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 only implemented for wxMSW 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
210 \helpref{wxWindow::ReleaseMouse
}{wxwindowreleasemouse
}
213 \membersection{wxWindow::Center
}\label{wxwindowcenter
}
215 \func{void
}{Center
}{\param{int
}{ direction
}}
217 A synonym for
\helpref{Centre
}{wxwindowcentre
}.
220 \membersection{wxWindow::CenterOnParent
}\label{wxwindowcenteronparent
}
222 \func{void
}{CenterOnParent
}{\param{int
}{ direction
}}
224 A synonym for
\helpref{CentreOnParent
}{wxwindowcentreonparent
}.
227 \membersection{wxWindow::CenterOnScreen
}\label{wxwindowcenteronscreen
}
229 \func{void
}{CenterOnScreen
}{\param{int
}{ direction
}}
231 A synonym for
\helpref{CentreOnScreen
}{wxwindowcentreonscreen
}.
234 \membersection{wxWindow::Centre
}\label{wxwindowcentre
}
236 \func{void
}{Centre
}{\param{int
}{ direction = wxBOTH
}}
240 \wxheading{Parameters
}
242 \docparam{direction
}{Specifies the direction for the centering. May be
{\tt wxHORIZONTAL
},
{\tt wxVERTICAL
}\rtfsp
243 or
{\tt wxBOTH
}. It may also include
{\tt wxCENTRE
\_ON\_SCREEN} flag
244 if you want to center the window on the entire screen and not on its
247 The flag
{\tt wxCENTRE
\_FRAME} is obsolete and should not be used any longer
252 If the window is a top level one (i.e. doesn't have a parent), it will be
253 centered relative to the screen anyhow.
257 \helpref{wxWindow::Center
}{wxwindowcenter
}
260 \membersection{wxWindow::CentreOnParent
}\label{wxwindowcentreonparent
}
262 \func{void
}{CentreOnParent
}{\param{int
}{ direction = wxBOTH
}}
264 Centres the window on its parent. This is a more readable synonym for
265 \helpref{Centre
}{wxwindowcentre
}.
267 \wxheading{Parameters
}
269 \docparam{direction
}{Specifies the direction for the centering. May be
{\tt wxHORIZONTAL
},
{\tt wxVERTICAL
}\rtfsp
274 This methods provides for a way to center top level windows over their
275 parents instead of the entire screen. If there is no parent or if the
276 window is not a top level window, then behaviour is the same as
277 \helpref{wxWindow::Centre
}{wxwindowcentre
}.
281 \helpref{wxWindow::CentreOnScreen
}{wxwindowcenteronscreen
}
284 \membersection{wxWindow::CentreOnScreen
}\label{wxwindowcentreonscreen
}
286 \func{void
}{CentreOnScreen
}{\param{int
}{ direction = wxBOTH
}}
288 Centres the window on screen. This only works for top level windows -
289 otherwise, the window will still be centered on its parent.
291 \wxheading{Parameters
}
293 \docparam{direction
}{Specifies the direction for the centering. May be
{\tt wxHORIZONTAL
},
{\tt wxVERTICAL
}\rtfsp
298 \helpref{wxWindow::CentreOnParent
}{wxwindowcenteronparent
}
301 \membersection{wxWindow::ClearBackground
}\label{wxwindowclearbackground
}
303 \func{void
}{ClearBackground
}{\void}
305 Clears the window by filling it with the current background colour. Does not
306 cause an erase background event to be generated.
309 \membersection{wxWindow::ClientToScreen
}\label{wxwindowclienttoscreen
}
311 \constfunc{virtual void
}{ClientToScreen
}{\param{int*
}{x
},
\param{int*
}{y
}}
313 \perlnote{In wxPerl this method returns a
2-element list instead of
314 modifying its parameters.
}
316 \constfunc{virtual wxPoint
}{ClientToScreen
}{\param{const wxPoint\&
}{ pt
}}
318 Converts to screen coordinates from coordinates relative to this window.
320 \docparam{x
}{A pointer to a integer value for the x coordinate. Pass the client coordinate in, and
321 a screen coordinate will be passed out.
}
323 \docparam{y
}{A pointer to a integer value for the y coordinate. Pass the client coordinate in, and
324 a screen coordinate will be passed out.
}
326 \docparam{pt
}{The client position for the second form of the function.
}
328 \pythonnote{In place of a single overloaded method name, wxPython
329 implements the following methods:
\par
330 \indented{2cm
}{\begin{twocollist
}
331 \twocolitem{{\bf ClientToScreen(point)
}}{Accepts and returns a wxPoint
}
332 \twocolitem{{\bf ClientToScreenXY(x, y)
}}{Returns a
2-tuple, (x, y)
}
337 \membersection{wxWindow::Close
}\label{wxwindowclose
}
339 \func{bool
}{Close
}{\param{bool
}{ force =
{\tt false
}}}
341 This function simply generates a
\helpref{wxCloseEvent
}{wxcloseevent
} whose
342 handler usually tries to close the window. It doesn't close the window itself,
345 \wxheading{Parameters
}
347 \docparam{force
}{{\tt false
} if the window's close handler should be able to veto the destruction
348 of this window,
{\tt true
} if it cannot.
}
352 Close calls the
\helpref{close handler
}{wxcloseevent
} for the window, providing
353 an opportunity for the window to choose whether to destroy the window.
354 Usually it is only used with the top level windows (wxFrame and wxDialog
355 classes) as the others are not supposed to have any special OnClose() logic.
357 The close handler should check whether the window is being deleted forcibly,
358 using
\helpref{wxCloseEvent::CanVeto
}{wxcloseeventcanveto
}, in which case it
359 should destroy the window using
\helpref{wxWindow::Destroy
}{wxwindowdestroy
}.
361 {\it Note
} that calling Close does not guarantee that the window will be
362 destroyed; but it provides a way to simulate a manual close of a window, which
363 may or may not be implemented by destroying the window. The default
364 implementation of wxDialog::OnCloseWindow does not necessarily delete the
365 dialog, since it will simply simulate an wxID
\_CANCEL event which is handled by
366 the appropriate button event handler and may do anything at all.
368 To guarantee that the window will be destroyed, call
369 \helpref{wxWindow::Destroy
}{wxwindowdestroy
} instead
373 \helpref{Window deletion overview
}{windowdeletionoverview
},
\rtfsp
374 \helpref{wxWindow::Destroy
}{wxwindowdestroy
},
\rtfsp
375 \helpref{wxCloseEvent
}{wxcloseevent
}
378 \membersection{wxWindow::ConvertDialogToPixels
}\label{wxwindowconvertdialogtopixels
}
380 \func{wxPoint
}{ConvertDialogToPixels
}{\param{const wxPoint\&
}{ pt
}}
382 \func{wxSize
}{ConvertDialogToPixels
}{\param{const wxSize\&
}{ sz
}}
384 Converts a point or size from dialog units to pixels.
386 For the x dimension, the dialog units are multiplied by the average character width
387 and then divided by
4.
389 For the y dimension, the dialog units are multiplied by the average character height
390 and then divided by
8.
394 Dialog units are used for maintaining a dialog's proportions even if the font changes.
396 You can also use these functions programmatically. A convenience macro is defined:
400 #define wxDLG_UNIT(parent, pt) parent->ConvertDialogToPixels(pt)
406 \helpref{wxWindow::ConvertPixelsToDialog
}{wxwindowconvertpixelstodialog
}
408 \pythonnote{In place of a single overloaded method name, wxPython
409 implements the following methods:
\par
410 \indented{2cm
}{\begin{twocollist
}
411 \twocolitem{{\bf ConvertDialogPointToPixels(point)
}}{Accepts and returns a wxPoint
}
412 \twocolitem{{\bf ConvertDialogSizeToPixels(size)
}}{Accepts and returns a wxSize
}
415 Additionally, the following helper functions are defined:
\par
416 \indented{2cm
}{\begin{twocollist
}
417 \twocolitem{{\bf wxDLG
\_PNT(win, point)
}}{Converts a wxPoint from dialog
419 \twocolitem{{\bf wxDLG
\_SZE(win, size)
}}{Converts a wxSize from dialog
426 \membersection{wxWindow::ConvertPixelsToDialog
}\label{wxwindowconvertpixelstodialog
}
428 \func{wxPoint
}{ConvertPixelsToDialog
}{\param{const wxPoint\&
}{ pt
}}
430 \func{wxSize
}{ConvertPixelsToDialog
}{\param{const wxSize\&
}{ sz
}}
432 Converts a point or size from pixels to dialog units.
434 For the x dimension, the pixels are multiplied by
4 and then divided by the average
437 For the y dimension, the pixels are multiplied by
8 and then divided by the average
442 Dialog units are used for maintaining a dialog's proportions even if the font changes.
446 \helpref{wxWindow::ConvertDialogToPixels
}{wxwindowconvertdialogtopixels
}
448 \pythonnote{In place of a single overloaded method name, wxPython implements the following methods:
\par
449 \indented{2cm
}{\begin{twocollist
}
450 \twocolitem{{\bf ConvertDialogPointToPixels(point)
}}{Accepts and returns a wxPoint
}
451 \twocolitem{{\bf ConvertDialogSizeToPixels(size)
}}{Accepts and returns a wxSize
}
456 \membersection{wxWindow::Destroy
}\label{wxwindowdestroy
}
458 \func{virtual bool
}{Destroy
}{\void}
460 Destroys the window safely. Use this function instead of the delete operator, since
461 different window classes can be destroyed differently. Frames and dialogs
462 are not destroyed immediately when this function is called -- they are added
463 to a list of windows to be deleted on idle time, when all the window's events
464 have been processed. This prevents problems with events being sent to non-existent
467 \wxheading{Return value
}
469 {\tt true
} if the window has either been successfully deleted, or it has been added
470 to the list of windows pending real deletion.
473 \membersection{wxWindow::DestroyChildren
}\label{wxwindowdestroychildren
}
475 \func{virtual void
}{DestroyChildren
}{\void}
477 Destroys all children of a window. Called automatically by the destructor.
480 \membersection{wxWindow::Disable
}\label{wxwindowdisable
}
482 \func{bool
}{Disable
}{\void}
484 Disables the window, same as
\helpref{Enable(
{\tt false
})
}{wxwindowenable
}.
486 \wxheading{Return value
}
488 Returns
{\tt true
} if the window has been disabled,
{\tt false
} if it had been
489 already disabled before the call to this function.
492 \membersection{wxWindow::DoGetBestSize
}\label{wxwindowdogetbestsize
}
494 \constfunc{virtual wxSize
}{DoGetBestSize
}{\void}
496 Gets the size which best suits the window: for a control, it would be
497 the minimal size which doesn't truncate the control, for a panel - the
498 same size as it would have after a call to
\helpref{Fit()
}{wxwindowfit
}.
501 \membersection{wxWindow::DoUpdateWindowUI
}\label{wxwindowdoupdatewindowui
}
503 \func{virtual void
}{DoUpdateWindowUI
}{\param{wxUpdateUIEvent\&
}{ event
}}
505 Does the window-specific updating after processing the update event.
506 This function is called by
\helpref{wxWindow::UpdateWindowUI
}{wxwindowupdatewindowui
}
507 in order to check return values in the
\helpref{wxUpdateUIEvent
}{wxupdateuievent
} and
508 act appropriately. For example, to allow frame and dialog title updating, wxWidgets
509 implements this function as follows:
512 // do the window-specific processing after processing the update event
513 void wxTopLevelWindowBase::DoUpdateWindowUI(wxUpdateUIEvent& event)
515 if ( event.GetSetEnabled() )
516 Enable(event.GetEnabled());
518 if ( event.GetSetText() )
520 if ( event.GetText() != GetTitle() )
521 SetTitle(event.GetText());
528 \membersection{wxWindow::DragAcceptFiles
}\label{wxwindowdragacceptfiles
}
530 \func{virtual void
}{DragAcceptFiles
}{\param{bool
}{ accept
}}
532 Enables or disables eligibility for drop file events (OnDropFiles).
534 \wxheading{Parameters
}
536 \docparam{accept
}{If
{\tt true
}, the window is eligible for drop file events. If
{\tt false
}, the window
537 will not accept drop file events.
}
544 \membersection{wxWindow::Enable
}\label{wxwindowenable
}
546 \func{virtual bool
}{Enable
}{\param{bool
}{ enable =
{\tt true
}}}
548 Enable or disable the window for user input. Note that when a parent window is
549 disabled, all of its children are disabled as well and they are reenabled again
552 \wxheading{Parameters
}
554 \docparam{enable
}{If
{\tt true
}, enables the window for input. If
{\tt false
}, disables the window.
}
556 \wxheading{Return value
}
558 Returns
{\tt true
} if the window has been enabled or disabled,
{\tt false
} if
559 nothing was done, i.e. if the window had already been in the specified state.
563 \helpref{wxWindow::IsEnabled
}{wxwindowisenabled
},
\rtfsp
564 \helpref{wxWindow::Disable
}{wxwindowdisable
},
\rtfsp
565 \helpref{wxRadioBox::Enable
}{wxradioboxenable
}
568 \membersection{wxWindow::FindFocus
}\label{wxwindowfindfocus
}
570 \func{static wxWindow*
}{FindFocus
}{\void}
572 Finds the window or control which currently has the keyboard focus.
576 Note that this is a static function, so it can be called without needing a wxWindow pointer.
580 \helpref{wxWindow::SetFocus
}{wxwindowsetfocus
}
584 \membersection{wxWindow::FindWindow
}\label{wxwindowfindwindow
}
586 \constfunc{wxWindow*
}{FindWindow
}{\param{long
}{ id
}}
588 Find a child of this window, by identifier.
590 \constfunc{wxWindow*
}{FindWindow
}{\param{const wxString\&
}{ name
}}
592 Find a child of this window, by name.
594 \pythonnote{In place of a single overloaded method name, wxPython
595 implements the following methods:
\par
596 \indented{2cm
}{\begin{twocollist
}
597 \twocolitem{{\bf FindWindowById(id)
}}{Accepts an integer
}
598 \twocolitem{{\bf FindWindowByName(name)
}}{Accepts a string
}
603 \membersection{wxWindow::FindWindowById
}\label{wxwindowfindwindowbyid
}
605 \func{static wxWindow*
}{FindWindowById
}{\param{long
}{ id
},
\param{wxWindow*
}{ parent = NULL
}}
607 Find the first window with the given
{\it id
}.
609 If
{\it parent
} is NULL, the search will start from all top-level
610 frames and dialog boxes; if non-NULL, the search will be limited to the given window hierarchy.
611 The search is recursive in both cases.
615 \helpref{FindWindow
}{wxwindowfindwindow
}
618 \membersection{wxWindow::FindWindowByLabel
}\label{wxwindowfindwindowbylabel
}
620 \func{static wxWindow*
}{FindWindowByLabel
}{\param{const wxString\&
}{ label
},
\param{wxWindow*
}{ parent = NULL
}}
622 Find a window by its label. Depending on the type of window, the label may be a window title
623 or panel item label. If
{\it parent
} is NULL, the search will start from all top-level
624 frames and dialog boxes; if non-NULL, the search will be limited to the given window hierarchy.
625 The search is recursive in both cases.
629 \helpref{FindWindow
}{wxwindowfindwindow
}
632 \membersection{wxWindow::FindWindowByName
}\label{wxwindowfindwindowbyname
}
634 \func{static wxWindow*
}{FindWindowByName
}{\param{const wxString\&
}{ name
},
\param{wxWindow*
}{ parent = NULL
}}
636 Find a window by its name (as given in a window constructor or
{\bf Create
} function call).
637 If
{\it parent
} is NULL, the search will start from all top-level
638 frames and dialog boxes; if non-NULL, the search will be limited to the given window hierarchy.
639 The search is recursive in both cases.
641 If no window with such name is found,
642 \helpref{FindWindowByLabel
}{wxwindowfindwindowbylabel
} is called.
646 \helpref{FindWindow
}{wxwindowfindwindow
}
649 \membersection{wxWindow::Fit
}\label{wxwindowfit
}
651 \func{virtual void
}{Fit
}{\void}
653 Sizes the window so that it fits around its subwindows. This function won't do
654 anything if there are no subwindows and will only really work correctly if the
655 sizers are used for the subwindows layout. Also, if the window has exactly one
656 subwindow it is better (faster and the result is more precise as Fit adds some
657 margin to account for fuzziness of its calculations) to call
660 window->SetClientSize(child->GetSize());
663 instead of calling Fit.
666 \membersection{wxWindow::FitInside
}\label{wxwindowfitinside
}
668 \func{virtual void
}{FitInside
}{\void}
670 Similar to
\helpref{Fit
}{wxwindowfit
}, but sizes the interior (virtual) size
671 of a window. Mainly useful with scrolled windows to reset scrollbars after
672 sizing changes that do not trigger a size event, and/or scrolled windows without
673 an interior sizer. This function similarly won't do anything if there are no
677 \membersection{wxWindow::Freeze
}\label{wxwindowfreeze
}
679 \func{virtual void
}{Freeze
}{\void}
681 Freezes the window or, in other words, prevents any updates from taking place
682 on screen, the window is not redrawn at all.
\helpref{Thaw
}{wxwindowthaw
} must
683 be called to reenable window redrawing. Calls to these two functions may be
686 This method is useful for visual appearance optimization (for example, it
687 is a good idea to use it before doing many large text insertions in a row into
688 a wxTextCtrl under wxGTK) but is not implemented on all platforms nor for all
689 controls so it is mostly just a hint to wxWidgets and not a mandatory
694 \helpref{wxWindowUpdateLocker
}{wxwindowupdatelocker
}
697 \membersection{wxWindow::GetAcceleratorTable
}\label{wxwindowgetacceleratortable
}
699 \constfunc{wxAcceleratorTable*
}{GetAcceleratorTable
}{\void}
701 Gets the accelerator table for this window. See
\helpref{wxAcceleratorTable
}{wxacceleratortable
}.
704 \membersection{wxWindow::GetAccessible
}\label{wxwindowgetaccessible
}
706 \func{wxAccessible*
}{GetAccessible
}{\void}
708 Returns the accessible object for this window, if any.
710 See also
\helpref{wxAccessible
}{wxaccessible
}.
713 \membersection{wxWindow::GetAdjustedBestSize
}\label{wxwindowgetadjustedbestsize
}
715 \constfunc{wxSize
}{GetAdjustedBestSize
}{\void}
717 This method is similar to
\helpref{GetBestSize
}{wxwindowgetbestsize
}, except
718 in one thing. GetBestSize should return the minimum untruncated size of the
719 window, while this method will return the largest of BestSize and any user
720 specified minimum size. ie. it is the minimum size the window should currently
721 be drawn at, not the minimal size it can possibly tolerate.
724 \membersection{wxWindow::GetBackgroundColour
}\label{wxwindowgetbackgroundcolour
}
726 \constfunc{virtual wxColour
}{GetBackgroundColour
}{\void}
728 Returns the background colour of the window.
732 \helpref{wxWindow::SetBackgroundColour
}{wxwindowsetbackgroundcolour
},
\rtfsp
733 \helpref{wxWindow::SetForegroundColour
}{wxwindowsetforegroundcolour
},
\rtfsp
734 \helpref{wxWindow::GetForegroundColour
}{wxwindowgetforegroundcolour
}
736 \membersection{wxWindow::GetBackgroundStyle
}\label{wxwindowgetbackgroundstyle
}
738 \constfunc{virtual wxBackgroundStyle
}{GetBackgroundStyle
}{\void}
740 Returns the background style of the window. The background style indicates
741 whether background colour should be determined by the system (wxBG
\_STYLE\_SYSTEM),
742 be set to a specific colour (wxBG
\_STYLE\_COLOUR), or should be left to the
743 application to implement (wxBG
\_STYLE\_CUSTOM).
745 On GTK+, use of wxBG
\_STYLE\_CUSTOM allows the flicker-free drawing of a custom
746 background, such as a tiled bitmap. Currently the style has no effect on other platforms.
750 \helpref{wxWindow::SetBackgroundColour
}{wxwindowsetbackgroundcolour
},
\rtfsp
751 \helpref{wxWindow::GetForegroundColour
}{wxwindowgetforegroundcolour
},
\rtfsp
752 \helpref{wxWindow::SetBackgroundStyle
}{wxwindowsetbackgroundstyle
}
754 \membersection{wxWindow::GetBestFittingSize
}\label{wxwindowgetbestfittingsize
}
756 \constfunc{wxSize
}{GetBestFittingSize
}{\void}
758 Merges the window's best size into the min size and returns the result.
762 \helpref{wxWindow::GetBestSize
}{wxwindowgetbestsize
},
\rtfsp
763 \helpref{wxWindow::SetBestFittingSize
}{wxwindowsetbestfittingsize
},
\rtfsp
764 \helpref{wxWindow::SetSizeHints
}{wxwindowsetsizehints
}
767 \membersection{wxWindow::GetBestSize
}\label{wxwindowgetbestsize
}
769 \constfunc{wxSize
}{GetBestSize
}{\void}
771 This functions returns the best acceptable minimal size for the window. For
772 example, for a static control, it will be the minimal size such that the
773 control label is not truncated. For windows containing subwindows (typically
774 \helpref{wxPanel
}{wxpanel
}), the size returned by this function will be the
775 same as the size the window would have had after calling
776 \helpref{Fit
}{wxwindowfit
}.
779 \membersection{wxWindow::GetCapture
}\label{wxwindowgetcapture
}
781 \func{static wxWindow *
}{GetCapture
}{\void}
783 Returns the currently captured window.
787 \helpref{wxWindow::HasCapture
}{wxwindowhascapture
},
788 \helpref{wxWindow::CaptureMouse
}{wxwindowcapturemouse
},
789 \helpref{wxWindow::ReleaseMouse
}{wxwindowreleasemouse
},
790 \helpref{wxMouseCaptureChangedEvent
}{wxmousecapturechangedevent
}
793 \membersection{wxWindow::GetCaret
}\label{wxwindowgetcaret
}
795 \constfunc{wxCaret *
}{GetCaret
}{\void}
797 Returns the
\helpref{caret
}{wxcaret
} associated with the window.
800 \membersection{wxWindow::GetCharHeight
}\label{wxwindowgetcharheight
}
802 \constfunc{virtual int
}{GetCharHeight
}{\void}
804 Returns the character height for this window.
807 \membersection{wxWindow::GetCharWidth
}\label{wxwindowgetcharwidth
}
809 \constfunc{virtual int
}{GetCharWidth
}{\void}
811 Returns the average character width for this window.
814 \membersection{wxWindow::GetChildren
}\label{wxwindowgetchildren
}
816 \func{wxWindowList\&
}{GetChildren
}{\void}
818 \constfunc{const wxWindowList\&
}{GetChildren
}{\void}
820 Returns a reference to the list of the window's children.
\texttt{wxWindowList
}
821 is a type-safe
\helpref{wxList
}{wxlist
}-like class whose elements are of type
825 \membersection{wxWindow::GetClassDefaultAttributes
}\label{wxwindowgetclassdefaultattributes
}
827 \func{static wxVisualAttributes
}{GetClassDefaultAttributes
}{\param{wxWindowVariant
}{ variant =
\texttt{wxWINDOW
\_VARIANT\_NORMAL}}}
829 Returns the default font and colours which are used by the control. This is
830 useful if you want to use the same font or colour in your own control as in a
831 standard control -- which is a much better idea than hard coding specific
832 colours or fonts which might look completely out of place on the users
833 system, especially if it uses themes.
835 The
\arg{variant
} parameter is only relevant under Mac currently and is
836 ignore under other platforms. Under Mac, it will change the size of the
837 returned font. See
\helpref{wxWindow::SetWindowVariant
}{wxwindowsetwindowvariant
}
840 This static method is ``overridden'' in many derived classes and so calling,
841 for example,
\helpref{wxButton
}{wxbutton
}::GetClassDefaultAttributes() will typically
842 return the values appropriate for a button which will be normally different
843 from those returned by, say,
\helpref{wxListCtrl
}{wxlistctrl
}::GetClassDefaultAttributes().
845 The
\texttt{wxVisualAttributes
} structure has at least the fields
846 \texttt{font
},
\texttt{colFg
} and
\texttt{colBg
}. All of them may be invalid
847 if it was not possible to determine the default control appearance or,
848 especially for the background colour, if the field doesn't make sense as is
849 the case for
\texttt{colBg
} for the controls with themed background.
853 \helpref{InheritAttributes
}{wxwindowinheritattributes
}
856 \membersection{wxWindow::GetClientSize
}\label{wxwindowgetclientsize
}
858 \constfunc{void
}{GetClientSize
}{\param{int*
}{width
},
\param{int*
}{height
}}
860 \perlnote{In wxPerl this method takes no parameter and returns
861 a
2-element list
{\tt (width, height)
}.
}
863 \constfunc{wxSize
}{GetClientSize
}{\void}
865 This gets the size of the window `client area' in pixels.
866 The client area is the area which may be drawn on by the programmer,
867 excluding title bar, border, scrollbars, etc.
869 \wxheading{Parameters
}
871 \docparam{width
}{Receives the client width in pixels.
}
873 \docparam{height
}{Receives the client height in pixels.
}
875 \pythonnote{In place of a single overloaded method name, wxPython
876 implements the following methods:
\par
877 \indented{2cm
}{\begin{twocollist
}
878 \twocolitem{{\bf GetClientSizeTuple()
}}{Returns a
2-tuple of (width, height)
}
879 \twocolitem{{\bf GetClientSize()
}}{Returns a wxSize object
}
885 \helpref{GetSize
}{wxwindowgetsize
},
\rtfsp
886 \helpref{GetVirtualSize
}{wxwindowgetvirtualsize
}
890 \membersection{wxWindow::GetConstraints
}\label{wxwindowgetconstraints
}
892 \constfunc{wxLayoutConstraints*
}{GetConstraints
}{\void}
894 Returns a pointer to the window's layout constraints, or NULL if there are none.
897 \membersection{wxWindow::GetContainingSizer
}\label{wxwindowgetcontainingsizer
}
899 \constfunc{const wxSizer *
}{GetContainingSizer
}{\void}
901 Return the sizer that this window is a member of, if any, otherwise
905 \membersection{wxWindow::GetCursor
}\label{wxwindowgetcursor
}
907 \constfunc{const wxCursor\&
}{GetCursor
}{\void}
909 Return the cursor associated with this window.
913 \helpref{wxWindow::SetCursor
}{wxwindowsetcursor
}
916 \membersection{wxWindow::GetDefaultAttributes
}\label{wxwindowgetdefaultattributes
}
918 \constfunc{virtual wxVisualAttributes
}{GetDefaultAttributes
}{\void}
920 Currently this is the same as calling
921 \helpref{GetClassDefaultAttributes
}{wxwindowgetclassdefaultattributes
}(
\helpref{GetWindowVariant
}{wxwindowgetwindowvariant
}()).
923 One advantage of using this function compared to the static version is that
924 the call is automatically dispatched to the correct class (as usual with
925 virtual functions) and you don't have to specify the class name explicitly.
927 The other one is that in the future this function could return different
928 results, for example it might return a different font for an ``Ok'' button
929 than for a generic button if the users GUI is configured to show such buttons
930 in bold font. Of course, the down side is that it is impossible to call this
931 function without actually having an object to apply it to whereas the static
932 version can be used without having to create an object first.
935 \membersection{wxWindow::GetDropTarget
}\label{wxwindowgetdroptarget
}
937 \constfunc{wxDropTarget*
}{GetDropTarget
}{\void}
939 Returns the associated drop target, which may be NULL.
943 \helpref{wxWindow::SetDropTarget
}{wxwindowsetdroptarget
},
944 \helpref{Drag and drop overview
}{wxdndoverview
}
947 \membersection{wxWindow::GetEventHandler
}\label{wxwindowgeteventhandler
}
949 \constfunc{wxEvtHandler*
}{GetEventHandler
}{\void}
951 Returns the event handler for this window. By default, the window is its
956 \helpref{wxWindow::SetEventHandler
}{wxwindowseteventhandler
},
\rtfsp
957 \helpref{wxWindow::PushEventHandler
}{wxwindowpusheventhandler
},
\rtfsp
958 \helpref{wxWindow::PopEventHandler
}{wxwindowpusheventhandler
},
\rtfsp
959 \helpref{wxEvtHandler::ProcessEvent
}{wxevthandlerprocessevent
},
\rtfsp
960 \helpref{wxEvtHandler
}{wxevthandler
}\rtfsp
963 \membersection{wxWindow::GetExtraStyle
}\label{wxwindowgetextrastyle
}
965 \constfunc{long
}{GetExtraStyle
}{\void}
967 Returns the extra style bits for the window.
970 \membersection{wxWindow::GetFont
}\label{wxwindowgetfont
}
972 \constfunc{wxFont
}{GetFont
}{\void}
974 Returns the font for this window.
978 \helpref{wxWindow::SetFont
}{wxwindowsetfont
}
981 \membersection{wxWindow::GetForegroundColour
}\label{wxwindowgetforegroundcolour
}
983 \func{virtual wxColour
}{GetForegroundColour
}{\void}
985 Returns the foreground colour of the window.
989 The interpretation of foreground colour is open to interpretation according
990 to the window class; it may be the text colour or other colour, or it may not
995 \helpref{wxWindow::SetForegroundColour
}{wxwindowsetforegroundcolour
},
\rtfsp
996 \helpref{wxWindow::SetBackgroundColour
}{wxwindowsetbackgroundcolour
},
\rtfsp
997 \helpref{wxWindow::GetBackgroundColour
}{wxwindowgetbackgroundcolour
}
1000 \membersection{wxWindow::GetGrandParent
}\label{wxwindowgetgrandparent
}
1002 \constfunc{wxWindow*
}{GetGrandParent
}{\void}
1004 Returns the grandparent of a window, or NULL if there isn't one.
1007 \membersection{wxWindow::GetHandle
}\label{wxwindowgethandle
}
1009 \constfunc{void*
}{GetHandle
}{\void}
1011 Returns the platform-specific handle of the physical window. Cast it to an appropriate
1012 handle, such as
{\bf HWND
} for Windows,
{\bf Widget
} for Motif,
{\bf GtkWidget
} for GTK or
{\bf WinHandle
} for PalmOS.
1014 \pythonnote{This method will return an integer in wxPython.
}
1016 \perlnote{This method will return an integer in wxPerl.
}
1019 \membersection{wxWindow::GetHelpText
}\label{wxwindowgethelptext
}
1021 \constfunc{virtual wxString
}{GetHelpText
}{\void}
1023 Gets the help text to be used as context-sensitive help for this window.
1025 Note that the text is actually stored by the current
\helpref{wxHelpProvider
}{wxhelpprovider
} implementation,
1026 and not in the window object itself.
1028 \wxheading{See also
}
1030 \helpref{SetHelpText
}{wxwindowsethelptext
},
\helpref{wxHelpProvider
}{wxhelpprovider
}
1033 \membersection{wxWindow::GetId
}\label{wxwindowgetid
}
1035 \constfunc{int
}{GetId
}{\void}
1037 Returns the identifier of the window.
1041 Each window has an integer identifier. If the application has not provided one
1042 (or the default wxID
\_ANY) an unique identifier with a negative value will be generated.
1044 \wxheading{See also
}
1046 \helpref{wxWindow::SetId
}{wxwindowsetid
},
\rtfsp
1047 \helpref{Window identifiers
}{windowids
}
1050 \membersection{wxWindow::GetLabel
}\label{wxwindowgetlabel
}
1052 \constfunc{virtual wxString
}{GetLabel
}{\void}
1054 Generic way of getting a label from any window, for
1055 identification purposes.
1059 The interpretation of this function differs from class to class.
1060 For frames and dialogs, the value returned is the title. For buttons or static text controls, it is
1061 the button text. This function can be useful for meta-programs (such as testing
1062 tools or special-needs access programs) which need to identify windows
1065 \membersection{wxWindow::GetMaxSize
}\label{wxwindowgetmaxsize
}
1067 \constfunc{wxSize
}{GetMaxSize
}{\void}
1069 Returns the maximum size of the window, an indication to the sizer layout mechanism
1070 that this is the maximum possible size.
1072 \membersection{wxWindow::GetMinSize
}\label{wxwindowgetminsize
}
1074 \constfunc{wxSize
}{GetMinSize
}{\void}
1076 Returns the minimum size of the window, an indication to the sizer layout mechanism
1077 that this is the minimum required size.
1079 \membersection{wxWindow::GetName
}\label{wxwindowgetname
}
1081 \constfunc{virtual wxString
}{GetName
}{\void}
1083 Returns the window's name.
1087 This name is not guaranteed to be unique; it is up to the programmer to supply an appropriate
1088 name in the window constructor or via
\helpref{wxWindow::SetName
}{wxwindowsetname
}.
1090 \wxheading{See also
}
1092 \helpref{wxWindow::SetName
}{wxwindowsetname
}
1095 \membersection{wxWindow::GetParent
}\label{wxwindowgetparent
}
1097 \constfunc{virtual wxWindow*
}{GetParent
}{\void}
1099 Returns the parent of the window, or NULL if there is no parent.
1102 \membersection{wxWindow::GetPosition
}\label{wxwindowgetposition
}
1104 \constfunc{virtual void
}{GetPosition
}{\param{int*
}{x
},
\param{int*
}{y
}}
1106 \constfunc{wxPoint
}{GetPosition
}{\void}
1108 This gets the position of the window in pixels, relative to the parent window
1109 for the child windows or relative to the display origin for the top level
1112 \wxheading{Parameters
}
1114 \docparam{x
}{Receives the x position of the window.
}
1116 \docparam{y
}{Receives the y position of the window.
}
1118 \pythonnote{In place of a single overloaded method name, wxPython
1119 implements the following methods:
\par
1120 \indented{2cm
}{\begin{twocollist
}
1121 \twocolitem{{\bf GetPosition()
}}{Returns a wxPoint
}
1122 \twocolitem{{\bf GetPositionTuple()
}}{Returns a tuple (x, y)
}
1126 \perlnote{In wxPerl there are two methods instead of a single overloaded
1128 \indented{2cm
}{\begin{twocollist
}
1129 \twocolitem{{\bf GetPosition()
}}{Returns a Wx::Point
}
1130 \twocolitem{{\bf GetPositionXY()
}}{Returns a
2-element list
1136 \membersection{wxWindow::GetRect
}\label{wxwindowgetrect
}
1138 \constfunc{virtual wxRect
}{GetRect
}{\void}
1140 Returns the size and position of the window as a
\helpref{wxRect
}{wxrect
} object.
1143 \membersection{wxWindow::GetScrollPos
}\label{wxwindowgetscrollpos
}
1145 \func{virtual int
}{GetScrollPos
}{\param{int
}{orientation
}}
1147 Returns the built-in scrollbar position.
1149 \wxheading{See also
}
1151 See
\helpref{wxWindow::SetScrollbar
}{wxwindowsetscrollbar
}
1154 \membersection{wxWindow::GetScrollRange
}\label{wxwindowgetscrollrange
}
1156 \func{virtual int
}{GetScrollRange
}{\param{int
}{orientation
}}
1158 Returns the built-in scrollbar range.
1160 \wxheading{See also
}
1162 \helpref{wxWindow::SetScrollbar
}{wxwindowsetscrollbar
}
1165 \membersection{wxWindow::GetScrollThumb
}\label{wxwindowgetscrollthumb
}
1167 \func{virtual int
}{GetScrollThumb
}{\param{int
}{orientation
}}
1169 Returns the built-in scrollbar thumb size.
1171 \wxheading{See also
}
1173 \helpref{wxWindow::SetScrollbar
}{wxwindowsetscrollbar
}
1176 \membersection{wxWindow::GetSize
}\label{wxwindowgetsize
}
1178 \constfunc{void
}{GetSize
}{\param{int*
}{width
},
\param{int*
}{height
}}
1180 \constfunc{wxSize
}{GetSize
}{\void}
1182 This gets the size of the entire window in pixels,
1183 including title bar, border, scrollbars, etc.
1185 \wxheading{Parameters
}
1187 \docparam{width
}{Receives the window width.
}
1189 \docparam{height
}{Receives the window height.
}
1191 \pythonnote{In place of a single overloaded method name, wxPython
1192 implements the following methods:
\par
1193 \indented{2cm
}{\begin{twocollist
}
1194 \twocolitem{{\bf GetSize()
}}{Returns a wxSize
}
1195 \twocolitem{{\bf GetSizeTuple()
}}{Returns a
2-tuple (width, height)
}
1199 \perlnote{In wxPerl there are two methods instead of a single overloaded
1201 \indented{2cm
}{\begin{twocollist
}
1202 \twocolitem{{\bf GetSize()
}}{Returns a Wx::Size
}
1203 \twocolitem{{\bf GetSizeWH()
}}{Returns a
2-element list
1204 {\tt ( width, height )
}}
1208 \wxheading{See also
}
1210 \helpref{GetClientSize
}{wxwindowgetclientsize
},
\rtfsp
1211 \helpref{GetVirtualSize
}{wxwindowgetvirtualsize
}
1214 \membersection{wxWindow::GetSizer
}\label{wxwindowgetsizer
}
1216 \constfunc{wxSizer *
}{GetSizer
}{\void}
1218 Return the sizer associated with the window by a previous call to
1219 \helpref{SetSizer()
}{wxwindowsetsizer
} or
{\tt NULL
}.
1222 \membersection{wxWindow::GetTextExtent
}\label{wxwindowgettextextent
}
1224 \constfunc{virtual void
}{GetTextExtent
}{\param{const wxString\&
}{string
},
\param{int*
}{x
},
\param{int*
}{y
},
1225 \param{int*
}{descent = NULL
},
\param{int*
}{externalLeading = NULL
},
1226 \param{const wxFont*
}{font = NULL
},
\param{bool
}{ use16 =
{\tt false
}}}
1228 Gets the dimensions of the string as it would be drawn on the
1229 window with the currently selected font.
1231 \wxheading{Parameters
}
1233 \docparam{string
}{String whose extent is to be measured.
}
1235 \docparam{x
}{Return value for width.
}
1237 \docparam{y
}{Return value for height.
}
1239 \docparam{descent
}{Return value for descent (optional).
}
1241 \docparam{externalLeading
}{Return value for external leading (optional).
}
1243 \docparam{font
}{Font to use instead of the current window font (optional).
}
1245 \docparam{use16
}{If
{\tt true
},
{\it string
} contains
16-bit characters. The default is
{\tt false
}.
}
1247 \pythonnote{In place of a single overloaded method name, wxPython
1248 implements the following methods:
\par
1249 \indented{2cm
}{\begin{twocollist
}
1250 \twocolitem{{\bf GetTextExtent(string)
}}{Returns a
2-tuple, (width, height)
}
1251 \twocolitem{{\bf GetFullTextExtent(string, font=NULL)
}}{Returns a
1252 4-tuple, (width, height, descent, externalLeading)
}
1256 \perlnote{In wxPerl this method takes only the
{\tt string
} and optionally
1257 {\tt font
} parameters, and returns a
4-element list
1258 {\tt ( x, y, descent, externalLeading )
}.
}
1261 \membersection{wxWindow::GetToolTip
}\label{wxwindowgettooltip
}
1263 \constfunc{wxToolTip*
}{GetToolTip
}{\void}
1265 Get the associated tooltip or NULL if none.
1268 \membersection{wxWindow::GetUpdateRegion
}\label{wxwindowgetupdateregion
}
1270 \constfunc{virtual wxRegion
}{GetUpdateRegion
}{\void}
1272 Returns the region specifying which parts of the window have been damaged. Should
1273 only be called within an
\helpref{wxPaintEvent
}{wxpaintevent
} handler.
1275 \wxheading{See also
}
1277 \helpref{wxRegion
}{wxregion
},
\rtfsp
1278 \helpref{wxRegionIterator
}{wxregioniterator
}
1281 \membersection{wxWindow::GetValidator
}\label{wxwindowgetvalidator
}
1283 \constfunc{wxValidator*
}{GetValidator
}{\void}
1285 Returns a pointer to the current validator for the window, or NULL if there is none.
1288 \membersection{wxWindow::GetVirtualSize
}\label{wxwindowgetvirtualsize
}
1290 \constfunc{void
}{GetVirtualSize
}{\param{int*
}{width
},
\param{int*
}{height
}}
1292 \constfunc{wxSize
}{GetVirtualSize
}{\void}
1294 This gets the virtual size of the window in pixels. By default it
1295 returns the client size of the window, but after a call to
1296 \helpref{SetVirtualSize
}{wxwindowsetvirtualsize
} it will return
1299 \wxheading{Parameters
}
1301 \docparam{width
}{Receives the window virtual width.
}
1303 \docparam{height
}{Receives the window virtual height.
}
1305 \helpref{GetSize
}{wxwindowgetsize
},
\rtfsp
1306 \helpref{GetClientSize
}{wxwindowgetclientsize
}
1309 \membersection{wxWindow::GetWindowStyleFlag
}\label{wxwindowgetwindowstyleflag
}
1311 \constfunc{long
}{GetWindowStyleFlag
}{\void}
1313 Gets the window style that was passed to the constructor or
{\bf Create
}
1314 method.
{\bf GetWindowStyle()
} is another name for the same function.
1317 \membersection{wxWindow::GetWindowVariant
}\label{wxwindowgetwindowvariant
}
1319 \constfunc{wxWindowVariant
}{GetWindowVariant
}{\void}
1321 Returns the value previously passed to
1322 \helpref{wxWindow::SetWindowVariant
}{wxwindowsetwindowvariant
}.
1325 \membersection{wxWindow::HasCapture
}\label{wxwindowhascapture
}
1327 \constfunc{virtual bool
}{HasCapture
}{\void}
1329 Returns
{\tt true
} if this window has the current mouse capture.
1331 \wxheading{See also
}
1333 \helpref{wxWindow::CaptureMouse
}{wxwindowcapturemouse
},
1334 \helpref{wxWindow::ReleaseMouse
}{wxwindowreleasemouse
},
1335 \helpref{wxMouseCaptureChangedEvent
}{wxmousecapturechangedevent
}
1338 \membersection{wxWindow::HasFlag
}\label{wxwindowhasflag
}
1340 \constfunc{bool
}{HasFlag
}{\param{int
}{flag
}}
1342 Returns
\texttt{true
} if the window has the given
\arg{flag
} bit set.
1345 \membersection{wxWindow::HasScrollbar
}\label{wxwindowhasscrollbar
}
1347 \constfunc{virtual bool
}{HasScrollbar
}{\param{int
}{orient
}}
1349 Returns
{\tt true
} if this window has a scroll bar for this orientation.
1351 \wxheading{Parameters
}
1353 \docparam{orient
}{Orientation to check, either
{\tt wxHORIZONTAL
} or
{\tt wxVERTICAL
}.
}
1356 \membersection{wxWindow::HasTransparentBackground
}\label{wxwindowhastransparentbackground
}
1358 \constfunc{virtual bool
}{HasTransparentBackground
}{\void}
1360 Returns
\true if this window background is transparent (as, for example, for
1361 wxStaticText) and should show the parent window background.
1363 This method is mostly used internally by the library itself and you normally
1364 shouldn't have to call it. You may, however, have to override it in your
1365 wxWindow-derived class to ensure that background is painted correctly.
1368 \membersection{wxWindow::Hide
}\label{wxwindowhide
}
1370 \func{bool
}{Hide
}{\void}
1372 Equivalent to calling
\helpref{Show
}{wxwindowshow
}(
{\tt false
}).
1375 \membersection{wxWindow::InheritAttributes
}\label{wxwindowinheritattributes
}
1377 \func{void
}{InheritAttributes
}{\void}
1379 This function is (or should be, in case of custom controls) called during
1380 window creation to intelligently set up the window visual attributes, that is
1381 the font and the foreground and background colours.
1383 By ``intelligently'' the following is meant: by default, all windows use their
1384 own
\helpref{default
}{wxwindowgetclassdefaultattributes
} attributes. However
1385 if some of the parents attributes are explicitly (that is, using
1386 \helpref{SetFont
}{wxwindowsetfont
} and not
1387 \helpref{SetOwnFont
}{wxwindowsetownfont
}) changed
\emph{and
} if the
1388 corresponding attribute hadn't been explicitly set for this window itself,
1389 then this window takes the same value as used by the parent. In addition, if
1390 the window overrides
\helpref{ShouldInheritColours
}{wxwindowshouldinheritcolours
}
1391 to return
\false, the colours will not be changed no matter what and only the
1394 This rather complicated logic is necessary in order to accommodate the
1395 different usage scenarios. The most common one is when all default attributes
1396 are used and in this case, nothing should be inherited as in modern GUIs
1397 different controls use different fonts (and colours) than their siblings so
1398 they can't inherit the same value from the parent. However it was also deemed
1399 desirable to allow to simply change the attributes of all children at once by
1400 just changing the font or colour of their common parent, hence in this case we
1401 do inherit the parents attributes.
1404 \membersection{wxWindow::InitDialog
}\label{wxwindowinitdialog
}
1406 \func{void
}{InitDialog
}{\void}
1408 Sends an
{\tt wxEVT
\_INIT\_DIALOG} event, whose handler usually transfers data
1409 to the dialog via validators.
1412 \membersection{wxWindow::InvalidateBestSize
}\label{wxwindowinvalidatebestsize
}
1414 \func{void
}{InvalidateBestSize
}{\void}
1416 Resets the cached best size value so it will be recalculated the next time it is needed.
1419 \membersection{wxWindow::IsEnabled
}\label{wxwindowisenabled
}
1421 \constfunc{virtual bool
}{IsEnabled
}{\void}
1423 Returns
{\tt true
} if the window is enabled for input,
{\tt false
} otherwise.
1425 \wxheading{See also
}
1427 \helpref{wxWindow::Enable
}{wxwindowenable
}
1430 \membersection{wxWindow::IsExposed
}\label{wxwindowisexposed
}
1432 \constfunc{bool
}{IsExposed
}{\param{int
}{x
},
\param{int
}{y
}}
1434 \constfunc{bool
}{IsExposed
}{\param{wxPoint
}{\&pt
}}
1436 \constfunc{bool
}{IsExposed
}{\param{int
}{x
},
\param{int
}{y
},
\param{int
}{w
},
\param{int
}{h
}}
1438 \constfunc{bool
}{IsExposed
}{\param{wxRect
}{\&rect
}}
1440 Returns
{\tt true
} if the given point or rectangle area has been exposed since the
1441 last repaint. Call this in an paint event handler to optimize redrawing by
1442 only redrawing those areas, which have been exposed.
1444 \pythonnote{In place of a single overloaded method name, wxPython
1445 implements the following methods:
\par
1446 \indented{2cm
}{\begin{twocollist
}
1447 \twocolitem{{\bf IsExposed(x,y, w=
0,h=
0)
}}{}
1448 \twocolitem{{\bf IsExposedPoint(pt)
}}{}
1449 \twocolitem{{\bf IsExposedRect(rect)
}}{}
1453 \membersection{wxWindow::IsRetained
}\label{wxwindowisretained
}
1455 \constfunc{virtual bool
}{IsRetained
}{\void}
1457 Returns
{\tt true
} if the window is retained,
{\tt false
} otherwise.
1461 Retained windows are only available on X platforms.
1464 \membersection{wxWindow::IsShown
}\label{wxwindowisshown
}
1466 \constfunc{virtual bool
}{IsShown
}{\void}
1468 Returns
{\tt true
} if the window is shown,
{\tt false
} if it has been hidden.
1471 \membersection{wxWindow::IsTopLevel
}\label{wxwindowistoplevel
}
1473 \constfunc{bool
}{IsTopLevel
}{\void}
1475 Returns
{\tt true
} if the given window is a top-level one. Currently all frames and
1476 dialogs are considered to be top-level windows (even if they have a parent
1480 \membersection{wxWindow::Layout
}\label{wxwindowlayout
}
1482 \func{void
}{Layout
}{\void}
1484 Invokes the constraint-based layout algorithm or the sizer-based algorithm
1487 See
\helpref{wxWindow::SetAutoLayout
}{wxwindowsetautolayout
}: when auto
1488 layout is on, this function gets called automatically when the window is resized.
1491 \membersection{wxWindow::LineDown
}\label{wxwindowlinedown
}
1493 This is just a wrapper for
\helpref{ScrollLines
}{wxwindowscrolllines
}$(
1)$.
1496 \membersection{wxWindow::LineUp
}\label{wxwindowlineup
}
1498 This is just a wrapper for
\helpref{ScrollLines
}{wxwindowscrolllines
}$(-
1)$.
1501 \membersection{wxWindow::Lower
}\label{wxwindowlower
}
1503 \func{void
}{Lower
}{\void}
1505 Lowers the window to the bottom of the window hierarchy (z-order).
1507 \wxheading{See also
}
1509 \helpref{Raise
}{wxwindowraise
}
1512 \membersection{wxWindow::MakeModal
}\label{wxwindowmakemodal
}
1514 \func{virtual void
}{MakeModal
}{\param{bool
}{flag
}}
1516 Disables all other windows in the application so that
1517 the user can only interact with this window.
1519 \wxheading{Parameters
}
1521 \docparam{flag
}{If
{\tt true
}, this call disables all other windows in the application so that
1522 the user can only interact with this window. If
{\tt false
}, the effect is reversed.
}
1525 \membersection{wxWindow::Move
}\label{wxwindowmove
}
1527 \func{void
}{Move
}{\param{int
}{ x
},
\param{int
}{ y
}}
1529 \func{void
}{Move
}{\param{const wxPoint\&
}{ pt
}}
1531 Moves the window to the given position.
1533 \wxheading{Parameters
}
1535 \docparam{x
}{Required x position.
}
1537 \docparam{y
}{Required y position.
}
1539 \docparam{pt
}{\helpref{wxPoint
}{wxpoint
} object representing the position.
}
1543 Implementations of SetSize can also implicitly implement the
1544 wxWindow::Move function, which is defined in the base wxWindow class
1548 SetSize(x, y, wxDefaultCoord, wxDefaultCoord, wxSIZE_USE_EXISTING);
1551 \wxheading{See also
}
1553 \helpref{wxWindow::SetSize
}{wxwindowsetsize
}
1555 \pythonnote{In place of a single overloaded method name, wxPython
1556 implements the following methods:
\par
1557 \indented{2cm
}{\begin{twocollist
}
1558 \twocolitem{{\bf Move(point)
}}{Accepts a wxPoint
}
1559 \twocolitem{{\bf MoveXY(x, y)
}}{Accepts a pair of integers
}
1564 \membersection{wxWindow::MoveAfterInTabOrder
}\label{wxwindowmoveafterintaborder
}
1566 \func{void
}{MoveAfterInTabOrder
}{\param{wxWindow *
}{win
}}
1568 Moves this window in the tab navigation order after the specified
\arg{win
}.
1569 This means that when the user presses
\texttt{TAB
} key on that other window,
1570 the focus switches to this window.
1572 Default tab order is the same as creation order, this function and
1573 \helpref{MoveBeforeInTabOrder()
}{wxwindowmovebeforeintaborder
} allow to change
1574 it after creating all the windows.
1576 \wxheading{Parameters
}
1578 \docparam{win
}{A sibling of this window which should precede it in tab order,
1582 \membersection{wxWindow::MoveBeforeInTabOrder
}\label{wxwindowmovebeforeintaborder
}
1584 \func{void
}{MoveBeforeInTabOrder
}{\param{wxWindow *
}{win
}}
1586 Same as
\helpref{MoveAfterInTabOrder
}{wxwindowmoveafterintaborder
} except that
1587 it inserts this window just before
\arg{win
} instead of putting it right after
1591 \membersection{wxWindow::Navigate
}\label{wxwindownavigate
}
1593 \func{bool
}{Navigate
}{\param{int
}{ flags = wxNavigationKeyEvent::IsForward
}}
1595 Does keyboard navigation from this window to another, by sending
1596 a wxNavigationKeyEvent.
1598 \wxheading{Parameters
}
1600 \docparam{flags
}{A combination of wxNavigationKeyEvent::IsForward and wxNavigationKeyEvent::WinChange.
}
1604 You may wish to call this from a text control custom keypress handler to do the default
1605 navigation behaviour for the tab key, since the standard default behaviour for
1606 a multiline text control with the wxTE
\_PROCESS\_TAB style is to insert a tab
1607 and not navigate to the next control.
1609 %% VZ: wxWindow::OnXXX() functions should not be documented but I'm leaving
1610 %% the old docs here in case we want to move any still needed bits to
1611 %% the right location (i.e. probably the corresponding events docs)
1613 %% \membersection{wxWindow::OnActivate}\label{wxwindowonactivate}
1615 %% \func{void}{OnActivate}{\param{wxActivateEvent\&}{ event}}
1617 %% Called when a window is activated or deactivated.
1619 %% \wxheading{Parameters}
1621 %% \docparam{event}{Object containing activation information.}
1623 %% \wxheading{Remarks}
1625 %% If the window is being activated, \helpref{wxActivateEvent::GetActive}{wxactivateeventgetactive} returns {\tt true},
1626 %% otherwise it returns {\tt false} (it is being deactivated).
1628 %% \wxheading{See also}
1630 %% \helpref{wxActivateEvent}{wxactivateevent},\rtfsp
1631 %% \helpref{Event handling overview}{eventhandlingoverview}
1633 %% \membersection{wxWindow::OnChar}\label{wxwindowonchar}
1635 %% \func{void}{OnChar}{\param{wxKeyEvent\&}{ event}}
1637 %% Called when the user has pressed a key that is not a modifier (SHIFT, CONTROL or ALT).
1639 %% \wxheading{Parameters}
1641 %% \docparam{event}{Object containing keypress information. See \helpref{wxKeyEvent}{wxkeyevent} for
1642 %% details about this class.}
1644 %% \wxheading{Remarks}
1646 %% This member function is called in response to a keypress. To intercept this event,
1647 %% use the EVT\_CHAR macro in an event table definition. Your {\bf OnChar} handler may call this
1648 %% default function to achieve default keypress functionality.
1650 %% Note that the ASCII values do not have explicit key codes: they are passed as ASCII
1653 %% Note that not all keypresses can be intercepted this way. If you wish to intercept modifier
1654 %% keypresses, then you will need to use \helpref{wxWindow::OnKeyDown}{wxwindowonkeydown} or
1655 %% \helpref{wxWindow::OnKeyUp}{wxwindowonkeyup}.
1657 %% Most, but not all, windows allow keypresses to be intercepted.
1659 %% {\bf Tip:} be sure to call {\tt event.Skip()} for events that you don't process in this function,
1660 %% otherwise menu shortcuts may cease to work under Windows.
1662 %% \wxheading{See also}
1664 %% \helpref{wxWindow::OnKeyDown}{wxwindowonkeydown}, \helpref{wxWindow::OnKeyUp}{wxwindowonkeyup},\rtfsp
1665 %% \helpref{wxKeyEvent}{wxkeyevent}, \helpref{wxWindow::OnCharHook}{wxwindowoncharhook},\rtfsp
1666 %% \helpref{Event handling overview}{eventhandlingoverview}
1668 %% \membersection{wxWindow::OnCharHook}\label{wxwindowoncharhook}
1670 %% \func{void}{OnCharHook}{\param{wxKeyEvent\&}{ event}}
1672 %% This member is called to allow the window to intercept keyboard events
1673 %% before they are processed by child windows.
1675 %% \wxheading{Parameters}
1677 %% \docparam{event}{Object containing keypress information. See \helpref{wxKeyEvent}{wxkeyevent} for
1678 %% details about this class.}
1680 %% \wxheading{Remarks}
1682 %% This member function is called in response to a keypress, if the window is active. To intercept this event,
1683 %% use the EVT\_CHAR\_HOOK macro in an event table definition. If you do not process a particular
1684 %% keypress, call \helpref{wxEvent::Skip}{wxeventskip} to allow default processing.
1686 %% An example of using this function is in the implementation of escape-character processing for wxDialog,
1687 %% where pressing ESC dismisses the dialog by {\bf OnCharHook} 'forging' a cancel button press event.
1689 %% Note that the ASCII values do not have explicit key codes: they are passed as ASCII
1692 %% This function is only relevant to top-level windows (frames and dialogs), and under
1693 %% Windows only. Under GTK the normal EVT\_CHAR\_ event has the functionality, i.e.
1694 %% you can intercept it, and if you don't call \helpref{wxEvent::Skip}{wxeventskip}
1695 %% the window won't get the event.
1697 %% \wxheading{See also}
1699 %% \helpref{wxKeyEvent}{wxkeyevent},\rtfsp
1700 %% \helpref{wxWindow::OnCharHook}{wxwindowoncharhook},\rtfsp
1701 %% %% GD: OnXXX functions are not documented
1702 %% %%\helpref{wxApp::OnCharHook}{wxapponcharhook},\rtfsp
1703 %% \helpref{Event handling overview}{eventhandlingoverview}
1705 %% \membersection{wxWindow::OnCommand}\label{wxwindowoncommand}
1707 %% \func{virtual void}{OnCommand}{\param{wxEvtHandler\& }{object}, \param{wxCommandEvent\& }{event}}
1709 %% This virtual member function is called if the control does not handle the command event.
1711 %% \wxheading{Parameters}
1713 %% \docparam{object}{Object receiving the command event.}
1715 %% \docparam{event}{Command event}
1717 %% \wxheading{Remarks}
1719 %% This virtual function is provided mainly for backward compatibility. You can also intercept commands
1720 %% from child controls by using an event table, with identifiers or identifier ranges to identify
1721 %% the control(s) in question.
1723 %% \wxheading{See also}
1725 %% \helpref{wxCommandEvent}{wxcommandevent},\rtfsp
1726 %% \helpref{Event handling overview}{eventhandlingoverview}
1728 %% \membersection{wxWindow::OnClose}\label{wxwindowonclose}
1730 %% \func{virtual bool}{OnClose}{\void}
1732 %% Called when the user has tried to close a a frame
1733 %% or dialog box using the window manager (X) or system menu (Windows).
1735 %% {\bf Note:} This is an obsolete function.
1736 %% It is superseded by the \helpref{wxWindow::OnCloseWindow}{wxwindowonclosewindow} event
1739 %% \wxheading{Return value}
1741 %% If {\tt true} is returned by OnClose, the window will be deleted by the system, otherwise the
1742 %% attempt will be ignored. Do not delete the window from within this handler, although
1743 %% you may delete other windows.
1745 %% \wxheading{See also}
1747 %% \helpref{Window deletion overview}{windowdeletionoverview},\rtfsp
1748 %% \helpref{wxWindow::Close}{wxwindowclose},\rtfsp
1749 %% \helpref{wxWindow::OnCloseWindow}{wxwindowonclosewindow},\rtfsp
1750 %% \helpref{wxCloseEvent}{wxcloseevent}
1752 %% \membersection{wxWindow::OnKeyDown}\label{wxwindowonkeydown}
1754 %% \func{void}{OnKeyDown}{\param{wxKeyEvent\&}{ event}}
1756 %% Called when the user has pressed a key, before it is translated into an ASCII value using other
1757 %% modifier keys that might be pressed at the same time.
1759 %% \wxheading{Parameters}
1761 %% \docparam{event}{Object containing keypress information. See \helpref{wxKeyEvent}{wxkeyevent} for
1762 %% details about this class.}
1764 %% \wxheading{Remarks}
1766 %% This member function is called in response to a key down event. To intercept this event,
1767 %% use the EVT\_KEY\_DOWN macro in an event table definition. Your {\bf OnKeyDown} handler may call this
1768 %% default function to achieve default keypress functionality.
1770 %% Note that not all keypresses can be intercepted this way. If you wish to intercept special
1771 %% keys, such as shift, control, and function keys, then you will need to use \helpref{wxWindow::OnKeyDown}{wxwindowonkeydown} or
1772 %% \helpref{wxWindow::OnKeyUp}{wxwindowonkeyup}.
1774 %% Most, but not all, windows allow keypresses to be intercepted.
1776 %% {\bf Tip:} be sure to call {\tt event.Skip()} for events that you don't process in this function,
1777 %% otherwise menu shortcuts may cease to work under Windows.
1779 %% \wxheading{See also}
1781 %% \helpref{wxWindow::OnChar}{wxwindowonchar}, \helpref{wxWindow::OnKeyUp}{wxwindowonkeyup},\rtfsp
1782 %% \helpref{wxKeyEvent}{wxkeyevent}, \helpref{wxWindow::OnCharHook}{wxwindowoncharhook},\rtfsp
1783 %% \helpref{Event handling overview}{eventhandlingoverview}
1785 %% \membersection{wxWindow::OnKeyUp}\label{wxwindowonkeyup}
1787 %% \func{void}{OnKeyUp}{\param{wxKeyEvent\&}{ event}}
1789 %% Called when the user has released a key.
1791 %% \wxheading{Parameters}
1793 %% \docparam{event}{Object containing keypress information. See \helpref{wxKeyEvent}{wxkeyevent} for
1794 %% details about this class.}
1796 %% \wxheading{Remarks}
1798 %% This member function is called in response to a key up event. To intercept this event,
1799 %% use the EVT\_KEY\_UP macro in an event table definition. Your {\bf OnKeyUp} handler may call this
1800 %% default function to achieve default keypress functionality.
1802 %% Note that not all keypresses can be intercepted this way. If you wish to intercept special
1803 %% keys, such as shift, control, and function keys, then you will need to use \helpref{wxWindow::OnKeyDown}{wxwindowonkeydown} or
1804 %% \helpref{wxWindow::OnKeyUp}{wxwindowonkeyup}.
1806 %% Most, but not all, windows allow key up events to be intercepted.
1808 %% \wxheading{See also}
1810 %% \helpref{wxWindow::OnChar}{wxwindowonchar}, \helpref{wxWindow::OnKeyDown}{wxwindowonkeydown},\rtfsp
1811 %% \helpref{wxKeyEvent}{wxkeyevent}, \helpref{wxWindow::OnCharHook}{wxwindowoncharhook},\rtfsp
1812 %% \helpref{Event handling overview}{eventhandlingoverview}
1814 %% \membersection{wxWindow::OnInitDialog}\label{wxwindowoninitdialog}
1816 %% \func{void}{OnInitDialog}{\param{wxInitDialogEvent\&}{ event}}
1818 %% Default handler for the wxEVT\_INIT\_DIALOG event. Calls \helpref{wxWindow::TransferDataToWindow}{wxwindowtransferdatatowindow}.
1820 %% \wxheading{Parameters}
1822 %% \docparam{event}{Dialog initialisation event.}
1824 %% \wxheading{Remarks}
1826 %% Gives the window the default behaviour of transferring data to child controls via
1827 %% the validator that each control has.
1829 %% \wxheading{See also}
1831 %% \helpref{wxValidator}{wxvalidator}, \helpref{wxWindow::TransferDataToWindow}{wxwindowtransferdatatowindow}
1833 %% \membersection{wxWindow::OnMenuHighlight}\label{wxwindowonmenuhighlight}
1835 %% \func{void}{OnMenuHighlight}{\param{wxMenuEvent\& }{event}}
1837 %% Called when a menu select is received from a menu bar: that is, the
1838 %% mouse cursor is over a menu item, but the left mouse button has not been
1841 %% \wxheading{Parameters}
1843 %% \docparam{event}{The menu highlight event. For more information, see \helpref{wxMenuEvent}{wxmenuevent}.}
1845 %% \wxheading{Remarks}
1847 %% You can choose any member function to receive
1848 %% menu select events, using the EVT\_MENU\_HIGHLIGHT macro for individual menu items or EVT\_MENU\_HIGHLIGHT\_ALL macro
1849 %% for all menu items.
1851 %% The default implementation for \helpref{wxFrame::OnMenuHighlight}{wxframeonmenuhighlight} displays help
1852 %% text in the first field of the status bar.
1854 %% This function was known as {\bf OnMenuSelect} in earlier versions of wxWidgets, but this was confusing
1855 %% since a selection is normally a left-click action.
1857 %% \wxheading{See also}
1859 %% \helpref{wxMenuEvent}{wxmenuevent},\rtfsp
1860 %% \helpref{Event handling overview}{eventhandlingoverview}
1863 %% \membersection{wxWindow::OnMouseEvent}\label{wxwindowonmouseevent}
1865 %% \func{void}{OnMouseEvent}{\param{wxMouseEvent\&}{ event}}
1867 %% Called when the user has initiated an event with the
1870 %% \wxheading{Parameters}
1872 %% \docparam{event}{The mouse event. See \helpref{wxMouseEvent}{wxmouseevent} for
1875 %% \wxheading{Remarks}
1877 %% Most, but not all, windows respond to this event.
1879 %% To intercept this event, use the EVT\_MOUSE\_EVENTS macro in an event table definition, or individual
1880 %% mouse event macros such as EVT\_LEFT\_DOWN.
1882 %% \wxheading{See also}
1884 %% \helpref{wxMouseEvent}{wxmouseevent},\rtfsp
1885 %% \helpref{Event handling overview}{eventhandlingoverview}
1887 %% \membersection{wxWindow::OnMove}\label{wxwindowonmove}
1889 %% \func{void}{OnMove}{\param{wxMoveEvent\& }{event}}
1891 %% Called when a window is moved.
1893 %% \wxheading{Parameters}
1895 %% \docparam{event}{The move event. For more information, see \helpref{wxMoveEvent}{wxmoveevent}.}
1897 %% \wxheading{Remarks}
1899 %% Use the EVT\_MOVE macro to intercept move events.
1901 %% \wxheading{Remarks}
1903 %% Not currently implemented.
1905 %% \wxheading{See also}
1907 %% \helpref{wxMoveEvent}{wxmoveevent},\rtfsp
1908 %% \helpref{wxFrame::OnSize}{wxframeonsize},\rtfsp
1909 %% \helpref{Event handling overview}{eventhandlingoverview}
1911 %% \membersection{wxWindow::OnPaint}\label{wxwindowonpaint}
1913 %% \func{void}{OnPaint}{\param{wxPaintEvent\& }{event}}
1915 %% Sent to the event handler when the window must be refreshed.
1917 %% \wxheading{Parameters}
1919 %% \docparam{event}{Paint event. For more information, see \helpref{wxPaintEvent}{wxpaintevent}.}
1921 %% \wxheading{Remarks}
1923 %% Use the EVT\_PAINT macro in an event table definition to intercept paint events.
1925 %% Note that In a paint event handler, the application must {\it always} create a \helpref{wxPaintDC}{wxpaintdc} object,
1926 %% even if you do not use it. Otherwise, under MS Windows, refreshing for this and other windows will go wrong.
1932 %% void MyWindow::OnPaint(wxPaintEvent\& event)
1934 %% wxPaintDC dc(this);
1936 %% DrawMyDocument(dc);
1941 %% You can optimize painting by retrieving the rectangles
1942 %% that have been damaged and only repainting these. The rectangles are in
1943 %% terms of the client area, and are unscrolled, so you will need to do
1944 %% some calculations using the current view position to obtain logical,
1947 %% Here is an example of using the \helpref{wxRegionIterator}{wxregioniterator} class:
1951 %% // Called when window needs to be repainted.
1952 %% void MyWindow::OnPaint(wxPaintEvent\& event)
1954 %% wxPaintDC dc(this);
1956 %% // Find Out where the window is scrolled to
1957 %% int vbX,vbY; // Top left corner of client
1958 %% GetViewStart(&vbX,&vbY);
1960 %% int vX,vY,vW,vH; // Dimensions of client area in pixels
1961 %% wxRegionIterator upd(GetUpdateRegion()); // get the update rect list
1970 %% // Alternatively we can do this:
1972 %% // upd.GetRect(&rect);
1974 %% // Repaint this rectangle
1983 %% \wxheading{See also}
1985 %% \helpref{wxPaintEvent}{wxpaintevent},\rtfsp
1986 %% \helpref{wxPaintDC}{wxpaintdc},\rtfsp
1987 %% \helpref{Event handling overview}{eventhandlingoverview}
1989 %% \membersection{wxWindow::OnScroll}\label{wxwindowonscroll}
1991 %% \func{void}{OnScroll}{\param{wxScrollWinEvent\& }{event}}
1993 %% Called when a scroll window event is received from one of the window's built-in scrollbars.
1995 %% \wxheading{Parameters}
1997 %% \docparam{event}{Command event. Retrieve the new scroll position by
1998 %% calling \helpref{wxScrollEvent::GetPosition}{wxscrolleventgetposition}, and the
1999 %% scrollbar orientation by calling \helpref{wxScrollEvent::GetOrientation}{wxscrolleventgetorientation}.}
2001 %% \wxheading{Remarks}
2003 %% Note that it is not possible to distinguish between horizontal and vertical scrollbars
2004 %% until the function is executing (you can't have one function for vertical, another
2005 %% for horizontal events).
2007 %% \wxheading{See also}
2009 %% \helpref{wxScrollWinEvent}{wxscrollwinevent},\rtfsp
2010 %% \helpref{Event handling overview}{eventhandlingoverview}
2012 %% \membersection{wxWindow::OnSetFocus}\label{wxwindowonsetfocus}
2014 %% \func{void}{OnSetFocus}{\param{wxFocusEvent\& }{event}}
2016 %% Called when a window's focus is being set.
2018 %% \wxheading{Parameters}
2020 %% \docparam{event}{The focus event. For more information, see \helpref{wxFocusEvent}{wxfocusevent}.}
2022 %% \wxheading{Remarks}
2024 %% To intercept this event, use the macro EVT\_SET\_FOCUS in an event table definition.
2026 %% Most, but not all, windows respond to this event.
2028 %% \wxheading{See also}
2030 %% \helpref{wxFocusEvent}{wxfocusevent}, \helpref{wxWindow::OnKillFocus}{wxwindowonkillfocus},\rtfsp
2031 %% \helpref{Event handling overview}{eventhandlingoverview}
2033 %% \membersection{wxWindow::OnSize}\label{wxwindowonsize}
2035 %% \func{void}{OnSize}{\param{wxSizeEvent\& }{event}}
2037 %% Called when the window has been resized. This is not a virtual function; you should
2038 %% provide your own non-virtual OnSize function and direct size events to it using EVT\_SIZE
2039 %% in an event table definition.
2041 %% \wxheading{Parameters}
2043 %% \docparam{event}{Size event. For more information, see \helpref{wxSizeEvent}{wxsizeevent}.}
2045 %% \wxheading{Remarks}
2047 %% You may wish to use this for frames to resize their child windows as appropriate.
2049 %% Note that the size passed is of
2050 %% the whole window: call \helpref{wxWindow::GetClientSize}{wxwindowgetclientsize} for the area which may be
2051 %% used by the application.
2053 %% When a window is resized, usually only a small part of the window is damaged and you
2054 %% may only need to repaint that area. However, if your drawing depends on the size of the window,
2055 %% you may need to clear the DC explicitly and repaint the whole window. In which case, you
2056 %% may need to call \helpref{wxWindow::Refresh}{wxwindowrefresh} to invalidate the entire window.
2058 %% \wxheading{See also}
2060 %% \helpref{wxSizeEvent}{wxsizeevent},\rtfsp
2061 %% \helpref{Event handling overview}{eventhandlingoverview}
2063 %% \membersection{wxWindow::OnSysColourChanged}\label{wxwindowonsyscolourchanged}
2065 %% \func{void}{OnSysColourChanged}{\param{wxOnSysColourChangedEvent\& }{event}}
2067 %% Called when the user has changed the system colours. Windows only.
2069 %% \wxheading{Parameters}
2071 %% \docparam{event}{System colour change event. For more information, see \helpref{wxSysColourChangedEvent}{wxsyscolourchangedevent}.}
2073 %% \wxheading{See also}
2075 %% \helpref{wxSysColourChangedEvent}{wxsyscolourchangedevent},\rtfsp
2076 %% \helpref{Event handling overview}{eventhandlingoverview}
2079 \membersection{wxWindow::OnInternalIdle
}\label{wxwindowoninternalidle
}
2081 \func{virtual void
}{OnInternalIdle
}{\void}
2083 This virtual function is normally only used internally, but
2084 sometimes an application may need it to implement functionality
2085 that should not be disabled by an application defining an OnIdle
2086 handler in a derived class.
2088 This function may be used to do delayed painting, for example,
2089 and most implementations call
\helpref{wxWindow::UpdateWindowUI
}{wxwindowupdatewindowui
}
2090 in order to send update events to the window in idle time.
2093 \membersection{wxWindow::PageDown
}\label{wxwindowpagedown
}
2095 This is just a wrapper for
\helpref{ScrollPages()
}{wxwindowscrollpages
}$(
1)$.
2098 \membersection{wxWindow::PageUp
}\label{wxwindowpageup
}
2100 This is just a wrapper for
\helpref{ScrollPages()
}{wxwindowscrollpages
}$(-
1)$.
2103 \membersection{wxWindow::PopEventHandler
}\label{wxwindowpopeventhandler
}
2105 \constfunc{wxEvtHandler*
}{PopEventHandler
}{\param{bool
}{deleteHandler =
{\tt false
}}}
2107 Removes and returns the top-most event handler on the event handler stack.
2109 \wxheading{Parameters
}
2111 \docparam{deleteHandler
}{If this is
{\tt true
}, the handler will be deleted after it is removed. The
2112 default value is
{\tt false
}.
}
2114 \wxheading{See also
}
2116 \helpref{wxWindow::SetEventHandler
}{wxwindowseteventhandler
},
\rtfsp
2117 \helpref{wxWindow::GetEventHandler
}{wxwindowgeteventhandler
},
\rtfsp
2118 \helpref{wxWindow::PushEventHandler
}{wxwindowpusheventhandler
},
\rtfsp
2119 \helpref{wxEvtHandler::ProcessEvent
}{wxevthandlerprocessevent
},
\rtfsp
2120 \helpref{wxEvtHandler
}{wxevthandler
}\rtfsp
2123 \membersection{wxWindow::PopupMenu
}\label{wxwindowpopupmenu
}
2125 \func{bool
}{PopupMenu
}{\param{wxMenu*
}{menu
},
\param{const wxPoint\&
}{pos = wxDefaultPosition
}}
2127 \func{bool
}{PopupMenu
}{\param{wxMenu*
}{menu
},
\param{int
}{x
},
\param{int
}{y
}}
2129 Pops up the given menu at the specified coordinates, relative to this
2130 window, and returns control when the user has dismissed the menu. If a
2131 menu item is selected, the corresponding menu event is generated and will be
2132 processed as usually. If the coordinates are not specified, current mouse
2133 cursor position is used.
2135 \wxheading{Parameters
}
2137 \docparam{menu
}{Menu to pop up.
}
2139 \docparam{pos
}{The position where the menu will appear.
}
2141 \docparam{x
}{Required x position for the menu to appear.
}
2143 \docparam{y
}{Required y position for the menu to appear.
}
2145 \wxheading{See also
}
2147 \helpref{wxMenu
}{wxmenu
}
2151 Just before the menu is popped up,
\helpref{wxMenu::UpdateUI
}{wxmenuupdateui
}
2152 is called to ensure that the menu items are in the correct state. The menu does
2153 not get deleted by the window.
2155 It is recommended to not explicitly specify coordinates when calling PopupMenu
2156 in response to mouse click, because some of the ports (namely, wxGTK) can do
2157 a better job of positioning the menu in that case.
2159 \pythonnote{In place of a single overloaded method name, wxPython
2160 implements the following methods:
\par
2161 \indented{2cm
}{\begin{twocollist
}
2162 \twocolitem{{\bf PopupMenu(menu, point)
}}{Specifies position with a wxPoint
}
2163 \twocolitem{{\bf PopupMenuXY(menu, x, y)
}}{Specifies position with two integers (x, y)
}
2168 \membersection{wxWindow::PushEventHandler
}\label{wxwindowpusheventhandler
}
2170 \func{void
}{PushEventHandler
}{\param{wxEvtHandler*
}{handler
}}
2172 Pushes this event handler onto the event stack for the window.
2174 \wxheading{Parameters
}
2176 \docparam{handler
}{Specifies the handler to be pushed.
}
2180 An event handler is an object that is capable of processing the events
2181 sent to a window. By default, the window is its own event handler, but
2182 an application may wish to substitute another, for example to allow
2183 central implementation of event-handling for a variety of different
2186 \helpref{wxWindow::PushEventHandler
}{wxwindowpusheventhandler
} allows
2187 an application to set up a chain of event handlers, where an event not handled by one event handler is
2188 handed to the next one in the chain. Use
\helpref{wxWindow::PopEventHandler
}{wxwindowpopeventhandler
} to
2189 remove the event handler.
2191 \wxheading{See also
}
2193 \helpref{wxWindow::SetEventHandler
}{wxwindowseteventhandler
},
\rtfsp
2194 \helpref{wxWindow::GetEventHandler
}{wxwindowgeteventhandler
},
\rtfsp
2195 \helpref{wxWindow::PopEventHandler
}{wxwindowpusheventhandler
},
\rtfsp
2196 \helpref{wxEvtHandler::ProcessEvent
}{wxevthandlerprocessevent
},
\rtfsp
2197 \helpref{wxEvtHandler
}{wxevthandler
}
2200 \membersection{wxWindow::Raise
}\label{wxwindowraise
}
2202 \func{void
}{Raise
}{\void}
2204 Raises the window to the top of the window hierarchy (z-order).
2206 In current version of wxWidgets this works both for managed and child windows.
2208 \wxheading{See also
}
2210 \helpref{Lower
}{wxwindowlower
}
2213 \membersection{wxWindow::Refresh
}\label{wxwindowrefresh
}
2215 \func{virtual void
}{Refresh
}{\param{bool
}{ eraseBackground =
{\tt true
}},
\param{const wxRect*
}{rect = NULL
}}
2217 Causes this window, and all of its children recursively (except under wxGTK1
2218 where this is not implemented), to be repainted. Note that repainting doesn't
2219 happen immediately but only during the next event loop iteration, if you need
2220 to update the window immediately you should use
\helpref{Update
}{wxwindowupdate
}
2223 \wxheading{Parameters
}
2225 \docparam{eraseBackground
}{If
{\tt true
}, the background will be
2228 \docparam{rect
}{If non-NULL, only the given rectangle will
2229 be treated as damaged.
}
2231 \wxheading{See also
}
2233 \helpref{wxWindow::RefreshRect
}{wxwindowrefreshrect
}
2236 \membersection{wxWindow::RefreshRect
}\label{wxwindowrefreshrect
}
2238 \func{void
}{RefreshRect
}{\param{const wxRect\&
}{rect
},
\param{bool
}{eraseBackground =
\true}}
2240 Redraws the contents of the given rectangle: only the area inside it will be
2243 This is the same as
\helpref{Refresh
}{wxwindowrefresh
} but has a nicer syntax
2244 as it can be called with a temporary wxRect object as argument like this
2245 \texttt{RefreshRect(wxRect(x, y, w, h))
}.
2248 \membersection{wxWindow::RegisterHotKey
}\label{wxwindowregisterhotkey
}
2250 \func{bool
}{RegisterHotKey
}{\param{int
}{ hotkeyId
},
\param{int
}{ modifiers
},
\param{int
}{ virtualKeyCode
}}
2252 Registers a system wide hotkey. Every time the user presses the hotkey registered here, this window
2253 will receive a hotkey event. It will receive the event even if the application is in the background
2254 and does not have the input focus because the user is working with some other application.
2256 \wxheading{Parameters
}
2258 \docparam{hotkeyId
}{Numeric identifier of the hotkey. For applications this must be between
0 and
0xBFFF. If
2259 this function is called from a shared DLL, it must be a system wide unique identifier between
0xC000 and
0xFFFF.
2260 This is a MSW specific detail.
}
2262 \docparam{modifiers
}{A bitwise combination of
{\tt wxMOD
\_SHIFT},
{\tt wxMOD
\_CONTROL},
{\tt wxMOD
\_ALT}
2263 or
{\tt wxMOD
\_WIN} specifying the modifier keys that have to be pressed along with the key.
}
2265 \docparam{virtualKeyCode
}{The virtual key code of the hotkey.
}
2267 \wxheading{Return value
}
2269 {\tt true
} if the hotkey was registered successfully.
{\tt false
} if some other application already registered a
2270 hotkey with this modifier/virtualKeyCode combination.
2274 Use EVT
\_HOTKEY(hotkeyId, fnc) in the event table to capture the event.
2275 This function is currently only implemented under Windows. It is used
2276 in the
\helpref{Windows CE port
}{wxwince
} for detecting hardware button presses.
2278 \wxheading{See also
}
2280 \helpref{wxWindow::UnregisterHotKey
}{wxwindowunregisterhotkey
}
2283 \membersection{wxWindow::ReleaseMouse
}\label{wxwindowreleasemouse
}
2285 \func{virtual void
}{ReleaseMouse
}{\void}
2287 Releases mouse input captured with
\helpref{wxWindow::CaptureMouse
}{wxwindowcapturemouse
}.
2289 \wxheading{See also
}
2291 \helpref{wxWindow::CaptureMouse
}{wxwindowcapturemouse
},
2292 \helpref{wxWindow::HasCapture
}{wxwindowhascapture
},
2293 \helpref{wxWindow::ReleaseMouse
}{wxwindowreleasemouse
},
2294 \helpref{wxMouseCaptureChangedEvent
}{wxmousecapturechangedevent
}
2297 \membersection{wxWindow::RemoveChild
}\label{wxwindowremovechild
}
2299 \func{virtual void
}{RemoveChild
}{\param{wxWindow*
}{child
}}
2301 Removes a child window. This is called automatically by window deletion
2302 functions so should not be required by the application programmer.
2304 Notice that this function is mostly internal to wxWidgets and shouldn't be
2305 called by the user code.
2307 \wxheading{Parameters
}
2309 \docparam{child
}{Child window to remove.
}
2312 \membersection{wxWindow::RemoveEventHandler
}\label{wxwindowremoveeventhandler
}
2314 \func{bool
}{RemoveEventHandler
}{\param{wxEvtHandler *
}{handler
}}
2316 Find the given
{\it handler
} in the windows event handler chain and remove (but
2317 not delete) it from it.
2319 \wxheading{Parameters
}
2321 \docparam{handler
}{The event handler to remove, must be non
{\tt NULL
} and
2322 must be present in this windows event handlers chain
}
2324 \wxheading{Return value
}
2326 Returns
{\tt true
} if it was found and
{\tt false
} otherwise (this also results
2327 in an assert failure so this function should only be called when the
2328 handler is supposed to be there).
2330 \wxheading{See also
}
2332 \helpref{PushEventHandler
}{wxwindowpusheventhandler
},
\rtfsp
2333 \helpref{PopEventHandler
}{wxwindowpopeventhandler
}
2336 \membersection{wxWindow::Reparent
}\label{wxwindowreparent
}
2338 \func{virtual bool
}{Reparent
}{\param{wxWindow*
}{newParent
}}
2340 Reparents the window, i.e the window will be removed from its
2341 current parent window (e.g. a non-standard toolbar in a wxFrame)
2342 and then re-inserted into another. Available on Windows and GTK.
2344 \wxheading{Parameters
}
2346 \docparam{newParent
}{New parent.
}
2349 \membersection{wxWindow::ScreenToClient
}\label{wxwindowscreentoclient
}
2351 \constfunc{virtual void
}{ScreenToClient
}{\param{int*
}{x
},
\param{int*
}{y
}}
2353 \constfunc{virtual wxPoint
}{ScreenToClient
}{\param{const wxPoint\&
}{pt
}}
2355 Converts from screen to client window coordinates.
2357 \wxheading{Parameters
}
2359 \docparam{x
}{Stores the screen x coordinate and receives the client x coordinate.
}
2361 \docparam{y
}{Stores the screen x coordinate and receives the client x coordinate.
}
2363 \docparam{pt
}{The screen position for the second form of the function.
}
2365 \pythonnote{In place of a single overloaded method name, wxPython
2366 implements the following methods:
\par
2367 \indented{2cm
}{\begin{twocollist
}
2368 \twocolitem{{\bf ScreenToClient(point)
}}{Accepts and returns a wxPoint
}
2369 \twocolitem{{\bf ScreenToClientXY(x, y)
}}{Returns a
2-tuple, (x, y)
}
2374 \membersection{wxWindow::ScrollLines
}\label{wxwindowscrolllines
}
2376 \func{virtual bool
}{ScrollLines
}{\param{int
}{lines
}}
2378 Scrolls the window by the given number of lines down (if
{\it lines
} is
2381 \wxheading{Return value
}
2383 Returns
{\tt true
} if the window was scrolled,
{\tt false
} if it was already
2384 on top/bottom and nothing was done.
2388 This function is currently only implemented under MSW and wxTextCtrl under
2389 wxGTK (it also works for wxScrolledWindow derived classes under all
2392 \wxheading{See also
}
2394 \helpref{ScrollPages
}{wxwindowscrollpages
}
2397 \membersection{wxWindow::ScrollPages
}\label{wxwindowscrollpages
}
2399 \func{virtual bool
}{ScrollPages
}{\param{int
}{pages
}}
2401 Scrolls the window by the given number of pages down (if
{\it pages
} is
2404 \wxheading{Return value
}
2406 Returns
{\tt true
} if the window was scrolled,
{\tt false
} if it was already
2407 on top/bottom and nothing was done.
2411 This function is currently only implemented under MSW and wxGTK.
2413 \wxheading{See also
}
2415 \helpref{ScrollLines
}{wxwindowscrolllines
}
2418 \membersection{wxWindow::ScrollWindow
}\label{wxwindowscrollwindow
}
2420 \func{virtual void
}{ScrollWindow
}{\param{int
}{dx
},
\param{int
}{dy
},
\param{const wxRect*
}{ rect = NULL
}}
2422 Physically scrolls the pixels in the window and move child windows accordingly.
2424 \wxheading{Parameters
}
2426 \docparam{dx
}{Amount to scroll horizontally.
}
2428 \docparam{dy
}{Amount to scroll vertically.
}
2430 \docparam{rect
}{Rectangle to scroll, if it is
\NULL, the whole window is
2431 scrolled (this is always the case under wxGTK which doesn't support this
2436 Note that you can often use
\helpref{wxScrolledWindow
}{wxscrolledwindow
}
2437 instead of using this function directly.
2440 \membersection{wxWindow::SetAcceleratorTable
}\label{wxwindowsetacceleratortable
}
2442 \func{virtual void
}{SetAcceleratorTable
}{\param{const wxAcceleratorTable\&
}{ accel
}}
2444 Sets the accelerator table for this window. See
\helpref{wxAcceleratorTable
}{wxacceleratortable
}.
2447 \membersection{wxWindow::SetAccessible
}\label{wxwindowsetaccessible
}
2449 \func{void
}{SetAccessible
}{\param{wxAccessible*
}{ accessible
}}
2451 Sets the accessible for this window. Any existing accessible for this window
2452 will be deleted first, if not identical to
{\it accessible
}.
2454 See also
\helpref{wxAccessible
}{wxaccessible
}.
2457 \membersection{wxWindow::SetAutoLayout
}\label{wxwindowsetautolayout
}
2459 \func{void
}{SetAutoLayout
}{\param{bool
}{ autoLayout
}}
2461 Determines whether the
\helpref{wxWindow::Layout
}{wxwindowlayout
} function will
2462 be called automatically when the window is resized. Please note that this only
2463 happens for the windows usually used to contain children, namely
2464 \helpref{wxPanel
}{wxpanel
} and
\helpref{wxTopLevelWindow
}{wxtoplevelwindow
}
2465 (and the classes deriving from them).
2467 This method is called implicitly by
2468 \helpref{wxWindow::SetSizer
}{wxwindowsetsizer
} but if you use
2469 \helpref{wxWindow::SetConstraints
}{wxwindowsetconstraints
} you should call it
2470 manually or otherwise the window layout won't be correctly updated when its
2473 \wxheading{Parameters
}
2475 \docparam{autoLayout
}{Set this to
\true if you wish the Layout function to be
2476 called automatically when the window is resized.
}
2478 \wxheading{See also
}
2480 \helpref{wxWindow::SetConstraints
}{wxwindowsetconstraints
}
2483 \membersection{wxWindow::SetBackgroundColour
}\label{wxwindowsetbackgroundcolour
}
2485 \func{virtual bool
}{SetBackgroundColour
}{\param{const wxColour\&
}{colour
}}
2487 Sets the background colour of the window.
2489 Please see
\helpref{InheritAttributes
}{wxwindowinheritattributes
} for
2490 explanation of the difference between this method and
2491 \helpref{SetOwnBackgroundColour
}{wxwindowsetownbackgroundcolour
}.
2493 \wxheading{Parameters
}
2495 \docparam{colour
}{The colour to be used as the background colour, pass
2496 {\tt wxNullColour
} to reset to the default colour.
}
2500 The background colour is usually painted by the default
\rtfsp
2501 \helpref{wxEraseEvent
}{wxeraseevent
} event handler function
2502 under Windows and automatically under GTK.
2504 Note that setting the background colour does not cause an immediate refresh, so you
2505 may wish to call
\helpref{wxWindow::ClearBackground
}{wxwindowclearbackground
} or
\helpref{wxWindow::Refresh
}{wxwindowrefresh
} after
2506 calling this function.
2508 Using this function will disable attempts to use themes for this
2509 window, if the system supports them. Use with care since usually the
2510 themes represent the appearance chosen by the user to be used for all
2511 applications on the system.
2514 \wxheading{See also
}
2516 \helpref{wxWindow::GetBackgroundColour
}{wxwindowgetbackgroundcolour
},
\rtfsp
2517 \helpref{wxWindow::SetForegroundColour
}{wxwindowsetforegroundcolour
},
\rtfsp
2518 \helpref{wxWindow::GetForegroundColour
}{wxwindowgetforegroundcolour
},
\rtfsp
2519 \helpref{wxWindow::ClearBackground
}{wxwindowclearbackground
},
\rtfsp
2520 \helpref{wxWindow::Refresh
}{wxwindowrefresh
},
\rtfsp
2521 \helpref{wxEraseEvent
}{wxeraseevent
}
2523 \membersection{wxWindow::SetBackgroundStyle
}\label{wxwindowsetbackgroundstyle
}
2525 \func{virtual void
}{SetBackgroundStyle
}{\param{wxBackgroundStyle
}{ style
}}
2527 Sets the background style of the window. The background style indicates
2528 whether background colour should be determined by the system (wxBG
\_STYLE\_SYSTEM),
2529 be set to a specific colour (wxBG
\_STYLE\_COLOUR), or should be left to the
2530 application to implement (wxBG
\_STYLE\_CUSTOM).
2532 On GTK+, use of wxBG
\_STYLE\_CUSTOM allows the flicker-free drawing of a custom
2533 background, such as a tiled bitmap. Currently the style has no effect on other platforms.
2535 \wxheading{See also
}
2537 \helpref{wxWindow::SetBackgroundColour
}{wxwindowsetbackgroundcolour
},
\rtfsp
2538 \helpref{wxWindow::GetForegroundColour
}{wxwindowgetforegroundcolour
},
\rtfsp
2539 \helpref{wxWindow::GetBackgroundStyle
}{wxwindowgetbackgroundstyle
}
2542 \membersection{wxWindow::SetBestFittingSize
}\label{wxwindowsetbestfittingsize
}
2544 \func{void
}{SetBestFittingSize
}{\param{const wxSize\&
}{size = wxDefaultSize
}}
2546 A
{\it smart
} SetSize that will fill in default size components with the
2547 window's
{\it best
} size values. Also sets the window's minsize to
2548 the value passed in for use with sizers. This means that if a full or
2549 partial size is passed to this function then the sizers will use that
2550 size instead of the results of GetBestSize to determine the minimum
2551 needs of the window for layout.
2553 \wxheading{See also
}
2555 \helpref{wxWindow::SetSize
}{wxwindowsetsize
},
\rtfsp
2556 \helpref{wxWindow::GetBestSize
}{wxwindowgetbestsize
},
\rtfsp
2557 \helpref{wxWindow::GetBestFittingSize
}{wxwindowgetbestfittingsize
},
\rtfsp
2558 \helpref{wxWindow::SetSizeHints
}{wxwindowsetsizehints
}
2561 \membersection{wxWindow::SetCaret
}\label{wxwindowsetcaret
}
2563 \constfunc{void
}{SetCaret
}{\param{wxCaret *
}{caret
}}
2565 Sets the
\helpref{caret
}{wxcaret
} associated with the window.
2568 \membersection{wxWindow::SetClientSize
}\label{wxwindowsetclientsize
}
2570 \func{virtual void
}{SetClientSize
}{\param{int
}{ width
},
\param{int
}{ height
}}
2572 \func{virtual void
}{SetClientSize
}{\param{const wxSize\&
}{ size
}}
2574 This sets the size of the window client area in pixels. Using this function to size a window
2575 tends to be more device-independent than
\helpref{wxWindow::SetSize
}{wxwindowsetsize
}, since the application need not
2576 worry about what dimensions the border or title bar have when trying to fit the window
2577 around panel items, for example.
2579 \wxheading{Parameters
}
2581 \docparam{width
}{The required client area width.
}
2583 \docparam{height
}{The required client area height.
}
2585 \docparam{size
}{The required client size.
}
2587 \pythonnote{In place of a single overloaded method name, wxPython
2588 implements the following methods:
\par
2589 \indented{2cm
}{\begin{twocollist
}
2590 \twocolitem{{\bf SetClientSize(size)
}}{Accepts a wxSize
}
2591 \twocolitem{{\bf SetClientSizeWH(width, height)
}}{}
2596 \membersection{wxWindow::SetConstraints
}\label{wxwindowsetconstraints
}
2598 \func{void
}{SetConstraints
}{\param{wxLayoutConstraints*
}{constraints
}}
2600 Sets the window to have the given layout constraints. The window
2601 will then own the object, and will take care of its deletion.
2602 If an existing layout constraints object is already owned by the
2603 window, it will be deleted.
2605 \wxheading{Parameters
}
2607 \docparam{constraints
}{The constraints to set. Pass NULL to disassociate and delete the window's
2612 You must call
\helpref{wxWindow::SetAutoLayout
}{wxwindowsetautolayout
} to tell a window to use
2613 the constraints automatically in OnSize; otherwise, you must override OnSize and call Layout()
2614 explicitly. When setting both a wxLayoutConstraints and a
\helpref{wxSizer
}{wxsizer
}, only the
2615 sizer will have effect.
2617 \membersection{wxWindow::SetContainingSizer
}\label{wxwindowsetcontainingsizer
}
2619 \func{void
}{SetContainingSizer
}{\param{wxSizer*
}{sizer
}}
2621 This normally does not need to be called by user code. It is called
2622 when a window is added to a sizer, and is used so the window can
2623 remove itself from the sizer when it is destroyed.
2626 \membersection{wxWindow::SetCursor
}\label{wxwindowsetcursor
}
2628 \func{virtual void
}{SetCursor
}{\param{const wxCursor\&
}{cursor
}}
2630 % VZ: the docs are correct, if the code doesn't behave like this, it must be
2632 Sets the window's cursor. Notice that the window cursor also sets it for the
2633 children of the window implicitly.
2635 The
{\it cursor
} may be
{\tt wxNullCursor
} in which case the window cursor will
2636 be reset back to default.
2638 \wxheading{Parameters
}
2640 \docparam{cursor
}{Specifies the cursor that the window should normally display.
}
2642 \wxheading{See also
}
2644 \helpref{::wxSetCursor
}{wxsetcursor
},
\helpref{wxCursor
}{wxcursor
}
2647 \membersection{wxWindow::SetDropTarget
}\label{wxwindowsetdroptarget
}
2649 \func{void
}{SetDropTarget
}{\param{wxDropTarget*
}{ target
}}
2651 Associates a drop target with this window.
2653 If the window already has a drop target, it is deleted.
2655 \wxheading{See also
}
2657 \helpref{wxWindow::GetDropTarget
}{wxwindowgetdroptarget
},
2658 \helpref{Drag and drop overview
}{wxdndoverview
}
2662 \membersection{wxWindow::SetInitialBestSize
}\label{wxwindowsetinitialbestsize
}
2664 \func{virtual void
}{SetInitialBestSize
}{\param{const wxSize\&
}{size
}}
2666 Sets the initial window size if none is given (i.e. at least one of the
2667 components of the size passed to ctor/Create() is wxDefaultCoord).
2669 \membersection{wxWindow::SetEventHandler
}\label{wxwindowseteventhandler
}
2671 \func{void
}{SetEventHandler
}{\param{wxEvtHandler*
}{handler
}}
2673 Sets the event handler for this window.
2675 \wxheading{Parameters
}
2677 \docparam{handler
}{Specifies the handler to be set.
}
2681 An event handler is an object that is capable of processing the events
2682 sent to a window. By default, the window is its own event handler, but
2683 an application may wish to substitute another, for example to allow
2684 central implementation of event-handling for a variety of different
2687 It is usually better to use
\helpref{wxWindow::PushEventHandler
}{wxwindowpusheventhandler
} since
2688 this sets up a chain of event handlers, where an event not handled by one event handler is
2689 handed to the next one in the chain.
2691 \wxheading{See also
}
2693 \helpref{wxWindow::GetEventHandler
}{wxwindowgeteventhandler
},
\rtfsp
2694 \helpref{wxWindow::PushEventHandler
}{wxwindowpusheventhandler
},
\rtfsp
2695 \helpref{wxWindow::PopEventHandler
}{wxwindowpusheventhandler
},
\rtfsp
2696 \helpref{wxEvtHandler::ProcessEvent
}{wxevthandlerprocessevent
},
\rtfsp
2697 \helpref{wxEvtHandler
}{wxevthandler
}
2700 \membersection{wxWindow::SetExtraStyle
}\label{wxwindowsetextrastyle
}
2702 \func{void
}{SetExtraStyle
}{\param{long
}{exStyle
}}
2704 Sets the extra style bits for the window. The currently defined extra style
2708 \begin{twocollist
}\itemsep=
0pt
2709 \twocolitem{\windowstyle{wxWS
\_EX\_VALIDATE\_RECURSIVELY}}{TransferDataTo/FromWindow()
2710 and Validate() methods will recursively descend into all children of the
2711 window if it has this style flag set.
}
2712 \twocolitem{\windowstyle{wxWS
\_EX\_BLOCK\_EVENTS}}{Normally, the command
2713 events are propagated upwards to the window parent recursively until a handler
2714 for them is found. Using this style allows to prevent them from being
2715 propagated beyond this window. Notice that wxDialog has this style on by
2716 default for the reasons explained in the
2717 \helpref{event processing overview
}{eventprocessing
}.
}
2718 \twocolitem{\windowstyle{wxWS
\_EX\_TRANSIENT}}{This can be used to prevent a
2719 window from being used as an implicit parent for the dialogs which were
2720 created without a parent. It is useful for the windows which can disappear at
2721 any moment as creating children of such windows results in fatal problems.
}
2722 \twocolitem{\windowstyle{wxFRAME
\_EX\_CONTEXTHELP}}{Under Windows, puts a query button on the
2723 caption. When pressed, Windows will go into a context-sensitive help mode and wxWidgets will send
2724 a wxEVT
\_HELP event if the user clicked on an application window.
2725 This style cannot be used together with wxMAXIMIZE
\_BOX or wxMINIMIZE
\_BOX, so
2726 you should use the style of
2727 {\tt wxDEFAULT
\_FRAME\_STYLE \&
\textasciitilde(wxMINIMIZE
\_BOX | wxMAXIMIZE
\_BOX)
} for the
2728 frames having this style (the dialogs don't have minimize nor maximize box by
2730 \twocolitem{\windowstyle{wxWS
\_EX\_PROCESS\_IDLE}}{This window should always process idle events, even
2731 if the mode set by
\helpref{wxIdleEvent::SetMode
}{wxidleeventsetmode
} is wxIDLE
\_PROCESS\_SPECIFIED.
}
2732 \twocolitem{\windowstyle{wxWS
\_EX\_PROCESS\_UI\_UPDATES}}{This window should always process UI update events,
2733 even if the mode set by
\helpref{wxUpdateUIEvent::SetMode
}{wxupdateuieventsetmode
} is wxUPDATE
\_UI\_PROCESS\_SPECIFIED.
}
2737 \membersection{wxWindow::SetFocus
}\label{wxwindowsetfocus
}
2739 \func{virtual void
}{SetFocus
}{\void}
2741 This sets the window to receive keyboard input.
2743 \wxheading{See also
}
2745 \helpref{wxFocusEvent
}{wxfocusevent
}
2746 \helpref{wxPanel::SetFocus
}{wxpanelsetfocus
}
2747 \helpref{wxPanel::SetFocusIgnoringChildren
}{wxpanelsetfocusignoringchildren
}
2750 \membersection{wxWindow::SetFocusFromKbd
}\label{wxwindowsetfocusfromkbd
}
2752 \func{virtual void
}{SetFocusFromKbd
}{\void}
2754 This function is called by wxWidgets keyboard navigation code when the user
2755 gives the focus to this window from keyboard (e.g. using
{\tt TAB
} key).
2756 By default this method simply calls
\helpref{SetFocus
}{wxwindowsetfocus
} but
2757 can be overridden to do something in addition to this in the derived classes.
2760 \membersection{wxWindow::SetFont
}\label{wxwindowsetfont
}
2762 \func{void
}{SetFont
}{\param{const wxFont\&
}{font
}}
2764 Sets the font for this window. This function should not be called for the
2765 parent window if you don't want its font to be inherited by its children,
2766 use
\helpref{SetOwnFont
}{wxwindowsetownfont
} instead in this case and
2767 see
\helpref{InheritAttributes
}{wxwindowinheritattributes
} for more
2770 Please notice that the given font is
\emph{not
} automatically used for
2771 \helpref{wxPaintDC
}{wxpaintdc
} objects associated with this window, you need to
2772 call
\helpref{wxDC::SetFont()
}{wxdcsetfont
} too. However this font is used by
2773 any standard controls for drawing their text as well as by
2774 \helpref{wxWindow::GetTextExtent()
}{wxwindowgettextextent
}.
2776 \wxheading{Parameters
}
2778 \docparam{font
}{Font to associate with this window, pass
2779 {\tt wxNullFont
} to reset to the default font.
}
2781 \wxheading{See also
}
2783 \helpref{wxWindow::GetFont
}{wxwindowgetfont
},\\
2784 \helpref{InheritAttributes
}{wxwindowinheritattributes
}
2787 \membersection{wxWindow::SetForegroundColour
}\label{wxwindowsetforegroundcolour
}
2789 \func{virtual void
}{SetForegroundColour
}{\param{const wxColour\&
}{colour
}}
2791 Sets the foreground colour of the window.
2793 Please see
\helpref{InheritAttributes
}{wxwindowinheritattributes
} for
2794 explanation of the difference between this method and
2795 \helpref{SetOwnForegroundColour
}{wxwindowsetownforegroundcolour
}.
2797 \wxheading{Parameters
}
2799 \docparam{colour
}{The colour to be used as the foreground colour, pass
2800 {\tt wxNullColour
} to reset to the default colour.
}
2804 The interpretation of foreground colour is open to interpretation according
2805 to the window class; it may be the text colour or other colour, or it may not
2808 Using this function will disable attempts to use themes for this
2809 window, if the system supports them. Use with care since usually the
2810 themes represent the appearance chosen by the user to be used for all
2811 applications on the system.
2813 \wxheading{See also
}
2815 \helpref{wxWindow::GetForegroundColour
}{wxwindowgetforegroundcolour
},
\rtfsp
2816 \helpref{wxWindow::SetBackgroundColour
}{wxwindowsetbackgroundcolour
},
\rtfsp
2817 \helpref{wxWindow::GetBackgroundColour
}{wxwindowgetbackgroundcolour
},
\rtfsp
2818 \helpref{wxWindow::ShouldInheritColours
}{wxwindowshouldinheritcolours
}
2821 \membersection{wxWindow::SetHelpText
}\label{wxwindowsethelptext
}
2823 \func{virtual void
}{SetHelpText
}{\param{const wxString\&
}{helpText
}}
2825 Sets the help text to be used as context-sensitive help for this window.
2827 Note that the text is actually stored by the current
\helpref{wxHelpProvider
}{wxhelpprovider
} implementation,
2828 and not in the window object itself.
2830 \wxheading{See also
}
2832 \helpref{GetHelpText
}{wxwindowgethelptext
},
\helpref{wxHelpProvider
}{wxhelpprovider
}
2835 \membersection{wxWindow::SetId
}\label{wxwindowsetid
}
2837 \func{void
}{SetId
}{\param{int
}{ id
}}
2839 Sets the identifier of the window.
2843 Each window has an integer identifier. If the application has not provided one,
2844 an identifier will be generated. Normally, the identifier should be provided
2845 on creation and should not be modified subsequently.
2847 \wxheading{See also
}
2849 \helpref{wxWindow::GetId
}{wxwindowgetid
},
\rtfsp
2850 \helpref{Window identifiers
}{windowids
}
2854 \membersection{wxWindow::SetLabel
}\label{wxwindowsetlabel
}
2856 \func{virtual void
}{SetLabel
}{\param{const wxString\&
}{label
}}
2858 Sets the window's label.
2860 \wxheading{Parameters
}
2862 \docparam{label
}{The window label.
}
2864 \wxheading{See also
}
2866 \helpref{wxWindow::GetLabel
}{wxwindowgetlabel
}
2869 \membersection{wxWindow::SetMaxSize
}\label{wxwindowsetmaxsize
}
2871 \func{void
}{SetMaxSize
}{\param{const wxSize\&
}{size
}}
2873 Sets the maximum size of the window, to indicate to the sizer layout mechanism
2874 that this is the maximum possible size.
2876 \membersection{wxWindow::SetMinSize
}\label{wxwindowsetminsize
}
2878 \func{void
}{SetMinSize
}{\param{const wxSize\&
}{size
}}
2880 Sets the minimum size of the window, to indicate to the sizer layout mechanism
2881 that this is the minimum required size. You may need to call this
2882 if you change the window size after construction and before adding
2883 to its parent sizer.
2885 \membersection{wxWindow::SetName
}\label{wxwindowsetname
}
2887 \func{virtual void
}{SetName
}{\param{const wxString\&
}{name
}}
2889 Sets the window's name.
2891 \wxheading{Parameters
}
2893 \docparam{name
}{A name to set for the window.
}
2895 \wxheading{See also
}
2897 \helpref{wxWindow::GetName
}{wxwindowgetname
}
2900 \membersection{wxWindow::SetOwnBackgroundColour
}\label{wxwindowsetownbackgroundcolour
}
2902 \func{void
}{SetOwnBackgroundColour
}{\param{const wxColour\&
}{colour
}}
2904 Sets the background colour of the window but prevents it from being inherited
2905 by the children of this window.
2907 \wxheading{See also
}
2909 \helpref{SetBackgroundColour
}{wxwindowsetbackgroundcolour
},
\rtfsp
2910 \helpref{InheritAttributes
}{wxwindowinheritattributes
}
2913 \membersection{wxWindow::SetOwnFont
}\label{wxwindowsetownfont
}
2915 \func{void
}{SetOwnFont
}{\param{const wxFont\&
}{font
}}
2917 Sets the font of the window but prevents it from being inherited by the
2918 children of this window.
2920 \wxheading{See also
}
2922 \helpref{SetFont
}{wxwindowsetfont
},
\rtfsp
2923 \helpref{InheritAttributes
}{wxwindowinheritattributes
}
2926 \membersection{wxWindow::SetOwnForegroundColour
}\label{wxwindowsetownforegroundcolour
}
2928 \func{void
}{SetOwnForegroundColour
}{\param{const wxColour\&
}{colour
}}
2930 Sets the foreground colour of the window but prevents it from being inherited
2931 by the children of this window.
2933 \wxheading{See also
}
2935 \helpref{SetForegroundColour
}{wxwindowsetforegroundcolour
},
\rtfsp
2936 \helpref{InheritAttributes
}{wxwindowinheritattributes
}
2939 \membersection{wxWindow::SetPalette
}\label{wxwindowsetpalette
}
2941 \func{virtual void
}{SetPalette
}{\param{wxPalette*
}{palette
}}
2943 Obsolete - use
\helpref{wxDC::SetPalette
}{wxdcsetpalette
} instead.
2946 \membersection{wxWindow::SetScrollbar
}\label{wxwindowsetscrollbar
}
2948 \func{virtual void
}{SetScrollbar
}{\param{int
}{orientation
},
\param{int
}{position
},
\rtfsp
2949 \param{int
}{thumbSize
},
\param{int
}{range
},
\rtfsp
2950 \param{bool
}{refresh =
{\tt true
}}}
2952 Sets the scrollbar properties of a built-in scrollbar.
2954 \wxheading{Parameters
}
2956 \docparam{orientation
}{Determines the scrollbar whose page size is to be set. May be wxHORIZONTAL or wxVERTICAL.
}
2958 \docparam{position
}{The position of the scrollbar in scroll units.
}
2960 \docparam{thumbSize
}{The size of the thumb, or visible portion of the scrollbar, in scroll units.
}
2962 \docparam{range
}{The maximum position of the scrollbar.
}
2964 \docparam{refresh
}{{\tt true
} to redraw the scrollbar,
{\tt false
} otherwise.
}
2968 Let's say you wish to display
50 lines of text, using the same font.
2969 The window is sized so that you can only see
16 lines at a time.
2975 SetScrollbar(wxVERTICAL,
0,
16,
50);
2979 Note that with the window at this size, the thumb position can never go
2980 above
50 minus
16, or
34.
2982 You can determine how many lines are currently visible by dividing the current view
2983 size by the character height in pixels.
2985 When defining your own scrollbar behaviour, you will always need to recalculate
2986 the scrollbar settings when the window size changes. You could therefore put your
2987 scrollbar calculations and SetScrollbar
2988 call into a function named AdjustScrollbars, which can be called initially and also
2989 from your
\helpref{wxSizeEvent
}{wxsizeevent
} handler function.
2991 \wxheading{See also
}
2993 \helpref{Scrolling overview
}{scrollingoverview
},
\rtfsp
2994 \helpref{wxScrollBar
}{wxscrollbar
},
\helpref{wxScrolledWindow
}{wxscrolledwindow
},
\rtfsp
2995 \helpref{wxScrollWinEvent
}{wxscrollwinevent
}
3000 \membersection{wxWindow::SetScrollPage
}\label{wxwindowsetscrollpage
}
3002 \func{virtual void
}{SetScrollPage
}{\param{int
}{orientation
},
\param{int
}{pageSize
},
\param{bool
}{refresh =
{\tt true
}}}
3004 Sets the page size of one of the built-in scrollbars.
3006 \wxheading{Parameters
}
3008 \docparam{orientation
}{Determines the scrollbar whose page size is to be set. May be wxHORIZONTAL or wxVERTICAL.
}
3010 \docparam{pageSize
}{Page size in scroll units.
}
3012 \docparam{refresh
}{{\tt true
} to redraw the scrollbar,
{\tt false
} otherwise.
}
3016 The page size of a scrollbar is the number of scroll units that the scroll thumb travels when you
3017 click on the area above/left of or below/right of the thumb. Normally you will want a whole visible
3018 page to be scrolled, i.e. the size of the current view (perhaps the window client size). This
3019 value has to be adjusted when the window is resized, since the page size will have changed.
3021 In addition to specifying how far the scroll thumb travels when paging, in Motif and some versions of Windows
3022 the thumb changes size to reflect the page size relative to the length of the
document. When the
3023 document size is only slightly bigger than the current view (window) size, almost all of the scrollbar
3024 will be taken up by the thumb. When the two values become the same, the scrollbar will (on some systems)
3027 Currently, this function should be called before SetPageRange, because of a quirk in the Windows
3028 handling of pages and ranges.
3030 \wxheading{See also
}
3032 \helpref{wxWindow::SetScrollPos
}{wxwindowsetscrollpos
},
\rtfsp
3033 \helpref{wxWindow::GetScrollPos
}{wxwindowgetscrollpos
},
\rtfsp
3034 \helpref{wxWindow::GetScrollPage
}{wxwindowgetscrollpage
},
\rtfsp
3035 \helpref{wxScrollBar
}{wxscrollbar
},
\helpref{wxScrolledWindow
}{wxscrolledwindow
}
3039 \membersection{wxWindow::SetScrollPos
}\label{wxwindowsetscrollpos
}
3041 \func{virtual void
}{SetScrollPos
}{\param{int
}{orientation
},
\param{int
}{pos
},
\param{bool
}{refresh =
{\tt true
}}}
3043 Sets the position of one of the built-in scrollbars.
3045 \wxheading{Parameters
}
3047 \docparam{orientation
}{Determines the scrollbar whose position is to be set. May be wxHORIZONTAL or wxVERTICAL.
}
3049 \docparam{pos
}{Position in scroll units.
}
3051 \docparam{refresh
}{{\tt true
} to redraw the scrollbar,
{\tt false
} otherwise.
}
3055 This function does not directly affect the contents of the window: it is up to the
3056 application to take note of scrollbar attributes and redraw contents accordingly.
3058 \wxheading{See also
}
3060 \helpref{wxWindow::SetScrollbar
}{wxwindowsetscrollbar
},
\rtfsp
3061 \helpref{wxWindow::GetScrollPos
}{wxwindowgetscrollpos
},
\rtfsp
3062 \helpref{wxWindow::GetScrollThumb
}{wxwindowgetscrollthumb
},
\rtfsp
3063 \helpref{wxScrollBar
}{wxscrollbar
},
\helpref{wxScrolledWindow
}{wxscrolledwindow
}
3068 \membersection{wxWindow::SetScrollRange
}\label{wxwindowsetscrollrange
}
3070 \func{virtual void
}{SetScrollRange
}{\param{int
}{orientation
},
\param{int
}{range
},
\param{bool
}{refresh =
{\tt true
}}}
3072 Sets the range of one of the built-in scrollbars.
3074 \wxheading{Parameters
}
3076 \docparam{orientation
}{Determines the scrollbar whose range is to be set. May be wxHORIZONTAL or wxVERTICAL.
}
3078 \docparam{range
}{Scroll range.
}
3080 \docparam{refresh
}{{\tt true
} to redraw the scrollbar,
{\tt false
} otherwise.
}
3084 The range of a scrollbar is the number of steps that the thumb may travel, rather than the total
3085 object length of the scrollbar. If you are implementing a scrolling window, for example, you
3086 would adjust the scroll range when the window is resized, by subtracting the window view size from the
3087 total virtual window size. When the two sizes are the same (all the window is visible), the range goes to zero
3088 and usually the scrollbar will be automatically hidden.
3090 \wxheading{See also
}
3092 \helpref{wxWindow::SetScrollPos
}{wxwindowsetscrollpos
},
\rtfsp
3093 \helpref{wxWindow::SetScrollPage
}{wxwindowsetscrollpage
},
\rtfsp
3094 \helpref{wxWindow::GetScrollPos
}{wxwindowgetscrollpos
},
\rtfsp
3095 \helpref{wxWindow::GetScrollPage
}{wxwindowgetscrollpage
},
\rtfsp
3096 \helpref{wxScrollBar
}{wxscrollbar
},
\helpref{wxScrolledWindow
}{wxscrolledwindow
}
3100 \membersection{wxWindow::SetSize
}\label{wxwindowsetsize
}
3102 \func{virtual void
}{SetSize
}{\param{int
}{ x
},
\param{int
}{ y
},
\param{int
}{ width
},
\param{int
}{ height
},
3103 \param{int
}{ sizeFlags = wxSIZE
\_AUTO}}
3105 \func{virtual void
}{SetSize
}{\param{const wxRect\&
}{ rect
}}
3107 Sets the size and position of the window in pixels.
3109 \func{virtual void
}{SetSize
}{\param{int
}{ width
},
\param{int
}{ height
}}
3111 \func{virtual void
}{SetSize
}{\param{const wxSize\&
}{ size
}}
3113 Sets the size of the window in pixels.
3115 \wxheading{Parameters
}
3117 \docparam{x
}{Required x position in pixels, or wxDefaultCoord to indicate that the existing
3118 value should be used.
}
3120 \docparam{y
}{Required y position in pixels, or wxDefaultCoord to indicate that the existing
3121 value should be used.
}
3123 \docparam{width
}{Required width in pixels, or wxDefaultCoord to indicate that the existing
3124 value should be used.
}
3126 \docparam{height
}{Required height position in pixels, or wxDefaultCoord to indicate that the existing
3127 value should be used.
}
3129 \docparam{size
}{\helpref{wxSize
}{wxsize
} object for setting the size.
}
3131 \docparam{rect
}{\helpref{wxRect
}{wxrect
} object for setting the position and size.
}
3133 \docparam{sizeFlags
}{Indicates the interpretation of other parameters. It is a bit list of the following:
3135 {\bf wxSIZE
\_AUTO\_WIDTH}: a $wxDefaultCoord$ width value is taken to indicate
3136 a wxWidgets-supplied default width.\\
3137 {\bf wxSIZE
\_AUTO\_HEIGHT}: a $wxDefaultCoord$ height value is taken to indicate
3138 a wxWidgets-supplied default height.\\
3139 {\bf wxSIZE
\_AUTO}: $wxDefaultCoord$ size values are taken to indicate
3140 a wxWidgets-supplied default size.\\
3141 {\bf wxSIZE
\_USE\_EXISTING}: existing dimensions should be used
3142 if $wxDefaultCoord$ values are supplied.\\
3143 {\bf wxSIZE
\_ALLOW\_MINUS\_ONE}: allow negative dimensions (ie. value of $wxDefaultCoord$) to be interpreted
3144 as real dimensions, not default values.
3145 {\bf wxSIZE
\_FORCE}: normally, if the position and the size of the window are
3146 already the same as the parameters of this function, nothing is done. but with
3147 this flag a window resize may be forced even in this case (supported in wx
3148 2.6.2 and later and only implemented for MSW and ignored elsewhere currently)
3153 The second form is a convenience for calling the first form with default
3154 x and y parameters, and must be used with non-default width and height values.
3156 The first form sets the position and optionally size, of the window.
3157 Parameters may be $wxDefaultCoord$ to indicate either that a default should be supplied
3158 by wxWidgets, or that the current value of the dimension should be used.
3160 \wxheading{See also
}
3162 \helpref{wxWindow::Move
}{wxwindowmove
}
3164 \pythonnote{In place of a single overloaded method name, wxPython
3165 implements the following methods:
\par
3166 \indented{2cm
}{\begin{twocollist
}
3167 \twocolitem{{\bf SetDimensions(x, y, width, height, sizeFlags=wxSIZE
\_AUTO)
}}{}
3168 \twocolitem{{\bf SetSize(size)
}}{}
3169 \twocolitem{{\bf SetPosition(point)
}}{}
3174 \membersection{wxWindow::SetSizeHints
}\label{wxwindowsetsizehints
}
3176 \func{virtual void
}{SetSizeHints
}{\param{int
}{ minW
},
\param{int
}{ minH
},
\param{int
}{ maxW=-
1},
\param{int
}{ maxH=-
1},
3177 \param{int
}{ incW=-
1},
\param{int
}{ incH=-
1}}
3179 \func{void
}{SetSizeHints
}{\param{const wxSize\&
}{ minSize
},
3180 \param{const wxSize\&
}{ maxSize=wxDefaultSize
},
\param{const wxSize\&
}{ incSize=wxDefaultSize
}}
3183 Allows specification of minimum and maximum window sizes, and window size increments.
3184 If a pair of values is not set (or set to -
1), the default values will be used.
3186 \wxheading{Parameters
}
3188 \docparam{minW
}{Specifies the minimum width allowable.
}
3190 \docparam{minH
}{Specifies the minimum height allowable.
}
3192 \docparam{maxW
}{Specifies the maximum width allowable.
}
3194 \docparam{maxH
}{Specifies the maximum height allowable.
}
3196 \docparam{incW
}{Specifies the increment for sizing the width (Motif/Xt only).
}
3198 \docparam{incH
}{Specifies the increment for sizing the height (Motif/Xt only).
}
3200 \docparam{minSize
}{Minimum size.
}
3202 \docparam{maxSize
}{Maximum size.
}
3204 \docparam{incSize
}{Increment size (Motif/Xt only).
}
3208 If this function is called, the user will not be able to size the window outside the
3211 The resizing increments are only significant under Motif or Xt.
3214 \membersection{wxWindow::SetSizer
}\label{wxwindowsetsizer
}
3216 \func{void
}{SetSizer
}{\param{wxSizer*
}{sizer
},
\param{bool
}{deleteOld=true
}}
3218 Sets the window to have the given layout sizer. The window
3219 will then own the object, and will take care of its deletion.
3220 If an existing layout constraints object is already owned by the
3221 window, it will be deleted if the deleteOld parameter is true.
3223 Note that this function will also call
3224 \helpref{SetAutoLayout
}{wxwindowsetautolayout
} implicitly with
{\tt true
}
3225 parameter if the
{\it sizer
}\/ is non-NULL and
{\tt false
} otherwise.
3227 \wxheading{Parameters
}
3229 \docparam{sizer
}{The sizer to set. Pass NULL to disassociate and conditionally delete
3230 the window's sizer. See below.
}
3232 \docparam{deleteOld
}{If true (the default), this will delete any prexisting sizer.
3233 Pass false if you wish to handle deleting the old sizer yourself.
}
3237 SetSizer now enables and disables Layout automatically, but prior to wxWidgets
2.3.3
3238 the following applied:
3240 You must call
\helpref{wxWindow::SetAutoLayout
}{wxwindowsetautolayout
} to tell a window to use
3241 the sizer automatically in OnSize; otherwise, you must override OnSize and call Layout()
3242 explicitly. When setting both a wxSizer and a
\helpref{wxLayoutConstraints
}{wxlayoutconstraints
},
3243 only the sizer will have effect.
3246 \membersection{wxWindow::SetSizerAndFit
}\label{wxwindowsetsizerandfit
}
3248 \func{void
}{SetSizerAndFit
}{\param{wxSizer*
}{sizer
},
\param{bool
}{deleteOld=true
}}
3250 The same as
\helpref{SetSizer
}{wxwindowsetsizer
}, except it also sets the size hints
3251 for the window based on the sizer's minimum size.
3254 \membersection{wxWindow::SetThemeEnabled
}\label{wxwindowsetthemeenabled
}
3256 \func{virtual void
}{SetThemeEnabled
}{\param{bool
}{enable
}}
3258 This function tells a window if it should use the system's "theme" code
3259 to draw the windows' background instead if its own background drawing
3260 code. This does not always have any effect since the underlying platform
3261 obviously needs to support the notion of themes in user defined windows.
3262 One such platform is GTK+ where windows can have (very colourful) backgrounds
3263 defined by a user's selected theme.
3265 Dialogs, notebook pages and the status bar have this flag set to true
3266 by default so that the default look and feel is simulated best.
3269 \membersection{wxWindow::SetToolTip
}\label{wxwindowsettooltip
}
3271 \func{void
}{SetToolTip
}{\param{const wxString\&
}{tip
}}
3273 \func{void
}{SetToolTip
}{\param{wxToolTip*
}{tip
}}
3275 Attach a tooltip to the window.
3277 See also:
\helpref{GetToolTip
}{wxwindowgettooltip
},
3278 \helpref{wxToolTip
}{wxtooltip
}
3281 \membersection{wxWindow::SetValidator
}\label{wxwindowsetvalidator
}
3283 \func{virtual void
}{SetValidator
}{\param{const wxValidator\&
}{ validator
}}
3285 Deletes the current validator (if any) and sets the window validator, having called wxValidator::Clone to
3286 create a new validator of this type.
3289 \membersection{wxWindow::SetVirtualSize
}\label{wxwindowsetvirtualsize
}
3291 \func{void
}{SetVirtualSize
}{\param{int
}{ width
},
\param{int
}{ height
}}
3293 \func{void
}{SetVirtualSize
}{\param{const wxSize\&
}{ size
}}
3295 Sets the virtual size of the window in pixels.
3298 \membersection{wxWindow::SetVirtualSizeHints
}\label{wxwindowsetvirtualsizehints
}
3300 \func{virtual void
}{SetVirtualSizeHints
}{\param{int
}{ minW
},
\param{int
}{ minH
},
\param{int
}{ maxW=-
1},
\param{int
}{ maxH=-
1}}
3302 \func{void
}{SetVirtualSizeHints
}{\param{const wxSize\&
}{ minSize=wxDefaultSize
},
3303 \param{const wxSize\&
}{ maxSize=wxDefaultSize
}}
3306 Allows specification of minimum and maximum virtual window sizes.
3307 If a pair of values is not set (or set to -
1), the default values
3310 \wxheading{Parameters
}
3312 \docparam{minW
}{Specifies the minimum width allowable.
}
3314 \docparam{minH
}{Specifies the minimum height allowable.
}
3316 \docparam{maxW
}{Specifies the maximum width allowable.
}
3318 \docparam{maxH
}{Specifies the maximum height allowable.
}
3320 \docparam{minSize
}{Minimum size.
}
3322 \docparam{maxSize
}{Maximum size.
}
3326 If this function is called, the user will not be able to size the virtual area
3327 of the window outside the given bounds.
3330 \membersection{wxWindow::SetWindowStyle
}\label{wxwindowsetwindowstyle
}
3332 \func{void
}{SetWindowStyle
}{\param{long
}{ style
}}
3334 Identical to
\helpref{SetWindowStyleFlag
}{wxwindowsetwindowstyleflag
}.
3337 \membersection{wxWindow::SetWindowStyleFlag
}\label{wxwindowsetwindowstyleflag
}
3339 \func{virtual void
}{SetWindowStyleFlag
}{\param{long
}{ style
}}
3341 Sets the style of the window. Please note that some styles cannot be changed
3342 after the window creation and that
\helpref{Refresh()
}{wxwindowrefresh
} might
3343 be called after changing the others for the change to take place immediately.
3345 See
\helpref{Window styles
}{windowstyles
} for more information about flags.
3347 \wxheading{See also
}
3349 \helpref{GetWindowStyleFlag
}{wxwindowgetwindowstyleflag
}
3352 \membersection{wxWindow::SetWindowVariant
}\label{wxwindowsetwindowvariant
}
3354 \func{void
}{SetWindowVariant
}{\param{wxWindowVariant
}{variant
}}
3356 This function can be called under all platforms but only does anything under
3357 Mac OS X
10.3+ currently. Under this system, each of the standard control can
3358 exist in several sizes which correspond to the elements of wxWindowVariant
3361 enum wxWindowVariant
3363 wxWINDOW_VARIANT_NORMAL, // Normal size
3364 wxWINDOW_VARIANT_SMALL, // Smaller size (about
25 % smaller than normal )
3365 wxWINDOW_VARIANT_MINI, // Mini size (about
33 % smaller than normal )
3366 wxWINDOW_VARIANT_LARGE, // Large size (about
25 % larger than normal )
3370 By default the controls use the normal size, of course, but this function can
3371 be used to change this.
3374 \membersection{wxWindow::ShouldInheritColours
}\label{wxwindowshouldinheritcolours
}
3376 \func{virtual bool
}{ShouldInheritColours
}{\void}
3378 Return
\true from here to allow the colours of this window to be changed by
3379 \helpref{InheritAttributes
}{wxwindowinheritattributes
}, returning
\false
3380 forbids inheriting them from the parent window.
3382 The base class version returns
\false, but this method is overridden in
3383 \helpref{wxControl
}{wxcontrol
} where it returns
\true.
3386 \membersection{wxWindow::Show
}\label{wxwindowshow
}
3388 \func{virtual bool
}{Show
}{\param{bool
}{ show =
{\tt true
}}}
3390 Shows or hides the window. You may need to call
\helpref{Raise
}{wxwindowraise
}
3391 for a top level window if you want to bring it to top, although this is not
3392 needed if Show() is called immediately after the frame creation.
3394 \wxheading{Parameters
}
3396 \docparam{show
}{If
{\tt true
} displays the window. Otherwise, hides it.
}
3398 \wxheading{Return value
}
3400 {\tt true
} if the window has been shown or hidden or
{\tt false
} if nothing was
3401 done because it already was in the requested state.
3403 \wxheading{See also
}
3405 \helpref{wxWindow::IsShown
}{wxwindowisshown
},
\rtfsp
3406 \helpref{wxWindow::Hide
}{wxwindowhide
},
\rtfsp
3407 \helpref{wxRadioBox::Show
}{wxradioboxshow
}
3410 \membersection{wxWindow::Thaw
}\label{wxwindowthaw
}
3412 \func{virtual void
}{Thaw
}{\void}
3414 Reenables window updating after a previous call to
3415 \helpref{Freeze
}{wxwindowfreeze
}. To really thaw the control, it must be called
3416 exactly the same number of times as
\helpref{Freeze
}{wxwindowfreeze
}.
3418 \wxheading{See also
}
3420 \helpref{wxWindowUpdateLocker
}{wxwindowupdatelocker
}
3423 \membersection{wxWindow::TransferDataFromWindow
}\label{wxwindowtransferdatafromwindow
}
3425 \func{virtual bool
}{TransferDataFromWindow
}{\void}
3427 Transfers values from child controls to data areas specified by their validators. Returns
3428 {\tt false
} if a transfer failed.
3430 If the window has
{\tt wxWS
\_EX\_VALIDATE\_RECURSIVELY} extra style flag set,
3431 the method will also call TransferDataFromWindow() of all child windows.
3433 \wxheading{See also
}
3435 \helpref{wxWindow::TransferDataToWindow
}{wxwindowtransferdatatowindow
},
\rtfsp
3436 \helpref{wxValidator
}{wxvalidator
},
\helpref{wxWindow::Validate
}{wxwindowvalidate
}
3439 \membersection{wxWindow::TransferDataToWindow
}\label{wxwindowtransferdatatowindow
}
3441 \func{virtual bool
}{TransferDataToWindow
}{\void}
3443 Transfers values to child controls from data areas specified by their validators.
3445 If the window has
{\tt wxWS
\_EX\_VALIDATE\_RECURSIVELY} extra style flag set,
3446 the method will also call TransferDataToWindow() of all child windows.
3448 \wxheading{Return value
}
3450 Returns
{\tt false
} if a transfer failed.
3452 \wxheading{See also
}
3454 \helpref{wxWindow::TransferDataFromWindow
}{wxwindowtransferdatafromwindow
},
\rtfsp
3455 \helpref{wxValidator
}{wxvalidator
},
\helpref{wxWindow::Validate
}{wxwindowvalidate
}
3458 \membersection{wxWindow::UnregisterHotKey
}\label{wxwindowunregisterhotkey
}
3460 \func{bool
}{UnregisterHotKey
}{\param{int
}{ hotkeyId
}}
3462 Unregisters a system wide hotkey.
3464 \wxheading{Parameters
}
3466 \docparam{hotkeyId
}{Numeric identifier of the hotkey. Must be the same id that was passed to RegisterHotKey.
}
3468 \wxheading{Return value
}
3470 {\tt true
} if the hotkey was unregistered successfully,
{\tt false
} if the id was invalid.
3474 This function is currently only implemented under MSW.
3476 \wxheading{See also
}
3478 \helpref{wxWindow::RegisterHotKey
}{wxwindowregisterhotkey
}
3481 \membersection{wxWindow::Update
}\label{wxwindowupdate
}
3483 \func{virtual void
}{Update
}{\void}
3485 Calling this method immediately repaints the invalidated area of the window and
3486 all of its children recursively while this would usually only happen when the
3487 flow of control returns to the event loop. Notice that this function doesn't
3488 refresh the window and does nothing if the window hadn't been already
3489 repainted. Use
\helpref{Refresh
}{wxwindowrefresh
} first if you want to
3490 immediately redraw the window unconditionally.
3493 \membersection{wxWindow::UpdateWindowUI
}\label{wxwindowupdatewindowui
}
3495 \func{virtual void
}{UpdateWindowUI
}{\param{long
}{ flags = wxUPDATE
\_UI\_NONE}}
3497 This function sends
\helpref{wxUpdateUIEvents
}{wxupdateuievent
} to
3498 the window. The particular implementation depends on the window; for
3499 example a wxToolBar will send an update UI event for each toolbar button,
3500 and a wxFrame will send an update UI event for each menubar menu item.
3501 You can call this function from your application to ensure that your
3502 UI is up-to-date at this point (as far as your wxUpdateUIEvent handlers
3503 are concerned). This may be necessary if you have called
3504 \helpref{wxUpdateUIEvent::SetMode
}{wxupdateuieventsetmode
} or
3505 \helpref{wxUpdateUIEvent::SetUpdateInterval
}{wxupdateuieventsetupdateinterval
} to
3506 limit the overhead that wxWidgets incurs by sending update UI events in idle time.
3508 {\it flags
} should be a bitlist of one or more of the following values.
3513 wxUPDATE_UI_NONE =
0x0000, // No particular value
3514 wxUPDATE_UI_RECURSE =
0x0001, // Call the function for descendants
3515 wxUPDATE_UI_FROMIDLE =
0x0002 // Invoked from On(Internal)Idle
3519 If you are calling this function from an OnInternalIdle or OnIdle
3520 function, make sure you pass the wxUPDATE
\_UI\_FROMIDLE flag, since
3521 this tells the window to only update the UI elements that need
3522 to be updated in idle time. Some windows update their elements
3523 only when necessary, for example when a menu is about to be shown.
3524 The following is an example of how to call UpdateWindowUI from
3528 void MyWindow::OnInternalIdle()
3530 if (wxUpdateUIEvent::CanUpdate(this))
3531 UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
3535 \wxheading{See also
}
3537 \helpref{wxUpdateUIEvent
}{wxupdateuievent
},
3538 \helpref{wxWindow::DoUpdateWindowUI
}{wxwindowdoupdatewindowui
},
3539 \helpref{wxWindow::OnInternalIdle
}{wxwindowoninternalidle
}
3542 \membersection{wxWindow::Validate
}\label{wxwindowvalidate
}
3544 \func{virtual bool
}{Validate
}{\void}
3546 Validates the current values of the child controls using their validators.
3548 If the window has
{\tt wxWS
\_EX\_VALIDATE\_RECURSIVELY} extra style flag set,
3549 the method will also call Validate() of all child windows.
3551 \wxheading{Return value
}
3553 Returns
{\tt false
} if any of the validations failed.
3555 \wxheading{See also
}
3557 \helpref{wxWindow::TransferDataFromWindow
}{wxwindowtransferdatafromwindow
},
\rtfsp
3558 \helpref{wxWindow::TransferDataToWindow
}{wxwindowtransferdatatowindow
},
\rtfsp
3559 \helpref{wxValidator
}{wxvalidator
}
3562 \membersection{wxWindow::WarpPointer
}\label{wxwindowwarppointer
}
3564 \func{void
}{WarpPointer
}{\param{int
}{ x
},
\param{int
}{ y
}}
3566 Moves the pointer to the given position on the window.
3568 {\bf NB:
} This function is not supported under Mac because Apple Human
3569 Interface Guidelines forbid moving the mouse cursor programmatically.
3571 \wxheading{Parameters
}
3573 \docparam{x
}{The new x position for the cursor.
}
3575 \docparam{y
}{The new y position for the cursor.
}