rtfsp
2150 %% \helpref{Event handling overview}{eventhandlingoverview}
2152 %% \membersection{wxWindow::OnSize}\label{wxwindowonsize}
2154 %% \func{void}{OnSize}{\param{wxSizeEvent\& }{event}}
2156 %% Called when the window has been resized. This is not a virtual function; you should
2157 %% provide your own non-virtual OnSize function and direct size events to it using EVT\_SIZE
2158 %% in an event table definition.
2160 %% \wxheading{Parameters}
2162 %% \docparam{event}{Size event. For more information, see \helpref{wxSizeEvent}{wxsizeevent}.}
2164 %% \wxheading{Remarks}
2166 %% You may wish to use this for frames to resize their child windows as appropriate.
2168 %% Note that the size passed is of
2169 %% the whole window: call \helpref{wxWindow::GetClientSize}{wxwindowgetclientsize} for the area which may be
2170 %% used by the application.
2172 %% When a window is resized, usually only a small part of the window is damaged and you
2173 %% may only need to repaint that area. However, if your drawing depends on the size of the window,
2174 %% you may need to clear the DC explicitly and repaint the whole window. In which case, you
2175 %% may need to call \helpref{wxWindow::Refresh}{wxwindowrefresh} to invalidate the entire window.
2177 %% \wxheading{See also}
2179 %% \helpref{wxSizeEvent}{wxsizeevent},\rtfsp
2180 %% \helpref{Event handling overview}{eventhandlingoverview}
2182 %% \membersection{wxWindow::OnSysColourChanged}\label{wxwindowonsyscolourchanged}
2184 %% \func{void}{OnSysColourChanged}{\param{wxOnSysColourChangedEvent\& }{event}}
2186 %% Called when the user has changed the system colours. Windows only.
2188 %% \wxheading{Parameters}
2190 %% \docparam{event}{System colour change event. For more information, see \helpref{wxSysColourChangedEvent}{wxsyscolourchangedevent}.}
2192 %% \wxheading{See also}
2194 %% \helpref{wxSysColourChangedEvent}{wxsyscolourchangedevent},\rtfsp
2195 %% \helpref{Event handling overview}{eventhandlingoverview}
2198 \membersection{wxWindow::OnInternalIdle
}\label{wxwindowoninternalidle
}
2200 \func{virtual void
}{OnInternalIdle
}{\void}
2202 This virtual function is normally only used internally, but
2203 sometimes an application may need it to implement functionality
2204 that should not be disabled by an application defining an OnIdle
2205 handler in a derived class.
2207 This function may be used to do delayed painting, for example,
2208 and most implementations call
\helpref{wxWindow::UpdateWindowUI
}{wxwindowupdatewindowui
}
2209 in order to send update events to the window in idle time.
2212 \membersection{wxWindow::PageDown
}\label{wxwindowpagedown
}
2214 This is just a wrapper for
\helpref{ScrollPages()
}{wxwindowscrollpages
}$(
1)$.
2217 \membersection{wxWindow::PageUp
}\label{wxwindowpageup
}
2219 This is just a wrapper for
\helpref{ScrollPages()
}{wxwindowscrollpages
}$(-
1)$.
2222 \membersection{wxWindow::PopEventHandler
}\label{wxwindowpopeventhandler
}
2224 \constfunc{wxEvtHandler*
}{PopEventHandler
}{\param{bool
}{deleteHandler =
{\tt false
}}}
2226 Removes and returns the top-most event handler on the event handler stack.
2228 \wxheading{Parameters
}
2230 \docparam{deleteHandler
}{If this is
{\tt true
}, the handler will be deleted after it is removed. The
2231 default value is
{\tt false
}.
}
2233 \wxheading{See also
}
2235 \helpref{wxWindow::SetEventHandler
}{wxwindowseteventhandler
},
\rtfsp
2236 \helpref{wxWindow::GetEventHandler
}{wxwindowgeteventhandler
},
\rtfsp
2237 \helpref{wxWindow::PushEventHandler
}{wxwindowpusheventhandler
},
\rtfsp
2238 \helpref{wxEvtHandler::ProcessEvent
}{wxevthandlerprocessevent
},
\rtfsp
2239 \helpref{wxEvtHandler
}{wxevthandler
}\rtfsp
2242 \membersection{wxWindow::PopupMenu
}\label{wxwindowpopupmenu
}
2244 \func{bool
}{PopupMenu
}{\param{wxMenu*
}{menu
},
\param{const wxPoint\&
}{pos = wxDefaultPosition
}}
2246 \func{bool
}{PopupMenu
}{\param{wxMenu*
}{menu
},
\param{int
}{x
},
\param{int
}{y
}}
2248 Pops up the given menu at the specified coordinates, relative to this
2249 window, and returns control when the user has dismissed the menu. If a
2250 menu item is selected, the corresponding menu event is generated and will be
2251 processed as usually. If the coordinates are not specified, current mouse
2252 cursor position is used.
2254 \wxheading{Parameters
}
2256 \docparam{menu
}{Menu to pop up.
}
2258 \docparam{pos
}{The position where the menu will appear.
}
2260 \docparam{x
}{Required x position for the menu to appear.
}
2262 \docparam{y
}{Required y position for the menu to appear.
}
2264 \wxheading{See also
}
2266 \helpref{wxMenu
}{wxmenu
}
2270 Just before the menu is popped up,
\helpref{wxMenu::UpdateUI
}{wxmenuupdateui
}
2271 is called to ensure that the menu items are in the correct state. The menu does
2272 not get deleted by the window.
2274 It is recommended to not explicitly specify coordinates when calling PopupMenu
2275 in response to mouse click, because some of the ports (namely, wxGTK) can do
2276 a better job of positioning the menu in that case.
2278 \pythonnote{In place of a single overloaded method name, wxPython
2279 implements the following methods:
\par
2280 \indented{2cm
}{\begin{twocollist
}
2281 \twocolitem{{\bf PopupMenu(menu, point)
}}{Specifies position with a wxPoint
}
2282 \twocolitem{{\bf PopupMenuXY(menu, x, y)
}}{Specifies position with two integers (x, y)
}
2287 \membersection{wxWindow::PushEventHandler
}\label{wxwindowpusheventhandler
}
2289 \func{void
}{PushEventHandler
}{\param{wxEvtHandler*
}{handler
}}
2291 Pushes this event handler onto the event stack for the window.
2293 \wxheading{Parameters
}
2295 \docparam{handler
}{Specifies the handler to be pushed.
}
2299 An event handler is an object that is capable of processing the events
2300 sent to a window. By default, the window is its own event handler, but
2301 an application may wish to substitute another, for example to allow
2302 central implementation of event-handling for a variety of different
2305 \helpref{wxWindow::PushEventHandler
}{wxwindowpusheventhandler
} allows
2306 an application to set up a chain of event handlers, where an event not handled by one event handler is
2307 handed to the next one in the chain. Use
\helpref{wxWindow::PopEventHandler
}{wxwindowpopeventhandler
} to
2308 remove the event handler.
2310 \wxheading{See also
}
2312 \helpref{wxWindow::SetEventHandler
}{wxwindowseteventhandler
},
\rtfsp
2313 \helpref{wxWindow::GetEventHandler
}{wxwindowgeteventhandler
},
\rtfsp
2314 \helpref{wxWindow::PopEventHandler
}{wxwindowpusheventhandler
},
\rtfsp
2315 \helpref{wxEvtHandler::ProcessEvent
}{wxevthandlerprocessevent
},
\rtfsp
2316 \helpref{wxEvtHandler
}{wxevthandler
}
2319 \membersection{wxWindow::Raise
}\label{wxwindowraise
}
2321 \func{void
}{Raise
}{\void}
2323 Raises the window to the top of the window hierarchy (z-order).
2325 In current version of wxWidgets this works both for managed and child windows.
2327 \wxheading{See also
}
2329 \helpref{Lower
}{wxwindowlower
}
2332 \membersection{wxWindow::Refresh
}\label{wxwindowrefresh
}
2334 \func{virtual void
}{Refresh
}{\param{bool
}{ eraseBackground =
{\tt true
}},
\param{const wxRect*
}{rect = NULL
}}
2336 Causes this window, and all of its children recursively (except under wxGTK1
2337 where this is not implemented), to be repainted. Note that repainting doesn't
2338 happen immediately but only during the next event loop iteration, if you need
2339 to update the window immediately you should use
\helpref{Update
}{wxwindowupdate
}
2342 \wxheading{Parameters
}
2344 \docparam{eraseBackground
}{If
{\tt true
}, the background will be
2347 \docparam{rect
}{If non-NULL, only the given rectangle will
2348 be treated as damaged.
}
2350 \wxheading{See also
}
2352 \helpref{wxWindow::RefreshRect
}{wxwindowrefreshrect
}
2355 \membersection{wxWindow::RefreshRect
}\label{wxwindowrefreshrect
}
2357 \func{void
}{RefreshRect
}{\param{const wxRect\&
}{rect
},
\param{bool
}{eraseBackground =
\true}}
2359 Redraws the contents of the given rectangle: only the area inside it will be
2362 This is the same as
\helpref{Refresh
}{wxwindowrefresh
} but has a nicer syntax
2363 as it can be called with a temporary wxRect object as argument like this
2364 \texttt{RefreshRect(wxRect(x, y, w, h))
}.
2367 \membersection{wxWindow::RegisterHotKey
}\label{wxwindowregisterhotkey
}
2369 \func{bool
}{RegisterHotKey
}{\param{int
}{ hotkeyId
},
\param{int
}{ modifiers
},
\param{int
}{ virtualKeyCode
}}
2371 Registers a system wide hotkey. Every time the user presses the hotkey registered here, this window
2372 will receive a hotkey event. It will receive the event even if the application is in the background
2373 and does not have the input focus because the user is working with some other application.
2375 \wxheading{Parameters
}
2377 \docparam{hotkeyId
}{Numeric identifier of the hotkey. For applications this must be between
0 and
0xBFFF. If
2378 this function is called from a shared DLL, it must be a system wide unique identifier between
0xC000 and
0xFFFF.
2379 This is a MSW specific detail.
}
2381 \docparam{modifiers
}{A bitwise combination of
{\tt wxMOD
\_SHIFT},
{\tt wxMOD
\_CONTROL},
{\tt wxMOD
\_ALT}
2382 or
{\tt wxMOD
\_WIN} specifying the modifier keys that have to be pressed along with the key.
}
2384 \docparam{virtualKeyCode
}{The virtual key code of the hotkey.
}
2386 \wxheading{Return value
}
2388 {\tt true
} if the hotkey was registered successfully.
{\tt false
} if some other application already registered a
2389 hotkey with this modifier/virtualKeyCode combination.
2393 Use EVT
\_HOTKEY(hotkeyId, fnc) in the event table to capture the event.
2394 This function is currently only implemented under Windows. It is used
2395 in the
\helpref{Windows CE port
}{wxwince
} for detecting hardware button presses.
2397 \wxheading{See also
}
2399 \helpref{wxWindow::UnregisterHotKey
}{wxwindowunregisterhotkey
}
2402 \membersection{wxWindow::ReleaseMouse
}\label{wxwindowreleasemouse
}
2404 \func{virtual void
}{ReleaseMouse
}{\void}
2406 Releases mouse input captured with
\helpref{wxWindow::CaptureMouse
}{wxwindowcapturemouse
}.
2408 \wxheading{See also
}
2410 \helpref{wxWindow::CaptureMouse
}{wxwindowcapturemouse
},
2411 \helpref{wxWindow::HasCapture
}{wxwindowhascapture
},
2412 \helpref{wxWindow::ReleaseMouse
}{wxwindowreleasemouse
},
2413 \helpref{wxMouseCaptureLostEvent
}{wxmousecapturelostevent
}
2414 \helpref{wxMouseCaptureChangedEvent
}{wxmousecapturechangedevent
}
2417 \membersection{wxWindow::RemoveChild
}\label{wxwindowremovechild
}
2419 \func{virtual void
}{RemoveChild
}{\param{wxWindow*
}{child
}}
2421 Removes a child window. This is called automatically by window deletion
2422 functions so should not be required by the application programmer.
2424 Notice that this function is mostly internal to wxWidgets and shouldn't be
2425 called by the user code.
2427 \wxheading{Parameters
}
2429 \docparam{child
}{Child window to remove.
}
2432 \membersection{wxWindow::RemoveEventHandler
}\label{wxwindowremoveeventhandler
}
2434 \func{bool
}{RemoveEventHandler
}{\param{wxEvtHandler *
}{handler
}}
2436 Find the given
{\it handler
} in the windows event handler chain and remove (but
2437 not delete) it from it.
2439 \wxheading{Parameters
}
2441 \docparam{handler
}{The event handler to remove, must be non-
{\tt NULL
} and
2442 must be present in this windows event handlers chain
}
2444 \wxheading{Return value
}
2446 Returns
{\tt true
} if it was found and
{\tt false
} otherwise (this also results
2447 in an assert failure so this function should only be called when the
2448 handler is supposed to be there).
2450 \wxheading{See also
}
2452 \helpref{PushEventHandler
}{wxwindowpusheventhandler
},
\rtfsp
2453 \helpref{PopEventHandler
}{wxwindowpopeventhandler
}
2456 \membersection{wxWindow::Reparent
}\label{wxwindowreparent
}
2458 \func{virtual bool
}{Reparent
}{\param{wxWindow*
}{newParent
}}
2460 Reparents the window, i.e the window will be removed from its
2461 current parent window (e.g. a non-standard toolbar in a wxFrame)
2462 and then re-inserted into another.
2464 \wxheading{Parameters
}
2466 \docparam{newParent
}{New parent.
}
2469 \membersection{wxWindow::ScreenToClient
}\label{wxwindowscreentoclient
}
2471 \constfunc{virtual void
}{ScreenToClient
}{\param{int*
}{x
},
\param{int*
}{y
}}
2473 \constfunc{virtual wxPoint
}{ScreenToClient
}{\param{const wxPoint\&
}{pt
}}
2475 Converts from screen to client window coordinates.
2477 \wxheading{Parameters
}
2479 \docparam{x
}{Stores the screen x coordinate and receives the client x coordinate.
}
2481 \docparam{y
}{Stores the screen x coordinate and receives the client x coordinate.
}
2483 \docparam{pt
}{The screen position for the second form of the function.
}
2485 \pythonnote{In place of a single overloaded method name, wxPython
2486 implements the following methods:
\par
2487 \indented{2cm
}{\begin{twocollist
}
2488 \twocolitem{{\bf ScreenToClient(point)
}}{Accepts and returns a wxPoint
}
2489 \twocolitem{{\bf ScreenToClientXY(x, y)
}}{Returns a
2-tuple, (x, y)
}
2494 \membersection{wxWindow::ScrollLines
}\label{wxwindowscrolllines
}
2496 \func{virtual bool
}{ScrollLines
}{\param{int
}{lines
}}
2498 Scrolls the window by the given number of lines down (if
{\it lines
} is
2501 \wxheading{Return value
}
2503 Returns
{\tt true
} if the window was scrolled,
{\tt false
} if it was already
2504 on top/bottom and nothing was done.
2508 This function is currently only implemented under MSW and wxTextCtrl under
2509 wxGTK (it also works for wxScrolledWindow derived classes under all
2512 \wxheading{See also
}
2514 \helpref{ScrollPages
}{wxwindowscrollpages
}
2517 \membersection{wxWindow::ScrollPages
}\label{wxwindowscrollpages
}
2519 \func{virtual bool
}{ScrollPages
}{\param{int
}{pages
}}
2521 Scrolls the window by the given number of pages down (if
{\it pages
} is
2524 \wxheading{Return value
}
2526 Returns
{\tt true
} if the window was scrolled,
{\tt false
} if it was already
2527 on top/bottom and nothing was done.
2531 This function is currently only implemented under MSW and wxGTK.
2533 \wxheading{See also
}
2535 \helpref{ScrollLines
}{wxwindowscrolllines
}
2538 \membersection{wxWindow::ScrollWindow
}\label{wxwindowscrollwindow
}
2540 \func{virtual void
}{ScrollWindow
}{\param{int
}{dx
},
\param{int
}{dy
},
\param{const wxRect*
}{ rect = NULL
}}
2542 Physically scrolls the pixels in the window and move child windows accordingly.
2544 \wxheading{Parameters
}
2546 \docparam{dx
}{Amount to scroll horizontally.
}
2548 \docparam{dy
}{Amount to scroll vertically.
}
2550 \docparam{rect
}{Rectangle to scroll, if it is
\NULL, the whole window is
2551 scrolled (this is always the case under wxGTK which doesn't support this
2556 Note that you can often use
\helpref{wxScrolledWindow
}{wxscrolledwindow
}
2557 instead of using this function directly.
2560 \membersection{wxWindow::SetAcceleratorTable
}\label{wxwindowsetacceleratortable
}
2562 \func{virtual void
}{SetAcceleratorTable
}{\param{const wxAcceleratorTable\&
}{ accel
}}
2564 Sets the accelerator table for this window. See
\helpref{wxAcceleratorTable
}{wxacceleratortable
}.
2567 \membersection{wxWindow::SetAccessible
}\label{wxwindowsetaccessible
}
2569 \func{void
}{SetAccessible
}{\param{wxAccessible*
}{ accessible
}}
2571 Sets the accessible for this window. Any existing accessible for this window
2572 will be deleted first, if not identical to
{\it accessible
}.
2574 See also
\helpref{wxAccessible
}{wxaccessible
}.
2577 \membersection{wxWindow::SetAutoLayout
}\label{wxwindowsetautolayout
}
2579 \func{void
}{SetAutoLayout
}{\param{bool
}{ autoLayout
}}
2581 Determines whether the
\helpref{wxWindow::Layout
}{wxwindowlayout
} function will
2582 be called automatically when the window is resized. Please note that this only
2583 happens for the windows usually used to contain children, namely
2584 \helpref{wxPanel
}{wxpanel
} and
\helpref{wxTopLevelWindow
}{wxtoplevelwindow
}
2585 (and the classes deriving from them).
2587 This method is called implicitly by
2588 \helpref{wxWindow::SetSizer
}{wxwindowsetsizer
} but if you use
2589 \helpref{wxWindow::SetConstraints
}{wxwindowsetconstraints
} you should call it
2590 manually or otherwise the window layout won't be correctly updated when its
2593 \wxheading{Parameters
}
2595 \docparam{autoLayout
}{Set this to
\true if you wish the Layout function to be
2596 called automatically when the window is resized.
}
2598 \wxheading{See also
}
2600 \helpref{wxWindow::SetConstraints
}{wxwindowsetconstraints
}
2603 \membersection{wxWindow::SetBackgroundColour
}\label{wxwindowsetbackgroundcolour
}
2605 \func{virtual bool
}{SetBackgroundColour
}{\param{const wxColour\&
}{colour
}}
2607 Sets the background colour of the window.
2609 Please see
\helpref{InheritAttributes
}{wxwindowinheritattributes
} for
2610 explanation of the difference between this method and
2611 \helpref{SetOwnBackgroundColour
}{wxwindowsetownbackgroundcolour
}.
2613 \wxheading{Parameters
}
2615 \docparam{colour
}{The colour to be used as the background colour, pass
2616 {\tt wxNullColour
} to reset to the default colour.
}
2620 The background colour is usually painted by the default
\rtfsp
2621 \helpref{wxEraseEvent
}{wxeraseevent
} event handler function
2622 under Windows and automatically under GTK.
2624 Note that setting the background colour does not cause an immediate refresh, so you
2625 may wish to call
\helpref{wxWindow::ClearBackground
}{wxwindowclearbackground
} or
\helpref{wxWindow::Refresh
}{wxwindowrefresh
} after
2626 calling this function.
2628 Using this function will disable attempts to use themes for this
2629 window, if the system supports them. Use with care since usually the
2630 themes represent the appearance chosen by the user to be used for all
2631 applications on the system.
2634 \wxheading{See also
}
2636 \helpref{wxWindow::GetBackgroundColour
}{wxwindowgetbackgroundcolour
},
\rtfsp
2637 \helpref{wxWindow::SetForegroundColour
}{wxwindowsetforegroundcolour
},
\rtfsp
2638 \helpref{wxWindow::GetForegroundColour
}{wxwindowgetforegroundcolour
},
\rtfsp
2639 \helpref{wxWindow::ClearBackground
}{wxwindowclearbackground
},
\rtfsp
2640 \helpref{wxWindow::Refresh
}{wxwindowrefresh
},
\rtfsp
2641 \helpref{wxEraseEvent
}{wxeraseevent
}
2643 \membersection{wxWindow::SetBackgroundStyle
}\label{wxwindowsetbackgroundstyle
}
2645 \func{virtual void
}{SetBackgroundStyle
}{\param{wxBackgroundStyle
}{ style
}}
2647 Sets the background style of the window. The background style indicates
2648 whether background colour should be determined by the system (wxBG
\_STYLE\_SYSTEM),
2649 be set to a specific colour (wxBG
\_STYLE\_COLOUR), or should be left to the
2650 application to implement (wxBG
\_STYLE\_CUSTOM).
2652 On GTK+, use of wxBG
\_STYLE\_CUSTOM allows the flicker-free drawing of a custom
2653 background, such as a tiled bitmap. Currently the style has no effect on other platforms.
2655 \wxheading{See also
}
2657 \helpref{wxWindow::SetBackgroundColour
}{wxwindowsetbackgroundcolour
},
\rtfsp
2658 \helpref{wxWindow::GetForegroundColour
}{wxwindowgetforegroundcolour
},
\rtfsp
2659 \helpref{wxWindow::GetBackgroundStyle
}{wxwindowgetbackgroundstyle
}
2662 \membersection{wxWindow::SetBestFittingSize
}\label{wxwindowsetbestfittingsize
}
2664 \func{void
}{SetBestFittingSize
}{\param{const wxSize\&
}{size = wxDefaultSize
}}
2666 A
{\it smart
} SetSize that will fill in default size components with the
2667 window's
{\it best
} size values. Also sets the window's minsize to
2668 the value passed in for use with sizers. This means that if a full or
2669 partial size is passed to this function then the sizers will use that
2670 size instead of the results of GetBestSize to determine the minimum
2671 needs of the window for layout.
2673 \wxheading{See also
}
2675 \helpref{wxWindow::SetSize
}{wxwindowsetsize
},
\rtfsp
2676 \helpref{wxWindow::GetBestSize
}{wxwindowgetbestsize
},
\rtfsp
2677 \helpref{wxWindow::GetBestFittingSize
}{wxwindowgetbestfittingsize
}
2680 \membersection{wxWindow::SetCaret
}\label{wxwindowsetcaret
}
2682 \constfunc{void
}{SetCaret
}{\param{wxCaret *
}{caret
}}
2684 Sets the
\helpref{caret
}{wxcaret
} associated with the window.
2687 \membersection{wxWindow::SetClientSize
}\label{wxwindowsetclientsize
}
2689 \func{virtual void
}{SetClientSize
}{\param{int
}{ width
},
\param{int
}{ height
}}
2691 \func{virtual void
}{SetClientSize
}{\param{const wxSize\&
}{ size
}}
2693 This sets the size of the window client area in pixels. Using this function to size a window
2694 tends to be more device-independent than
\helpref{wxWindow::SetSize
}{wxwindowsetsize
}, since the application need not
2695 worry about what dimensions the border or title bar have when trying to fit the window
2696 around panel items, for example.
2698 \wxheading{Parameters
}
2700 \docparam{width
}{The required client area width.
}
2702 \docparam{height
}{The required client area height.
}
2704 \docparam{size
}{The required client size.
}
2706 \pythonnote{In place of a single overloaded method name, wxPython
2707 implements the following methods:
\par
2708 \indented{2cm
}{\begin{twocollist
}
2709 \twocolitem{{\bf SetClientSize(size)
}}{Accepts a wxSize
}
2710 \twocolitem{{\bf SetClientSizeWH(width, height)
}}{}
2715 \membersection{wxWindow::SetConstraints
}\label{wxwindowsetconstraints
}
2717 \func{void
}{SetConstraints
}{\param{wxLayoutConstraints*
}{constraints
}}
2719 Sets the window to have the given layout constraints. The window
2720 will then own the object, and will take care of its deletion.
2721 If an existing layout constraints object is already owned by the
2722 window, it will be deleted.
2724 \wxheading{Parameters
}
2726 \docparam{constraints
}{The constraints to set. Pass NULL to disassociate and delete the window's
2731 You must call
\helpref{wxWindow::SetAutoLayout
}{wxwindowsetautolayout
} to tell a window to use
2732 the constraints automatically in OnSize; otherwise, you must override OnSize and call Layout()
2733 explicitly. When setting both a wxLayoutConstraints and a
\helpref{wxSizer
}{wxsizer
}, only the
2734 sizer will have effect.
2736 \membersection{wxWindow::SetContainingSizer
}\label{wxwindowsetcontainingsizer
}
2738 \func{void
}{SetContainingSizer
}{\param{wxSizer*
}{sizer
}}
2740 This normally does not need to be called by user code. It is called
2741 when a window is added to a sizer, and is used so the window can
2742 remove itself from the sizer when it is destroyed.
2745 \membersection{wxWindow::SetCursor
}\label{wxwindowsetcursor
}
2747 \func{virtual void
}{SetCursor
}{\param{const wxCursor\&
}{cursor
}}
2749 % VZ: the docs are correct, if the code doesn't behave like this, it must be
2751 Sets the window's cursor. Notice that the window cursor also sets it for the
2752 children of the window implicitly.
2754 The
{\it cursor
} may be
{\tt wxNullCursor
} in which case the window cursor will
2755 be reset back to default.
2757 \wxheading{Parameters
}
2759 \docparam{cursor
}{Specifies the cursor that the window should normally display.
}
2761 \wxheading{See also
}
2763 \helpref{::wxSetCursor
}{wxsetcursor
},
\helpref{wxCursor
}{wxcursor
}
2766 \membersection{wxWindow::SetDropTarget
}\label{wxwindowsetdroptarget
}
2768 \func{void
}{SetDropTarget
}{\param{wxDropTarget*
}{ target
}}
2770 Associates a drop target with this window.
2772 If the window already has a drop target, it is deleted.
2774 \wxheading{See also
}
2776 \helpref{wxWindow::GetDropTarget
}{wxwindowgetdroptarget
},
2777 \helpref{Drag and drop overview
}{wxdndoverview
}
2781 \membersection{wxWindow::SetInitialBestSize
}\label{wxwindowsetinitialbestsize
}
2783 \func{virtual void
}{SetInitialBestSize
}{\param{const wxSize\&
}{size
}}
2785 Sets the initial window size if none is given (i.e. at least one of the
2786 components of the size passed to ctor/Create() is wxDefaultCoord).
2788 \membersection{wxWindow::SetEventHandler
}\label{wxwindowseteventhandler
}
2790 \func{void
}{SetEventHandler
}{\param{wxEvtHandler*
}{handler
}}
2792 Sets the event handler for this window.
2794 \wxheading{Parameters
}
2796 \docparam{handler
}{Specifies the handler to be set.
}
2800 An event handler is an object that is capable of processing the events
2801 sent to a window. By default, the window is its own event handler, but
2802 an application may wish to substitute another, for example to allow
2803 central implementation of event-handling for a variety of different
2806 It is usually better to use
\helpref{wxWindow::PushEventHandler
}{wxwindowpusheventhandler
} since
2807 this sets up a chain of event handlers, where an event not handled by one event handler is
2808 handed to the next one in the chain.
2810 \wxheading{See also
}
2812 \helpref{wxWindow::GetEventHandler
}{wxwindowgeteventhandler
},
\rtfsp
2813 \helpref{wxWindow::PushEventHandler
}{wxwindowpusheventhandler
},
\rtfsp
2814 \helpref{wxWindow::PopEventHandler
}{wxwindowpusheventhandler
},
\rtfsp
2815 \helpref{wxEvtHandler::ProcessEvent
}{wxevthandlerprocessevent
},
\rtfsp
2816 \helpref{wxEvtHandler
}{wxevthandler
}
2819 \membersection{wxWindow::SetExtraStyle
}\label{wxwindowsetextrastyle
}
2821 \func{void
}{SetExtraStyle
}{\param{long
}{exStyle
}}
2823 Sets the extra style bits for the window. The currently defined extra style
2827 \begin{twocollist
}\itemsep=
0pt
2828 \twocolitem{\windowstyle{wxWS
\_EX\_VALIDATE\_RECURSIVELY}}{TransferDataTo/FromWindow()
2829 and Validate() methods will recursively descend into all children of the
2830 window if it has this style flag set.
}
2831 \twocolitem{\windowstyle{wxWS
\_EX\_BLOCK\_EVENTS}}{Normally, the command
2832 events are propagated upwards to the window parent recursively until a handler
2833 for them is found. Using this style allows to prevent them from being
2834 propagated beyond this window. Notice that wxDialog has this style on by
2835 default for the reasons explained in the
2836 \helpref{event processing overview
}{eventprocessing
}.
}
2837 \twocolitem{\windowstyle{wxWS
\_EX\_TRANSIENT}}{This can be used to prevent a
2838 window from being used as an implicit parent for the dialogs which were
2839 created without a parent. It is useful for the windows which can disappear at
2840 any moment as creating children of such windows results in fatal problems.
}
2841 \twocolitem{\windowstyle{wxWS
\_EX\_CONTEXTHELP}}{Under Windows, puts a query
2842 button on the caption. When pressed, Windows will go into a context-sensitive
2843 help mode and wxWidgets will send a wxEVT
\_HELP event if the user clicked on an
2845 This style cannot be used together with wxMAXIMIZE
\_BOX or wxMINIMIZE
\_BOX, so
2846 these two styles are automatically turned of if this one is used.
}
2847 \twocolitem{\windowstyle{wxWS
\_EX\_PROCESS\_IDLE}}{This window should always process idle events, even
2848 if the mode set by
\helpref{wxIdleEvent::SetMode
}{wxidleeventsetmode
} is wxIDLE
\_PROCESS\_SPECIFIED.
}
2849 \twocolitem{\windowstyle{wxWS
\_EX\_PROCESS\_UI\_UPDATES}}{This window should always process UI update events,
2850 even if the mode set by
\helpref{wxUpdateUIEvent::SetMode
}{wxupdateuieventsetmode
} is wxUPDATE
\_UI\_PROCESS\_SPECIFIED.
}
2854 \membersection{wxWindow::SetFocus
}\label{wxwindowsetfocus
}
2856 \func{virtual void
}{SetFocus
}{\void}
2858 This sets the window to receive keyboard input.
2860 \wxheading{See also
}
2862 \helpref{wxFocusEvent
}{wxfocusevent
}
2863 \helpref{wxPanel::SetFocus
}{wxpanelsetfocus
}
2864 \helpref{wxPanel::SetFocusIgnoringChildren
}{wxpanelsetfocusignoringchildren
}
2867 \membersection{wxWindow::SetFocusFromKbd
}\label{wxwindowsetfocusfromkbd
}
2869 \func{virtual void
}{SetFocusFromKbd
}{\void}
2871 This function is called by wxWidgets keyboard navigation code when the user
2872 gives the focus to this window from keyboard (e.g. using
{\tt TAB
} key).
2873 By default this method simply calls
\helpref{SetFocus
}{wxwindowsetfocus
} but
2874 can be overridden to do something in addition to this in the derived classes.
2877 \membersection{wxWindow::SetFont
}\label{wxwindowsetfont
}
2879 \func{void
}{SetFont
}{\param{const wxFont\&
}{font
}}
2881 Sets the font for this window. This function should not be called for the
2882 parent window if you don't want its font to be inherited by its children,
2883 use
\helpref{SetOwnFont
}{wxwindowsetownfont
} instead in this case and
2884 see
\helpref{InheritAttributes
}{wxwindowinheritattributes
} for more
2887 Please notice that the given font is
\emph{not
} automatically used for
2888 \helpref{wxPaintDC
}{wxpaintdc
} objects associated with this window, you need to
2889 call
\helpref{wxDC::SetFont()
}{wxdcsetfont
} too. However this font is used by
2890 any standard controls for drawing their text as well as by
2891 \helpref{wxWindow::GetTextExtent()
}{wxwindowgettextextent
}.
2893 \wxheading{Parameters
}
2895 \docparam{font
}{Font to associate with this window, pass
2896 {\tt wxNullFont
} to reset to the default font.
}
2898 \wxheading{See also
}
2900 \helpref{wxWindow::GetFont
}{wxwindowgetfont
},\\
2901 \helpref{InheritAttributes
}{wxwindowinheritattributes
}
2904 \membersection{wxWindow::SetForegroundColour
}\label{wxwindowsetforegroundcolour
}
2906 \func{virtual void
}{SetForegroundColour
}{\param{const wxColour\&
}{colour
}}
2908 Sets the foreground colour of the window.
2910 Please see
\helpref{InheritAttributes
}{wxwindowinheritattributes
} for
2911 explanation of the difference between this method and
2912 \helpref{SetOwnForegroundColour
}{wxwindowsetownforegroundcolour
}.
2914 \wxheading{Parameters
}
2916 \docparam{colour
}{The colour to be used as the foreground colour, pass
2917 {\tt wxNullColour
} to reset to the default colour.
}
2921 The interpretation of foreground colour is open to interpretation according
2922 to the window class; it may be the text colour or other colour, or it may not
2925 Using this function will disable attempts to use themes for this
2926 window, if the system supports them. Use with care since usually the
2927 themes represent the appearance chosen by the user to be used for all
2928 applications on the system.
2930 \wxheading{See also
}
2932 \helpref{wxWindow::GetForegroundColour
}{wxwindowgetforegroundcolour
},
\rtfsp
2933 \helpref{wxWindow::SetBackgroundColour
}{wxwindowsetbackgroundcolour
},
\rtfsp
2934 \helpref{wxWindow::GetBackgroundColour
}{wxwindowgetbackgroundcolour
},
\rtfsp
2935 \helpref{wxWindow::ShouldInheritColours
}{wxwindowshouldinheritcolours
}
2938 \membersection{wxWindow::SetHelpText
}\label{wxwindowsethelptext
}
2940 \func{virtual void
}{SetHelpText
}{\param{const wxString\&
}{helpText
}}
2942 Sets the help text to be used as context-sensitive help for this window.
2944 Note that the text is actually stored by the current
\helpref{wxHelpProvider
}{wxhelpprovider
} implementation,
2945 and not in the window object itself.
2947 \wxheading{See also
}
2949 \helpref{GetHelpText
}{wxwindowgethelptext
},
\helpref{wxHelpProvider
}{wxhelpprovider
}
2952 \membersection{wxWindow::SetId
}\label{wxwindowsetid
}
2954 \func{void
}{SetId
}{\param{int
}{ id
}}
2956 Sets the identifier of the window.
2960 Each window has an integer identifier. If the application has not provided one,
2961 an identifier will be generated. Normally, the identifier should be provided
2962 on creation and should not be modified subsequently.
2964 \wxheading{See also
}
2966 \helpref{wxWindow::GetId
}{wxwindowgetid
},
\rtfsp
2967 \helpref{Window identifiers
}{windowids
}
2971 \membersection{wxWindow::SetLabel
}\label{wxwindowsetlabel
}
2973 \func{virtual void
}{SetLabel
}{\param{const wxString\&
}{label
}}
2975 Sets the window's label.
2977 \wxheading{Parameters
}
2979 \docparam{label
}{The window label.
}
2981 \wxheading{See also
}
2983 \helpref{wxWindow::GetLabel
}{wxwindowgetlabel
}
2986 \membersection{wxWindow::SetMaxSize
}\label{wxwindowsetmaxsize
}
2988 \func{void
}{SetMaxSize
}{\param{const wxSize\&
}{size
}}
2990 Sets the maximum size of the window, to indicate to the sizer layout mechanism
2991 that this is the maximum possible size.
2993 \membersection{wxWindow::SetMinSize
}\label{wxwindowsetminsize
}
2995 \func{void
}{SetMinSize
}{\param{const wxSize\&
}{size
}}
2997 Sets the minimum size of the window, to indicate to the sizer layout mechanism
2998 that this is the minimum required size. You may need to call this
2999 if you change the window size after construction and before adding
3000 to its parent sizer.
3002 \membersection{wxWindow::SetName
}\label{wxwindowsetname
}
3004 \func{virtual void
}{SetName
}{\param{const wxString\&
}{name
}}
3006 Sets the window's name.
3008 \wxheading{Parameters
}
3010 \docparam{name
}{A name to set for the window.
}
3012 \wxheading{See also
}
3014 \helpref{wxWindow::GetName
}{wxwindowgetname
}
3017 \membersection{wxWindow::SetOwnBackgroundColour
}\label{wxwindowsetownbackgroundcolour
}
3019 \func{void
}{SetOwnBackgroundColour
}{\param{const wxColour\&
}{colour
}}
3021 Sets the background colour of the window but prevents it from being inherited
3022 by the children of this window.
3024 \wxheading{See also
}
3026 \helpref{SetBackgroundColour
}{wxwindowsetbackgroundcolour
},
\rtfsp
3027 \helpref{InheritAttributes
}{wxwindowinheritattributes
}
3030 \membersection{wxWindow::SetOwnFont
}\label{wxwindowsetownfont
}
3032 \func{void
}{SetOwnFont
}{\param{const wxFont\&
}{font
}}
3034 Sets the font of the window but prevents it from being inherited by the
3035 children of this window.
3037 \wxheading{See also
}
3039 \helpref{SetFont
}{wxwindowsetfont
},
\rtfsp
3040 \helpref{InheritAttributes
}{wxwindowinheritattributes
}
3043 \membersection{wxWindow::SetOwnForegroundColour
}\label{wxwindowsetownforegroundcolour
}
3045 \func{void
}{SetOwnForegroundColour
}{\param{const wxColour\&
}{colour
}}
3047 Sets the foreground colour of the window but prevents it from being inherited
3048 by the children of this window.
3050 \wxheading{See also
}
3052 \helpref{SetForegroundColour
}{wxwindowsetforegroundcolour
},
\rtfsp
3053 \helpref{InheritAttributes
}{wxwindowinheritattributes
}
3056 \membersection{wxWindow::SetPalette
}\label{wxwindowsetpalette
}
3058 \func{virtual void
}{SetPalette
}{\param{wxPalette*
}{palette
}}
3060 Obsolete - use
\helpref{wxDC::SetPalette
}{wxdcsetpalette
} instead.
3063 \membersection{wxWindow::SetScrollbar
}\label{wxwindowsetscrollbar
}
3065 \func{virtual void
}{SetScrollbar
}{\param{int
}{orientation
},
\param{int
}{position
},
\rtfsp
3066 \param{int
}{thumbSize
},
\param{int
}{range
},
\rtfsp
3067 \param{bool
}{refresh =
{\tt true
}}}
3069 Sets the scrollbar properties of a built-in scrollbar.
3071 \wxheading{Parameters
}
3073 \docparam{orientation
}{Determines the scrollbar whose page size is to be set. May be wxHORIZONTAL or wxVERTICAL.
}
3075 \docparam{position
}{The position of the scrollbar in scroll units.
}
3077 \docparam{thumbSize
}{The size of the thumb, or visible portion of the scrollbar, in scroll units.
}
3079 \docparam{range
}{The maximum position of the scrollbar.
}
3081 \docparam{refresh
}{{\tt true
} to redraw the scrollbar,
{\tt false
} otherwise.
}
3085 Let's say you wish to display
50 lines of text, using the same font.
3086 The window is sized so that you can only see
16 lines at a time.
3092 SetScrollbar(wxVERTICAL,
0,
16,
50);
3096 Note that with the window at this size, the thumb position can never go
3097 above
50 minus
16, or
34.
3099 You can determine how many lines are currently visible by dividing the current view
3100 size by the character height in pixels.
3102 When defining your own scrollbar behaviour, you will always need to recalculate
3103 the scrollbar settings when the window size changes. You could therefore put your
3104 scrollbar calculations and SetScrollbar
3105 call into a function named AdjustScrollbars, which can be called initially and also
3106 from your
\helpref{wxSizeEvent
}{wxsizeevent
} handler function.
3108 \wxheading{See also
}
3110 \helpref{Scrolling overview
}{scrollingoverview
},
\rtfsp
3111 \helpref{wxScrollBar
}{wxscrollbar
},
\helpref{wxScrolledWindow
}{wxscrolledwindow
},
\rtfsp
3112 \helpref{wxScrollWinEvent
}{wxscrollwinevent
}
3117 \membersection{wxWindow::SetScrollPage
}\label{wxwindowsetscrollpage
}
3119 \func{virtual void
}{SetScrollPage
}{\param{int
}{orientation
},
\param{int
}{pageSize
},
\param{bool
}{refresh =
{\tt true
}}}
3121 Sets the page size of one of the built-in scrollbars.
3123 \wxheading{Parameters
}
3125 \docparam{orientation
}{Determines the scrollbar whose page size is to be set. May be wxHORIZONTAL or wxVERTICAL.
}
3127 \docparam{pageSize
}{Page size in scroll units.
}
3129 \docparam{refresh
}{{\tt true
} to redraw the scrollbar,
{\tt false
} otherwise.
}
3133 The page size of a scrollbar is the number of scroll units that the scroll thumb travels when you
3134 click on the area above/left of or below/right of the thumb. Normally you will want a whole visible
3135 page to be scrolled, i.e. the size of the current view (perhaps the window client size). This
3136 value has to be adjusted when the window is resized, since the page size will have changed.
3138 In addition to specifying how far the scroll thumb travels when paging, in Motif and some versions of Windows
3139 the thumb changes size to reflect the page size relative to the length of the
document. When the
3140 document size is only slightly bigger than the current view (window) size, almost all of the scrollbar
3141 will be taken up by the thumb. When the two values become the same, the scrollbar will (on some systems)
3144 Currently, this function should be called before SetPageRange, because of a quirk in the Windows
3145 handling of pages and ranges.
3147 \wxheading{See also
}
3149 \helpref{wxWindow::SetScrollPos
}{wxwindowsetscrollpos
},
\rtfsp
3150 \helpref{wxWindow::GetScrollPos
}{wxwindowgetscrollpos
},
\rtfsp
3151 \helpref{wxWindow::GetScrollPage
}{wxwindowgetscrollpage
},
\rtfsp
3152 \helpref{wxScrollBar
}{wxscrollbar
},
\helpref{wxScrolledWindow
}{wxscrolledwindow
}
3156 \membersection{wxWindow::SetScrollPos
}\label{wxwindowsetscrollpos
}
3158 \func{virtual void
}{SetScrollPos
}{\param{int
}{orientation
},
\param{int
}{pos
},
\param{bool
}{refresh =
{\tt true
}}}
3160 Sets the position of one of the built-in scrollbars.
3162 \wxheading{Parameters
}
3164 \docparam{orientation
}{Determines the scrollbar whose position is to be set. May be wxHORIZONTAL or wxVERTICAL.
}
3166 \docparam{pos
}{Position in scroll units.
}
3168 \docparam{refresh
}{{\tt true
} to redraw the scrollbar,
{\tt false
} otherwise.
}
3172 This function does not directly affect the contents of the window: it is up to the
3173 application to take note of scrollbar attributes and redraw contents accordingly.
3175 \wxheading{See also
}
3177 \helpref{wxWindow::SetScrollbar
}{wxwindowsetscrollbar
},
\rtfsp
3178 \helpref{wxWindow::GetScrollPos
}{wxwindowgetscrollpos
},
\rtfsp
3179 \helpref{wxWindow::GetScrollThumb
}{wxwindowgetscrollthumb
},
\rtfsp
3180 \helpref{wxScrollBar
}{wxscrollbar
},
\helpref{wxScrolledWindow
}{wxscrolledwindow
}
3185 \membersection{wxWindow::SetScrollRange
}\label{wxwindowsetscrollrange
}
3187 \func{virtual void
}{SetScrollRange
}{\param{int
}{orientation
},
\param{int
}{range
},
\param{bool
}{refresh =
{\tt true
}}}
3189 Sets the range of one of the built-in scrollbars.
3191 \wxheading{Parameters
}
3193 \docparam{orientation
}{Determines the scrollbar whose range is to be set. May be wxHORIZONTAL or wxVERTICAL.
}
3195 \docparam{range
}{Scroll range.
}
3197 \docparam{refresh
}{{\tt true
} to redraw the scrollbar,
{\tt false
} otherwise.
}
3201 The range of a scrollbar is the number of steps that the thumb may travel, rather than the total
3202 object length of the scrollbar. If you are implementing a scrolling window, for example, you
3203 would adjust the scroll range when the window is resized, by subtracting the window view size from the
3204 total virtual window size. When the two sizes are the same (all the window is visible), the range goes to zero
3205 and usually the scrollbar will be automatically hidden.
3207 \wxheading{See also
}
3209 \helpref{wxWindow::SetScrollPos
}{wxwindowsetscrollpos
},
\rtfsp
3210 \helpref{wxWindow::SetScrollPage
}{wxwindowsetscrollpage
},
\rtfsp
3211 \helpref{wxWindow::GetScrollPos
}{wxwindowgetscrollpos
},
\rtfsp
3212 \helpref{wxWindow::GetScrollPage
}{wxwindowgetscrollpage
},
\rtfsp
3213 \helpref{wxScrollBar
}{wxscrollbar
},
\helpref{wxScrolledWindow
}{wxscrolledwindow
}
3217 \membersection{wxWindow::SetSize
}\label{wxwindowsetsize
}
3219 \func{virtual void
}{SetSize
}{\param{int
}{ x
},
\param{int
}{ y
},
\param{int
}{ width
},
\param{int
}{ height
},
3220 \param{int
}{ sizeFlags = wxSIZE
\_AUTO}}
3222 \func{virtual void
}{SetSize
}{\param{const wxRect\&
}{ rect
}}
3224 Sets the size and position of the window in pixels.
3226 \func{virtual void
}{SetSize
}{\param{int
}{ width
},
\param{int
}{ height
}}
3228 \func{virtual void
}{SetSize
}{\param{const wxSize\&
}{ size
}}
3230 Sets the size of the window in pixels.
3232 \wxheading{Parameters
}
3234 \docparam{x
}{Required x position in pixels, or wxDefaultCoord to indicate that the existing
3235 value should be used.
}
3237 \docparam{y
}{Required y position in pixels, or wxDefaultCoord to indicate that the existing
3238 value should be used.
}
3240 \docparam{width
}{Required width in pixels, or wxDefaultCoord to indicate that the existing
3241 value should be used.
}
3243 \docparam{height
}{Required height position in pixels, or wxDefaultCoord to indicate that the existing
3244 value should be used.
}
3246 \docparam{size
}{\helpref{wxSize
}{wxsize
} object for setting the size.
}
3248 \docparam{rect
}{\helpref{wxRect
}{wxrect
} object for setting the position and size.
}
3250 \docparam{sizeFlags
}{Indicates the interpretation of other parameters. It is a bit list of the following:
3252 {\bf wxSIZE
\_AUTO\_WIDTH}: a $wxDefaultCoord$ width value is taken to indicate
3253 a wxWidgets-supplied default width.\\
3254 {\bf wxSIZE
\_AUTO\_HEIGHT}: a $wxDefaultCoord$ height value is taken to indicate
3255 a wxWidgets-supplied default height.\\
3256 {\bf wxSIZE
\_AUTO}: $wxDefaultCoord$ size values are taken to indicate
3257 a wxWidgets-supplied default size.\\
3258 {\bf wxSIZE
\_USE\_EXISTING}: existing dimensions should be used
3259 if $wxDefaultCoord$ values are supplied.\\
3260 {\bf wxSIZE
\_ALLOW\_MINUS\_ONE}: allow negative dimensions (ie. value of $wxDefaultCoord$) to be interpreted
3261 as real dimensions, not default values.
3262 {\bf wxSIZE
\_FORCE}: normally, if the position and the size of the window are
3263 already the same as the parameters of this function, nothing is done. but with
3264 this flag a window resize may be forced even in this case (supported in wx
3265 2.6.2 and later and only implemented for MSW and ignored elsewhere currently)
3270 The second form is a convenience for calling the first form with default
3271 x and y parameters, and must be used with non-default width and height values.
3273 The first form sets the position and optionally size, of the window.
3274 Parameters may be $wxDefaultCoord$ to indicate either that a default should be supplied
3275 by wxWidgets, or that the current value of the dimension should be used.
3277 \wxheading{See also
}
3279 \helpref{wxWindow::Move
}{wxwindowmove
}
3281 \pythonnote{In place of a single overloaded method name, wxPython
3282 implements the following methods:
\par
3283 \indented{2cm
}{\begin{twocollist
}
3284 \twocolitem{{\bf SetDimensions(x, y, width, height, sizeFlags=wxSIZE
\_AUTO)
}}{}
3285 \twocolitem{{\bf SetSize(size)
}}{}
3286 \twocolitem{{\bf SetPosition(point)
}}{}
3291 \membersection{wxWindow::SetSizeHints
}\label{wxwindowsetsizehints
}
3293 This method does nothing for a normal wxWindow and is only kept
3294 for backwards compatibility. The actual implementation is in
3295 \helpref{wxTopLevelWindow::SetSizeHints
}{wxtoplevelwindowsetsizehints
}.
3298 \membersection{wxWindow::SetSizer
}\label{wxwindowsetsizer
}
3300 \func{void
}{SetSizer
}{\param{wxSizer*
}{sizer
},
\param{bool
}{deleteOld=true
}}
3302 Sets the window to have the given layout sizer. The window
3303 will then own the object, and will take care of its deletion.
3304 If an existing layout constraints object is already owned by the
3305 window, it will be deleted if the deleteOld parameter is true.
3307 Note that this function will also call
3308 \helpref{SetAutoLayout
}{wxwindowsetautolayout
} implicitly with
{\tt true
}
3309 parameter if the
{\it sizer
}\/ is non-NULL and
{\tt false
} otherwise.
3311 \wxheading{Parameters
}
3313 \docparam{sizer
}{The sizer to set. Pass NULL to disassociate and conditionally delete
3314 the window's sizer. See below.
}
3316 \docparam{deleteOld
}{If true (the default), this will delete any prexisting sizer.
3317 Pass false if you wish to handle deleting the old sizer yourself.
}
3321 SetSizer now enables and disables Layout automatically, but prior to wxWidgets
2.3.3
3322 the following applied:
3324 You must call
\helpref{wxWindow::SetAutoLayout
}{wxwindowsetautolayout
} to tell a window to use
3325 the sizer automatically in OnSize; otherwise, you must override OnSize and call Layout()
3326 explicitly. When setting both a wxSizer and a
\helpref{wxLayoutConstraints
}{wxlayoutconstraints
},
3327 only the sizer will have effect.
3330 \membersection{wxWindow::SetSizerAndFit
}\label{wxwindowsetsizerandfit
}
3332 \func{void
}{SetSizerAndFit
}{\param{wxSizer*
}{sizer
},
\param{bool
}{deleteOld=true
}}
3334 The same as
\helpref{SetSizer
}{wxwindowsetsizer
}, except it also sets the size hints
3335 for the window based on the sizer's minimum size.
3338 \membersection{wxWindow::SetThemeEnabled
}\label{wxwindowsetthemeenabled
}
3340 \func{virtual void
}{SetThemeEnabled
}{\param{bool
}{enable
}}
3342 This function tells a window if it should use the system's "theme" code
3343 to draw the windows' background instead if its own background drawing
3344 code. This does not always have any effect since the underlying platform
3345 obviously needs to support the notion of themes in user defined windows.
3346 One such platform is GTK+ where windows can have (very colourful) backgrounds
3347 defined by a user's selected theme.
3349 Dialogs, notebook pages and the status bar have this flag set to true
3350 by default so that the default look and feel is simulated best.
3353 \membersection{wxWindow::SetToolTip
}\label{wxwindowsettooltip
}
3355 \func{void
}{SetToolTip
}{\param{const wxString\&
}{tip
}}
3357 \func{void
}{SetToolTip
}{\param{wxToolTip*
}{tip
}}
3359 Attach a tooltip to the window.
3361 See also:
\helpref{GetToolTip
}{wxwindowgettooltip
},
3362 \helpref{wxToolTip
}{wxtooltip
}
3365 \membersection{wxWindow::SetValidator
}\label{wxwindowsetvalidator
}
3367 \func{virtual void
}{SetValidator
}{\param{const wxValidator\&
}{ validator
}}
3369 Deletes the current validator (if any) and sets the window validator, having called wxValidator::Clone to
3370 create a new validator of this type.
3373 \membersection{wxWindow::SetVirtualSize
}\label{wxwindowsetvirtualsize
}
3375 \func{void
}{SetVirtualSize
}{\param{int
}{ width
},
\param{int
}{ height
}}
3377 \func{void
}{SetVirtualSize
}{\param{const wxSize\&
}{ size
}}
3379 Sets the virtual size of the window in pixels.
3382 \membersection{wxWindow::SetVirtualSizeHints
}\label{wxwindowsetvirtualsizehints
}
3384 \func{virtual void
}{SetVirtualSizeHints
}{\param{int
}{ minW
},
\param{int
}{ minH
},
\param{int
}{ maxW=-
1},
\param{int
}{ maxH=-
1}}
3386 \func{void
}{SetVirtualSizeHints
}{\param{const wxSize\&
}{ minSize=wxDefaultSize
},
3387 \param{const wxSize\&
}{ maxSize=wxDefaultSize
}}
3390 Allows specification of minimum and maximum virtual window sizes.
3391 If a pair of values is not set (or set to -
1), the default values
3394 \wxheading{Parameters
}
3396 \docparam{minW
}{Specifies the minimum width allowable.
}
3398 \docparam{minH
}{Specifies the minimum height allowable.
}
3400 \docparam{maxW
}{Specifies the maximum width allowable.
}
3402 \docparam{maxH
}{Specifies the maximum height allowable.
}
3404 \docparam{minSize
}{Minimum size.
}
3406 \docparam{maxSize
}{Maximum size.
}
3410 If this function is called, the user will not be able to size the virtual area
3411 of the window outside the given bounds.
3414 \membersection{wxWindow::SetWindowStyle
}\label{wxwindowsetwindowstyle
}
3416 \func{void
}{SetWindowStyle
}{\param{long
}{ style
}}
3418 Identical to
\helpref{SetWindowStyleFlag
}{wxwindowsetwindowstyleflag
}.
3421 \membersection{wxWindow::SetWindowStyleFlag
}\label{wxwindowsetwindowstyleflag
}
3423 \func{virtual void
}{SetWindowStyleFlag
}{\param{long
}{ style
}}
3425 Sets the style of the window. Please note that some styles cannot be changed
3426 after the window creation and that
\helpref{Refresh()
}{wxwindowrefresh
} might
3427 be called after changing the others for the change to take place immediately.
3429 See
\helpref{Window styles
}{windowstyles
} for more information about flags.
3431 \wxheading{See also
}
3433 \helpref{GetWindowStyleFlag
}{wxwindowgetwindowstyleflag
}
3436 \membersection{wxWindow::SetWindowVariant
}\label{wxwindowsetwindowvariant
}
3438 \func{void
}{SetWindowVariant
}{\param{wxWindowVariant
}{variant
}}
3440 This function can be called under all platforms but only does anything under
3441 Mac OS X
10.3+ currently. Under this system, each of the standard control can
3442 exist in several sizes which correspond to the elements of wxWindowVariant
3445 enum wxWindowVariant
3447 wxWINDOW_VARIANT_NORMAL, // Normal size
3448 wxWINDOW_VARIANT_SMALL, // Smaller size (about
25 % smaller than normal )
3449 wxWINDOW_VARIANT_MINI, // Mini size (about
33 % smaller than normal )
3450 wxWINDOW_VARIANT_LARGE, // Large size (about
25 % larger than normal )
3454 By default the controls use the normal size, of course, but this function can
3455 be used to change this.
3458 \membersection{wxWindow::ShouldInheritColours
}\label{wxwindowshouldinheritcolours
}
3460 \func{virtual bool
}{ShouldInheritColours
}{\void}
3462 Return
\true from here to allow the colours of this window to be changed by
3463 \helpref{InheritAttributes
}{wxwindowinheritattributes
}, returning
\false
3464 forbids inheriting them from the parent window.
3466 The base class version returns
\false, but this method is overridden in
3467 \helpref{wxControl
}{wxcontrol
} where it returns
\true.
3470 \membersection{wxWindow::Show
}\label{wxwindowshow
}
3472 \func{virtual bool
}{Show
}{\param{bool
}{ show =
{\tt true
}}}
3474 Shows or hides the window. You may need to call
\helpref{Raise
}{wxwindowraise
}
3475 for a top level window if you want to bring it to top, although this is not
3476 needed if Show() is called immediately after the frame creation.
3478 \wxheading{Parameters
}
3480 \docparam{show
}{If
{\tt true
} displays the window. Otherwise, hides it.
}
3482 \wxheading{Return value
}
3484 {\tt true
} if the window has been shown or hidden or
{\tt false
} if nothing was
3485 done because it already was in the requested state.
3487 \wxheading{See also
}
3489 \helpref{wxWindow::IsShown
}{wxwindowisshown
},
\rtfsp
3490 \helpref{wxWindow::Hide
}{wxwindowhide
},
\rtfsp
3491 \helpref{wxRadioBox::Show
}{wxradioboxshow
}
3494 \membersection{wxWindow::Thaw
}\label{wxwindowthaw
}
3496 \func{virtual void
}{Thaw
}{\void}
3498 Reenables window updating after a previous call to
3499 \helpref{Freeze
}{wxwindowfreeze
}. To really thaw the control, it must be called
3500 exactly the same number of times as
\helpref{Freeze
}{wxwindowfreeze
}.
3502 \wxheading{See also
}
3504 \helpref{wxWindowUpdateLocker
}{wxwindowupdatelocker
}
3507 \membersection{wxWindow::TransferDataFromWindow
}\label{wxwindowtransferdatafromwindow
}
3509 \func{virtual bool
}{TransferDataFromWindow
}{\void}
3511 Transfers values from child controls to data areas specified by their validators. Returns
3512 {\tt false
} if a transfer failed.
3514 If the window has
{\tt wxWS
\_EX\_VALIDATE\_RECURSIVELY} extra style flag set,
3515 the method will also call TransferDataFromWindow() of all child windows.
3517 \wxheading{See also
}
3519 \helpref{wxWindow::TransferDataToWindow
}{wxwindowtransferdatatowindow
},
\rtfsp
3520 \helpref{wxValidator
}{wxvalidator
},
\helpref{wxWindow::Validate
}{wxwindowvalidate
}
3523 \membersection{wxWindow::TransferDataToWindow
}\label{wxwindowtransferdatatowindow
}
3525 \func{virtual bool
}{TransferDataToWindow
}{\void}
3527 Transfers values to child controls from data areas specified by their validators.
3529 If the window has
{\tt wxWS
\_EX\_VALIDATE\_RECURSIVELY} extra style flag set,
3530 the method will also call TransferDataToWindow() of all child windows.
3532 \wxheading{Return value
}
3534 Returns
{\tt false
} if a transfer failed.
3536 \wxheading{See also
}
3538 \helpref{wxWindow::TransferDataFromWindow
}{wxwindowtransferdatafromwindow
},
\rtfsp
3539 \helpref{wxValidator
}{wxvalidator
},
\helpref{wxWindow::Validate
}{wxwindowvalidate
}
3542 \membersection{wxWindow::UnregisterHotKey
}\label{wxwindowunregisterhotkey
}
3544 \func{bool
}{UnregisterHotKey
}{\param{int
}{ hotkeyId
}}
3546 Unregisters a system wide hotkey.
3548 \wxheading{Parameters
}
3550 \docparam{hotkeyId
}{Numeric identifier of the hotkey. Must be the same id that was passed to RegisterHotKey.
}
3552 \wxheading{Return value
}
3554 {\tt true
} if the hotkey was unregistered successfully,
{\tt false
} if the id was invalid.
3558 This function is currently only implemented under MSW.
3560 \wxheading{See also
}
3562 \helpref{wxWindow::RegisterHotKey
}{wxwindowregisterhotkey
}
3565 \membersection{wxWindow::Update
}\label{wxwindowupdate
}
3567 \func{virtual void
}{Update
}{\void}
3569 Calling this method immediately repaints the invalidated area of the window and
3570 all of its children recursively while this would usually only happen when the
3571 flow of control returns to the event loop.
3572 Notice that this function doesn't invalidate any area of the window so
3573 nothing happens if nothing has been invalidated (i.e. marked as requiring
3574 a redraw). Use
\helpref{Refresh
}{wxwindowrefresh
} first if you want to
3575 immediately redraw the window unconditionally.
3578 \membersection{wxWindow::UpdateWindowUI
}\label{wxwindowupdatewindowui
}
3580 \func{virtual void
}{UpdateWindowUI
}{\param{long
}{ flags = wxUPDATE
\_UI\_NONE}}
3582 This function sends
\helpref{wxUpdateUIEvents
}{wxupdateuievent
} to
3583 the window. The particular implementation depends on the window; for
3584 example a wxToolBar will send an update UI event for each toolbar button,
3585 and a wxFrame will send an update UI event for each menubar menu item.
3586 You can call this function from your application to ensure that your
3587 UI is up-to-date at this point (as far as your wxUpdateUIEvent handlers
3588 are concerned). This may be necessary if you have called
3589 \helpref{wxUpdateUIEvent::SetMode
}{wxupdateuieventsetmode
} or
3590 \helpref{wxUpdateUIEvent::SetUpdateInterval
}{wxupdateuieventsetupdateinterval
} to
3591 limit the overhead that wxWidgets incurs by sending update UI events in idle time.
3593 {\it flags
} should be a bitlist of one or more of the following values.
3598 wxUPDATE_UI_NONE =
0x0000, // No particular value
3599 wxUPDATE_UI_RECURSE =
0x0001, // Call the function for descendants
3600 wxUPDATE_UI_FROMIDLE =
0x0002 // Invoked from On(Internal)Idle
3604 If you are calling this function from an OnInternalIdle or OnIdle
3605 function, make sure you pass the wxUPDATE
\_UI\_FROMIDLE flag, since
3606 this tells the window to only update the UI elements that need
3607 to be updated in idle time. Some windows update their elements
3608 only when necessary, for example when a menu is about to be shown.
3609 The following is an example of how to call UpdateWindowUI from
3613 void MyWindow::OnInternalIdle()
3615 if (wxUpdateUIEvent::CanUpdate(this))
3616 UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
3620 \wxheading{See also
}
3622 \helpref{wxUpdateUIEvent
}{wxupdateuievent
},
3623 \helpref{wxWindow::DoUpdateWindowUI
}{wxwindowdoupdatewindowui
},
3624 \helpref{wxWindow::OnInternalIdle
}{wxwindowoninternalidle
}
3627 \membersection{wxWindow::Validate
}\label{wxwindowvalidate
}
3629 \func{virtual bool
}{Validate
}{\void}
3631 Validates the current values of the child controls using their validators.
3633 If the window has
{\tt wxWS
\_EX\_VALIDATE\_RECURSIVELY} extra style flag set,
3634 the method will also call Validate() of all child windows.
3636 \wxheading{Return value
}
3638 Returns
{\tt false
} if any of the validations failed.
3640 \wxheading{See also
}
3642 \helpref{wxWindow::TransferDataFromWindow
}{wxwindowtransferdatafromwindow
},
\rtfsp
3643 \helpref{wxWindow::TransferDataToWindow
}{wxwindowtransferdatatowindow
},
\rtfsp
3644 \helpref{wxValidator
}{wxvalidator
}
3647 \membersection{wxWindow::WarpPointer
}\label{wxwindowwarppointer
}
3649 \func{void
}{WarpPointer
}{\param{int
}{ x
},
\param{int
}{ y
}}
3651 Moves the pointer to the given position on the window.
3653 {\bf NB:
} This function is not supported under Mac because Apple Human
3654 Interface Guidelines forbid moving the mouse cursor programmatically.
3656 \wxheading{Parameters
}
3658 \docparam{x
}{The new x position for the cursor.
}
3660 \docparam{y
}{The new y position for the cursor.
}