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}}{Disables repainting
70 the window completely when its size is changed - you will have to repaint the
71 new window area manually if you use this style. Currently only has an effect for
73 \twocolitem{\windowstyle{wxVSCROLL
}}{Use this style to enable a vertical scrollbar.
}
74 \twocolitem{\windowstyle{wxHSCROLL
}}{Use this style to enable a horizontal scrollbar.
}
75 \twocolitem{\windowstyle{wxALWAYS
\_SHOW\_SB}}{If a window has scrollbars,
76 disable them instead of hiding them when they are not needed (i.e. when the
77 size of the window is big enough to not require the scrollbars to navigate it).
78 This style is currently only implemented for wxMSW and wxUniversal and does
79 nothing on the other platforms.
}
80 \twocolitem{\windowstyle{wxCLIP
\_CHILDREN}}{Use this style to eliminate flicker caused by the background being
81 repainted, then children being painted over them. Windows only.
}
82 \twocolitem{\windowstyle{wxFULL
\_REPAINT\_ON\_RESIZE}}{Use this style to force
83 a complete redraw of the window whenever it is resized instead of redrawing
84 just the part of the window affected by resizing. Note that this was the
85 behaviour by default before
2.5.1 release and that if you experience redraw
86 problems with the code which previously used to work you may want to try this.
}
89 See also
\helpref{window styles overview
}{windowstyles
}.
91 \wxheading{Extra window styles
}
93 The following are extra styles, set using
\helpref{wxWindow::SetExtraStyle
}{wxwindowsetextrastyle
}.
96 \begin{twocollist
}\itemsep=
0pt
97 \twocolitem{\windowstyle{wxWS
\_EX\_VALIDATE\_RECURSIVELY}}{By default, Validate/TransferDataTo/FromWindow()
98 only work on direct children of the window (compatible behaviour). Set this flag to make them recursively
99 descend into all subwindows.
}
100 \twocolitem{\windowstyle{wxWS
\_EX\_BLOCK\_EVENTS}}{wxCommandEvents and the objects of the derived classes are forwarded to the
101 parent window and so on recursively by default. Using this flag for the
102 given window allows to block this propagation at this window, i.e. prevent
103 the events from being propagated further upwards. Dialogs have this
105 \twocolitem{\windowstyle{wxWS
\_EX\_TRANSIENT}}{Don't use this window as an implicit parent for the other windows: this must
106 be used with transient windows as otherwise there is the risk of creating a
107 dialog/frame with this window as a parent which would lead to a crash if the
108 parent is destroyed before the child.
}
109 \twocolitem{\windowstyle{wxWS
\_EX\_PROCESS\_IDLE}}{This window should always process idle events, even
110 if the mode set by
\helpref{wxIdleEvent::SetMode
}{wxidleeventsetmode
} is wxIDLE
\_PROCESS\_SPECIFIED.
}
111 \twocolitem{\windowstyle{wxWS
\_EX\_PROCESS\_UI\_UPDATES}}{This window should always process UI update events,
112 even if the mode set by
\helpref{wxUpdateUIEvent::SetMode
}{wxupdateuieventsetmode
} is wxUPDATE
\_UI\_PROCESS\_SPECIFIED.
}
117 \helpref{Event handling overview
}{eventhandlingoverview
}
119 \latexignore{\rtfignore{\wxheading{Members
}}}
122 \membersection{wxWindow::wxWindow
}\label{wxwindowctor
}
124 \func{}{wxWindow
}{\void}
128 \func{}{wxWindow
}{\param{wxWindow*
}{ parent
},
\param{wxWindowID
}{id
},
129 \param{const wxPoint\&
}{pos = wxDefaultPosition
},
130 \param{const wxSize\&
}{size = wxDefaultSize
},
131 \param{long
}{style =
0},
132 \param{const wxString\&
}{name = wxPanelNameStr
}}
134 Constructs a window, which can be a child of a frame, dialog or any other non-control window.
136 \wxheading{Parameters
}
138 \docparam{parent
}{Pointer to a parent window.
}
140 \docparam{id
}{Window identifier. If -
1, will automatically create an identifier.
}
142 \docparam{pos
}{Window position. wxDefaultPosition is (-
1, -
1) which indicates that wxWidgets
143 should generate a default position for the window. If using the wxWindow class directly, supply
146 \docparam{size
}{Window size. wxDefaultSize is (-
1, -
1) which indicates that wxWidgets
147 should generate a default size for the window. If no suitable size can be found, the
148 window will be sized to
20x20 pixels so that the window is visible but obviously not
151 \docparam{style
}{Window style. For generic window styles, please see
\helpref{wxWindow
}{wxwindow
}.
}
153 \docparam{name
}{Window name.
}
156 \membersection{wxWindow::
\destruct{wxWindow
}}\label{wxwindowdtor
}
158 \func{}{\destruct{wxWindow
}}{\void}
160 Destructor. Deletes all subwindows, then deletes itself. Instead of using
161 the
{\bf delete
} operator explicitly, you should normally
162 use
\helpref{wxWindow::Destroy
}{wxwindowdestroy
} so that wxWidgets
163 can delete a window only when it is safe to do so, in idle time.
167 \helpref{Window deletion overview
}{windowdeletionoverview
},
\rtfsp
168 \helpref{wxWindow::Destroy
}{wxwindowdestroy
},
\rtfsp
169 \helpref{wxCloseEvent
}{wxcloseevent
}
172 \membersection{wxWindow::AddChild
}\label{wxwindowaddchild
}
174 \func{virtual void
}{AddChild
}{\param{wxWindow*
}{child
}}
176 Adds a child window. This is called automatically by window creation
177 functions so should not be required by the application programmer.
179 Notice that this function is mostly internal to wxWidgets and shouldn't be
180 called by the user code.
182 \wxheading{Parameters
}
184 \docparam{child
}{Child window to add.
}
187 \membersection{wxWindow::CacheBestSize
}\label{wxwindowcachebestsize
}
189 \constfunc{void
}{CacheBestSize
}{\param{const wxSize\&
}{size
}}
191 Sets the cached best size value.
194 \membersection{wxWindow::CaptureMouse
}\label{wxwindowcapturemouse
}
196 \func{virtual void
}{CaptureMouse
}{\void}
198 Directs all mouse input to this window. Call
\helpref{wxWindow::ReleaseMouse
}{wxwindowreleasemouse
} to
201 Note that wxWidgets maintains the stack of windows having captured the mouse
202 and when the mouse is released the capture returns to the window which had had
203 captured it previously and it is only really released if there were no previous
204 window. In particular, this means that you must release the mouse as many times
209 \helpref{wxWindow::ReleaseMouse
}{wxwindowreleasemouse
}
212 \membersection{wxWindow::Center
}\label{wxwindowcenter
}
214 \func{void
}{Center
}{\param{int
}{ direction
}}
216 A synonym for
\helpref{Centre
}{wxwindowcentre
}.
219 \membersection{wxWindow::CenterOnParent
}\label{wxwindowcenteronparent
}
221 \func{void
}{CenterOnParent
}{\param{int
}{ direction
}}
223 A synonym for
\helpref{CentreOnParent
}{wxwindowcentreonparent
}.
226 \membersection{wxWindow::CenterOnScreen
}\label{wxwindowcenteronscreen
}
228 \func{void
}{CenterOnScreen
}{\param{int
}{ direction
}}
230 A synonym for
\helpref{CentreOnScreen
}{wxwindowcentreonscreen
}.
233 \membersection{wxWindow::Centre
}\label{wxwindowcentre
}
235 \func{void
}{Centre
}{\param{int
}{ direction = wxBOTH
}}
239 \wxheading{Parameters
}
241 \docparam{direction
}{Specifies the direction for the centering. May be
{\tt wxHORIZONTAL
},
{\tt wxVERTICAL
}\rtfsp
242 or
{\tt wxBOTH
}. It may also include
{\tt wxCENTRE
\_ON\_SCREEN} flag
243 if you want to center the window on the entire screen and not on its
246 The flag
{\tt wxCENTRE
\_FRAME} is obsolete and should not be used any longer
251 If the window is a top level one (i.e. doesn't have a parent), it will be
252 centered relative to the screen anyhow.
256 \helpref{wxWindow::Center
}{wxwindowcenter
}
259 \membersection{wxWindow::CentreOnParent
}\label{wxwindowcentreonparent
}
261 \func{void
}{CentreOnParent
}{\param{int
}{ direction = wxBOTH
}}
263 Centres the window on its parent. This is a more readable synonym for
264 \helpref{Centre
}{wxwindowcentre
}.
266 \wxheading{Parameters
}
268 \docparam{direction
}{Specifies the direction for the centering. May be
{\tt wxHORIZONTAL
},
{\tt wxVERTICAL
}\rtfsp
273 This methods provides for a way to center top level windows over their
274 parents instead of the entire screen. If there is no parent or if the
275 window is not a top level window, then behaviour is the same as
276 \helpref{wxWindow::Centre
}{wxwindowcentre
}.
280 \helpref{wxWindow::CentreOnScreen
}{wxwindowcenteronscreen
}
283 \membersection{wxWindow::CentreOnScreen
}\label{wxwindowcentreonscreen
}
285 \func{void
}{CentreOnScreen
}{\param{int
}{ direction = wxBOTH
}}
287 Centres the window on screen. This only works for top level windows -
288 otherwise, the window will still be centered on its parent.
290 \wxheading{Parameters
}
292 \docparam{direction
}{Specifies the direction for the centering. May be
{\tt wxHORIZONTAL
},
{\tt wxVERTICAL
}\rtfsp
297 \helpref{wxWindow::CentreOnParent
}{wxwindowcenteronparent
}
300 \membersection{wxWindow::ClearBackground
}\label{wxwindowclearbackground
}
302 \func{void
}{ClearBackground
}{\void}
304 Clears the window by filling it with the current background colour. Does not
305 cause an erase background event to be generated.
308 \membersection{wxWindow::ClientToScreen
}\label{wxwindowclienttoscreen
}
310 \constfunc{virtual void
}{ClientToScreen
}{\param{int*
}{x
},
\param{int*
}{y
}}
312 \perlnote{In wxPerl this method returns a
2-element list instead of
313 modifying its parameters.
}
315 \constfunc{virtual wxPoint
}{ClientToScreen
}{\param{const wxPoint\&
}{ pt
}}
317 Converts to screen coordinates from coordinates relative to this window.
319 \docparam{x
}{A pointer to a integer value for the x coordinate. Pass the client coordinate in, and
320 a screen coordinate will be passed out.
}
322 \docparam{y
}{A pointer to a integer value for the y coordinate. Pass the client coordinate in, and
323 a screen coordinate will be passed out.
}
325 \docparam{pt
}{The client position for the second form of the function.
}
327 \pythonnote{In place of a single overloaded method name, wxPython
328 implements the following methods:
\par
329 \indented{2cm
}{\begin{twocollist
}
330 \twocolitem{{\bf ClientToScreen(point)
}}{Accepts and returns a wxPoint
}
331 \twocolitem{{\bf ClientToScreenXY(x, y)
}}{Returns a
2-tuple, (x, y)
}
336 \membersection{wxWindow::Close
}\label{wxwindowclose
}
338 \func{bool
}{Close
}{\param{bool
}{ force =
{\tt false
}}}
340 This function simply generates a
\helpref{wxCloseEvent
}{wxcloseevent
} whose
341 handler usually tries to close the window. It doesn't close the window itself,
344 \wxheading{Parameters
}
346 \docparam{force
}{{\tt false
} if the window's close handler should be able to veto the destruction
347 of this window,
{\tt true
} if it cannot.
}
351 Close calls the
\helpref{close handler
}{wxcloseevent
} for the window, providing
352 an opportunity for the window to choose whether to destroy the window.
353 Usually it is only used with the top level windows (wxFrame and wxDialog
354 classes) as the others are not supposed to have any special OnClose() logic.
356 The close handler should check whether the window is being deleted forcibly,
357 using
\helpref{wxCloseEvent::GetForce
}{wxcloseeventgetforce
}, in which case it
358 should destroy the window using
\helpref{wxWindow::Destroy
}{wxwindowdestroy
}.
360 {\it Note
} that calling Close does not guarantee that the window will be
361 destroyed; but it provides a way to simulate a manual close of a window, which
362 may or may not be implemented by destroying the window. The default
363 implementation of wxDialog::OnCloseWindow does not necessarily delete the
364 dialog, since it will simply simulate an wxID
\_CANCEL event which is handled by
365 the appropriate button event handler and may do anything at all.
367 To guarantee that the window will be destroyed, call
368 \helpref{wxWindow::Destroy
}{wxwindowdestroy
} instead
372 \helpref{Window deletion overview
}{windowdeletionoverview
},
\rtfsp
373 \helpref{wxWindow::Destroy
}{wxwindowdestroy
},
\rtfsp
374 \helpref{wxCloseEvent
}{wxcloseevent
}
377 \membersection{wxWindow::ConvertDialogToPixels
}\label{wxwindowconvertdialogtopixels
}
379 \func{wxPoint
}{ConvertDialogToPixels
}{\param{const wxPoint\&
}{ pt
}}
381 \func{wxSize
}{ConvertDialogToPixels
}{\param{const wxSize\&
}{ sz
}}
383 Converts a point or size from dialog units to pixels.
385 For the x dimension, the dialog units are multiplied by the average character width
386 and then divided by
4.
388 For the y dimension, the dialog units are multiplied by the average character height
389 and then divided by
8.
393 Dialog units are used for maintaining a dialog's proportions even if the font changes.
395 You can also use these functions programmatically. A convenience macro is defined:
399 #define wxDLG_UNIT(parent, pt) parent->ConvertDialogToPixels(pt)
405 \helpref{wxWindow::ConvertPixelsToDialog
}{wxwindowconvertpixelstodialog
}
407 \pythonnote{In place of a single overloaded method name, wxPython
408 implements the following methods:
\par
409 \indented{2cm
}{\begin{twocollist
}
410 \twocolitem{{\bf ConvertDialogPointToPixels(point)
}}{Accepts and returns a wxPoint
}
411 \twocolitem{{\bf ConvertDialogSizeToPixels(size)
}}{Accepts and returns a wxSize
}
414 Additionally, the following helper functions are defined:
\par
415 \indented{2cm
}{\begin{twocollist
}
416 \twocolitem{{\bf wxDLG
\_PNT(win, point)
}}{Converts a wxPoint from dialog
418 \twocolitem{{\bf wxDLG
\_SZE(win, size)
}}{Converts a wxSize from dialog
425 \membersection{wxWindow::ConvertPixelsToDialog
}\label{wxwindowconvertpixelstodialog
}
427 \func{wxPoint
}{ConvertPixelsToDialog
}{\param{const wxPoint\&
}{ pt
}}
429 \func{wxSize
}{ConvertPixelsToDialog
}{\param{const wxSize\&
}{ sz
}}
431 Converts a point or size from pixels to dialog units.
433 For the x dimension, the pixels are multiplied by
4 and then divided by the average
436 For the y dimension, the pixels are multiplied by
8 and then divided by the average
441 Dialog units are used for maintaining a dialog's proportions even if the font changes.
445 \helpref{wxWindow::ConvertDialogToPixels
}{wxwindowconvertdialogtopixels
}
447 \pythonnote{In place of a single overloaded method name, wxPython implements the following methods:
\par
448 \indented{2cm
}{\begin{twocollist
}
449 \twocolitem{{\bf ConvertDialogPointToPixels(point)
}}{Accepts and returns a wxPoint
}
450 \twocolitem{{\bf ConvertDialogSizeToPixels(size)
}}{Accepts and returns a wxSize
}
455 \membersection{wxWindow::Destroy
}\label{wxwindowdestroy
}
457 \func{virtual bool
}{Destroy
}{\void}
459 Destroys the window safely. Use this function instead of the delete operator, since
460 different window classes can be destroyed differently. Frames and dialogs
461 are not destroyed immediately when this function is called -- they are added
462 to a list of windows to be deleted on idle time, when all the window's events
463 have been processed. This prevents problems with events being sent to non-existent
466 \wxheading{Return value
}
468 {\tt true
} if the window has either been successfully deleted, or it has been added
469 to the list of windows pending real deletion.
472 \membersection{wxWindow::DestroyChildren
}\label{wxwindowdestroychildren
}
474 \func{virtual void
}{DestroyChildren
}{\void}
476 Destroys all children of a window. Called automatically by the destructor.
479 \membersection{wxWindow::Disable
}\label{wxwindowdisable
}
481 \func{bool
}{Disable
}{\void}
483 Disables the window, same as
\helpref{Enable(
{\tt false
})
}{wxwindowenable
}.
485 \wxheading{Return value
}
487 Returns
{\tt true
} if the window has been disabled,
{\tt false
} if it had been
488 already disabled before the call to this function.
491 \membersection{wxWindow::DoGetBestSize
}\label{wxwindowdogetbestsize
}
493 \constfunc{virtual wxSize
}{DoGetBestSize
}{\void}
495 Gets the size which best suits the window: for a control, it would be
496 the minimal size which doesn't truncate the control, for a panel - the
497 same size as it would have after a call to
\helpref{Fit()
}{wxwindowfit
}.
500 \membersection{wxWindow::DoUpdateWindowUI
}\label{wxwindowdoupdatewindowui
}
502 \func{virtual void
}{DoUpdateWindowUI
}{\param{wxUpdateUIEvent\&
}{ event
}}
504 Does the window-specific updating after processing the update event.
505 This function is called by
\helpref{wxWindow::UpdateWindowUI
}{wxwindowupdatewindowui
}
506 in order to check return values in the
\helpref{wxUpdateUIEvent
}{wxupdateuievent
} and
507 act appropriately. For example, to allow frame and dialog title updating, wxWidgets
508 implements this function as follows:
511 // do the window-specific processing after processing the update event
512 void wxTopLevelWindowBase::DoUpdateWindowUI(wxUpdateUIEvent& event)
514 if ( event.GetSetEnabled() )
515 Enable(event.GetEnabled());
517 if ( event.GetSetText() )
519 if ( event.GetText() != GetTitle() )
520 SetTitle(event.GetText());
527 \membersection{wxWindow::DragAcceptFiles
}\label{wxwindowdragacceptfiles
}
529 \func{virtual void
}{DragAcceptFiles
}{\param{bool
}{ accept
}}
531 Enables or disables eligibility for drop file events (OnDropFiles).
533 \wxheading{Parameters
}
535 \docparam{accept
}{If
{\tt true
}, the window is eligible for drop file events. If
{\tt false
}, the window
536 will not accept drop file events.
}
543 \membersection{wxWindow::Enable
}\label{wxwindowenable
}
545 \func{virtual bool
}{Enable
}{\param{bool
}{ enable =
{\tt true
}}}
547 Enable or disable the window for user input. Note that when a parent window is
548 disabled, all of its children are disabled as well and they are reenabled again
551 \wxheading{Parameters
}
553 \docparam{enable
}{If
{\tt true
}, enables the window for input. If
{\tt false
}, disables the window.
}
555 \wxheading{Return value
}
557 Returns
{\tt true
} if the window has been enabled or disabled,
{\tt false
} if
558 nothing was done, i.e. if the window had already been in the specified state.
562 \helpref{wxWindow::IsEnabled
}{wxwindowisenabled
},
\rtfsp
563 \helpref{wxWindow::Disable
}{wxwindowdisable
},
\rtfsp
564 \helpref{wxRadioBox::Enable
}{wxradioboxenable
}
567 \membersection{wxWindow::FindFocus
}\label{wxwindowfindfocus
}
569 \func{static wxWindow*
}{FindFocus
}{\void}
571 Finds the window or control which currently has the keyboard focus.
575 Note that this is a static function, so it can be called without needing a wxWindow pointer.
579 \helpref{wxWindow::SetFocus
}{wxwindowsetfocus
}
583 \membersection{wxWindow::FindWindow
}\label{wxwindowfindwindow
}
585 \constfunc{wxWindow*
}{FindWindow
}{\param{long
}{ id
}}
587 Find a child of this window, by identifier.
589 \constfunc{wxWindow*
}{FindWindow
}{\param{const wxString\&
}{ name
}}
591 Find a child of this window, by name.
593 \pythonnote{In place of a single overloaded method name, wxPython
594 implements the following methods:
\par
595 \indented{2cm
}{\begin{twocollist
}
596 \twocolitem{{\bf FindWindowById(id)
}}{Accepts an integer
}
597 \twocolitem{{\bf FindWindowByName(name)
}}{Accepts a string
}
602 \membersection{wxWindow::FindWindowById
}\label{wxwindowfindwindowbyid
}
604 \func{static wxWindow*
}{FindWindowById
}{\param{long
}{ id
},
\param{wxWindow*
}{ parent = NULL
}}
606 Find the first window with the given
{\it id
}.
608 If
{\it parent
} is NULL, the search will start from all top-level
609 frames and dialog boxes; if non-NULL, the search will be limited to the given window hierarchy.
610 The search is recursive in both cases.
614 \helpref{FindWindow
}{wxwindowfindwindow
}
617 \membersection{wxWindow::FindWindowByName
}\label{wxwindowfindwindowbyname
}
619 \func{static wxWindow*
}{FindWindowByName
}{\param{const wxString\&
}{ name
},
\param{wxWindow*
}{ parent = NULL
}}
621 Find a window by its name (as given in a window constructor or
{\bf Create
} function call).
622 If
{\it parent
} is NULL, the search will start from all top-level
623 frames and dialog boxes; if non-NULL, the search will be limited to the given window hierarchy.
624 The search is recursive in both cases.
626 If no window with such name is found,
627 \helpref{FindWindowByLabel
}{wxwindowfindwindowbylabel
} is called.
631 \helpref{FindWindow
}{wxwindowfindwindow
}
634 \membersection{wxWindow::FindWindowByLabel
}\label{wxwindowfindwindowbylabel
}
636 \func{static wxWindow*
}{FindWindowByLabel
}{\param{const wxString\&
}{ label
},
\param{wxWindow*
}{ parent = NULL
}}
638 Find a window by its label. Depending on the type of window, the label may be a window title
639 or panel item label. If
{\it parent
} is NULL, the search will start from all top-level
640 frames and dialog boxes; if non-NULL, the search will be limited to the given window hierarchy.
641 The search is recursive in both cases.
645 \helpref{FindWindow
}{wxwindowfindwindow
}
648 \membersection{wxWindow::Fit
}\label{wxwindowfit
}
650 \func{virtual void
}{Fit
}{\void}
652 Sizes the window so that it fits around its subwindows. This function won't do
653 anything if there are no subwindows and will only really work correctly if the
654 sizers are used for the subwindows layout. Also, if the window has exactly one
655 subwindow it is better (faster and the result is more precise as Fit adds some
656 margin to account for fuzziness of its calculations) to call
659 window->SetClientSize(child->GetSize());
662 instead of calling Fit.
665 \membersection{wxWindow::FitInside
}\label{wxwindowfitinside
}
667 \func{virtual void
}{FitInside
}{\void}
669 Similar to
\helpref{Fit
}{wxwindowfit
}, but sizes the interior (virtual) size
670 of a window. Mainly useful with scrolled windows to reset scrollbars after
671 sizing changes that do not trigger a size event, and/or scrolled windows without
672 an interior sizer. This function similarly won't do anything if there are no
676 \membersection{wxWindow::Freeze
}\label{wxwindowfreeze
}
678 \func{virtual void
}{Freeze
}{\void}
680 Freezes the window or, in other words, prevents any updates from taking place
681 on screen, the window is not redrawn at all.
\helpref{Thaw
}{wxwindowthaw
} must
682 be called to reenable window redrawing. Calls to these two functions may be
685 This method is useful for visual appearance optimization (for example, it
686 is a good idea to use it before doing many large text insertions in a row into
687 a wxTextCtrl under wxGTK) but is not implemented on all platforms nor for all
688 controls so it is mostly just a hint to wxWidgets and not a mandatory
692 \membersection{wxWindow::GetAcceleratorTable
}\label{wxwindowgetacceleratortable
}
694 \constfunc{wxAcceleratorTable*
}{GetAcceleratorTable
}{\void}
696 Gets the accelerator table for this window. See
\helpref{wxAcceleratorTable
}{wxacceleratortable
}.
699 \membersection{wxWindow::GetAccessible
}\label{wxwindowgetaccessible
}
701 \func{wxAccessible*
}{GetAccessible
}{\void}
703 Returns the accessible object for this window, if any.
705 See also
\helpref{wxAccessible
}{wxaccessible
}.
708 \membersection{wxWindow::GetAdjustedBestSize
}\label{wxwindowgetadjustedbestsize
}
710 \constfunc{wxSize
}{GetAdjustedBestSize
}{\void}
712 This method is similar to
\helpref{GetBestSize
}{wxwindowgetbestsize
}, except
713 in one thing. GetBestSize should return the minimum untruncated size of the
714 window, while this method will return the largest of BestSize and any user
715 specified minimum size. ie. it is the minimum size the window should currently
716 be drawn at, not the minimal size it can possibly tolerate.
719 \membersection{wxWindow::GetBackgroundColour
}\label{wxwindowgetbackgroundcolour
}
721 \constfunc{virtual wxColour
}{GetBackgroundColour
}{\void}
723 Returns the background colour of the window.
727 \helpref{wxWindow::SetBackgroundColour
}{wxwindowsetbackgroundcolour
},
\rtfsp
728 \helpref{wxWindow::SetForegroundColour
}{wxwindowsetforegroundcolour
},
\rtfsp
729 \helpref{wxWindow::GetForegroundColour
}{wxwindowgetforegroundcolour
}
731 \membersection{wxWindow::GetBackgroundStyle
}\label{wxwindowgetbackgroundstyle
}
733 \constfunc{virtual wxBackgroundStyle
}{GetBackgroundStyle
}{\void}
735 Returns the background style of the window. The background style indicates
736 whether background colour should be determined by the system (wxBG
\_STYLE\_SYSTEM),
737 be set to a specific colour (wxBG
\_STYLE\_COLOUR), or should be left to the
738 application to implement (wxBG
\_STYLE\_CUSTOM).
740 On GTK+, use of wxBG
\_STYLE\_CUSTOM allows the flicker-free drawing of a custom
741 background, such as a tiled bitmap. Currently the style has no effect on other platforms.
745 \helpref{wxWindow::SetBackgroundColour
}{wxwindowsetbackgroundcolour
},
\rtfsp
746 \helpref{wxWindow::GetForegroundColour
}{wxwindowgetforegroundcolour
},
\rtfsp
747 \helpref{wxWindow::SetBackgroundStyle
}{wxwindowsetbackgroundstyle
}
749 \membersection{wxWindow::GetBestFittingSize
}\label{wxwindowgetbestfittingsize
}
751 \constfunc{wxSize
}{GetBestFittingSize
}{\void}
753 Merges the window's best size into the min size and returns the result.
757 \helpref{wxWindow::GetBestSize
}{wxwindowgetbestsize
},
\rtfsp
758 \helpref{wxWindow::SetBestFittingSize
}{wxwindowsetbestfittingsize
},
\rtfsp
759 \helpref{wxWindow::SetSizeHints
}{wxwindowsetsizehints
}
762 \membersection{wxWindow::GetBestSize
}\label{wxwindowgetbestsize
}
764 \constfunc{wxSize
}{GetBestSize
}{\void}
766 This functions returns the best acceptable minimal size for the window. For
767 example, for a static control, it will be the minimal size such that the
768 control label is not truncated. For windows containing subwindows (typically
769 \helpref{wxPanel
}{wxpanel
}), the size returned by this function will be the
770 same as the size the window would have had after calling
771 \helpref{Fit
}{wxwindowfit
}.
774 \membersection{wxWindow::GetCaret
}\label{wxwindowgetcaret
}
776 \constfunc{wxCaret *
}{GetCaret
}{\void}
778 Returns the
\helpref{caret
}{wxcaret
} associated with the window.
781 \membersection{wxWindow::GetCapture
}\label{wxwindowgetcapture
}
783 \func{static wxWindow *
}{GetCapture
}{\void}
785 Returns the currently captured window.
789 \helpref{wxWindow::HasCapture
}{wxwindowhascapture
},
790 \helpref{wxWindow::CaptureMouse
}{wxwindowcapturemouse
},
791 \helpref{wxWindow::ReleaseMouse
}{wxwindowreleasemouse
},
792 \helpref{wxMouseCaptureChangedEvent
}{wxmousecapturechangedevent
}
795 \membersection{wxWindow::GetCharHeight
}\label{wxwindowgetcharheight
}
797 \constfunc{virtual int
}{GetCharHeight
}{\void}
799 Returns the character height for this window.
802 \membersection{wxWindow::GetCharWidth
}\label{wxwindowgetcharwidth
}
804 \constfunc{virtual int
}{GetCharWidth
}{\void}
806 Returns the average character width for this window.
809 \membersection{wxWindow::GetChildren
}\label{wxwindowgetchildren
}
811 \func{wxList\&
}{GetChildren
}{\void}
813 Returns a reference to the list of the window's children.
816 \membersection{wxWindow::GetClassDefaultAttributes
}\label{wxwindowgetclassdefaultattributes
}
818 \func{static wxVisualAttributes
}{GetClassDefaultAttributes
}{\param{wxWindowVariant
}{ variant =
\texttt{wxWINDOW
\_VARIANT\_NORMAL}}}
820 Returns the default font and colours which are used by the control. This is
821 useful if you want to use the same font or colour in your own control as in a
822 standard control -- which is a much better idea than hard coding specific
823 colours or fonts which might look completely out of place on the users
824 system, especially if it uses themes.
826 The
\arg{variant
} parameter is only relevant under Mac currently and is
827 ignore under other platforms. Under Mac, it will change the size of the
828 returned font. See
\helpref{wxWindow::SetWindowVariant
}{wxwindowsetwindowvariant
}
831 This static method is ``overridden'' in many derived classes and so calling,
832 for example,
\helpref{wxButton
}{wxbutton
}::GetClassDefaultAttributes() will typically
833 return the values appropriate for a button which will be normally different
834 from those returned by, say,
\helpref{wxListCtrl
}{wxlistctrl
}::GetClassDefaultAttributes().
836 The
\texttt{wxVisualAttributes
} structure has at least the fields
837 \texttt{font
},
\texttt{colFg
} and
\texttt{colBg
}. All of them may be invalid
838 if it was not possible to determine the default control appearance or,
839 especially for the background colour, if the field doesn't make sense as is
840 the case for
\texttt{colBg
} for the controls with themed background.
844 \helpref{InheritAttributes
}{wxwindowinheritattributes
}
847 \membersection{wxWindow::GetClientSize
}\label{wxwindowgetclientsize
}
849 \constfunc{void
}{GetClientSize
}{\param{int*
}{width
},
\param{int*
}{height
}}
851 \perlnote{In wxPerl this method takes no parameter and returns
852 a
2-element list
{\tt (width, height)
}.
}
854 \constfunc{wxSize
}{GetClientSize
}{\void}
856 This gets the size of the window `client area' in pixels.
857 The client area is the area which may be drawn on by the programmer,
858 excluding title bar, border, scrollbars, etc.
860 \wxheading{Parameters
}
862 \docparam{width
}{Receives the client width in pixels.
}
864 \docparam{height
}{Receives the client height in pixels.
}
866 \pythonnote{In place of a single overloaded method name, wxPython
867 implements the following methods:
\par
868 \indented{2cm
}{\begin{twocollist
}
869 \twocolitem{{\bf GetClientSizeTuple()
}}{Returns a
2-tuple of (width, height)
}
870 \twocolitem{{\bf GetClientSize()
}}{Returns a wxSize object
}
876 \helpref{GetSize
}{wxwindowgetsize
},
\rtfsp
877 \helpref{GetVirtualSize
}{wxwindowgetvirtualsize
}
881 \membersection{wxWindow::GetConstraints
}\label{wxwindowgetconstraints
}
883 \constfunc{wxLayoutConstraints*
}{GetConstraints
}{\void}
885 Returns a pointer to the window's layout constraints, or NULL if there are none.
888 \membersection{wxWindow::GetContainingSizer
}\label{wxwindowgetcontainingsizer
}
890 \constfunc{const wxSizer *
}{GetContainingSizer
}{\void}
892 Return the sizer that this window is a member of, if any, otherwise
896 \membersection{wxWindow::GetCursor
}\label{wxwindowgetcursor
}
898 \constfunc{const wxCursor\&
}{GetCursor
}{\void}
900 Return the cursor associated with this window.
904 \helpref{wxWindow::SetCursor
}{wxwindowsetcursor
}
907 \membersection{wxWindow::GetDefaultAttributes
}\label{wxwindowgetdefaultattributes
}
909 \constfunc{virtual wxVisualAttributes
}{GetDefaultAttributes
}{\void}
911 Currently this is the same as calling
912 \helpref{GetClassDefaultAttributes
}{wxwindowgetclassdefaultattributes
}(
\helpref{GetWindowVariant
}{wxwindowgetwindowvariant
}()).
914 One advantage of using this function compared to the static version is that
915 the call is automatically dispatched to the correct class (as usual with
916 virtual functions) and you don't have to specify the class name explicitly.
918 The other one is that in the future this function could return different
919 results, for example it might return a different font for an ``Ok'' button
920 than for a generic button if the users GUI is configured to show such buttons
921 in bold font. Of course, the down side is that it is impossible to call this
922 function without actually having an object to apply it to whereas the static
923 version can be used without having to create an object first.
926 \membersection{wxWindow::GetDropTarget
}\label{wxwindowgetdroptarget
}
928 \constfunc{wxDropTarget*
}{GetDropTarget
}{\void}
930 Returns the associated drop target, which may be NULL.
934 \helpref{wxWindow::SetDropTarget
}{wxwindowsetdroptarget
},
935 \helpref{Drag and drop overview
}{wxdndoverview
}
938 \membersection{wxWindow::GetEventHandler
}\label{wxwindowgeteventhandler
}
940 \constfunc{wxEvtHandler*
}{GetEventHandler
}{\void}
942 Returns the event handler for this window. By default, the window is its
947 \helpref{wxWindow::SetEventHandler
}{wxwindowseteventhandler
},
\rtfsp
948 \helpref{wxWindow::PushEventHandler
}{wxwindowpusheventhandler
},
\rtfsp
949 \helpref{wxWindow::PopEventHandler
}{wxwindowpusheventhandler
},
\rtfsp
950 \helpref{wxEvtHandler::ProcessEvent
}{wxevthandlerprocessevent
},
\rtfsp
951 \helpref{wxEvtHandler
}{wxevthandler
}\rtfsp
954 \membersection{wxWindow::GetExtraStyle
}\label{wxwindowgetextrastyle
}
956 \constfunc{long
}{GetExtraStyle
}{\void}
958 Returns the extra style bits for the window.
961 \membersection{wxWindow::GetFont
}\label{wxwindowgetfont
}
963 \constfunc{wxFont
}{GetFont
}{\void}
965 Returns the font for this window.
969 \helpref{wxWindow::SetFont
}{wxwindowsetfont
}
972 \membersection{wxWindow::GetForegroundColour
}\label{wxwindowgetforegroundcolour
}
974 \func{virtual wxColour
}{GetForegroundColour
}{\void}
976 Returns the foreground colour of the window.
980 The interpretation of foreground colour is open to interpretation according
981 to the window class; it may be the text colour or other colour, or it may not
986 \helpref{wxWindow::SetForegroundColour
}{wxwindowsetforegroundcolour
},
\rtfsp
987 \helpref{wxWindow::SetBackgroundColour
}{wxwindowsetbackgroundcolour
},
\rtfsp
988 \helpref{wxWindow::GetBackgroundColour
}{wxwindowgetbackgroundcolour
}
991 \membersection{wxWindow::GetGrandParent
}\label{wxwindowgetgrandparent
}
993 \constfunc{wxWindow*
}{GetGrandParent
}{\void}
995 Returns the grandparent of a window, or NULL if there isn't one.
998 \membersection{wxWindow::GetHandle
}\label{wxwindowgethandle
}
1000 \constfunc{void*
}{GetHandle
}{\void}
1002 Returns the platform-specific handle of the physical window. Cast it to an appropriate
1003 handle, such as
{\bf HWND
} for Windows,
{\bf Widget
} for Motif,
{\bf GtkWidget
} for GTK or
{\bf WinHandle
} for PalmOS.
1005 \pythonnote{This method will return an integer in wxPython.
}
1007 \perlnote{This method will return an integer in wxPerl.
}
1010 \membersection{wxWindow::GetHelpText
}\label{wxwindowgethelptext
}
1012 \constfunc{virtual wxString
}{GetHelpText
}{\void}
1014 Gets the help text to be used as context-sensitive help for this window.
1016 Note that the text is actually stored by the current
\helpref{wxHelpProvider
}{wxhelpprovider
} implementation,
1017 and not in the window object itself.
1019 \wxheading{See also
}
1021 \helpref{SetHelpText
}{wxwindowsethelptext
},
\helpref{wxHelpProvider
}{wxhelpprovider
}
1024 \membersection{wxWindow::GetId
}\label{wxwindowgetid
}
1026 \constfunc{int
}{GetId
}{\void}
1028 Returns the identifier of the window.
1032 Each window has an integer identifier. If the application has not provided one
1033 (or the default Id -
1) an unique identifier with a negative value will be generated.
1035 \wxheading{See also
}
1037 \helpref{wxWindow::SetId
}{wxwindowsetid
},
\rtfsp
1038 \helpref{Window identifiers
}{windowids
}
1041 \membersection{wxWindow::GetLabel
}\label{wxwindowgetlabel
}
1043 \constfunc{virtual wxString
}{GetLabel
}{\void}
1045 Generic way of getting a label from any window, for
1046 identification purposes.
1050 The interpretation of this function differs from class to class.
1051 For frames and dialogs, the value returned is the title. For buttons or static text controls, it is
1052 the button text. This function can be useful for meta-programs (such as testing
1053 tools or special-needs access programs) which need to identify windows
1056 \membersection{wxWindow::GetMaxSize
}\label{wxwindowgetmaxsize
}
1058 \constfunc{wxSize
}{GetMaxSize
}{\void}
1060 Returns the maximum size of the window, an indication to the sizer layout mechanism
1061 that this is the maximum possible size.
1063 \membersection{wxWindow::GetMinSize
}\label{wxwindowgetminsize
}
1065 \constfunc{wxSize
}{GetMinSize
}{\void}
1067 Returns the minimum size of the window, an indication to the sizer layout mechanism
1068 that this is the minimum required size.
1070 \membersection{wxWindow::GetName
}\label{wxwindowgetname
}
1072 \constfunc{virtual wxString
}{GetName
}{\void}
1074 Returns the window's name.
1078 This name is not guaranteed to be unique; it is up to the programmer to supply an appropriate
1079 name in the window constructor or via
\helpref{wxWindow::SetName
}{wxwindowsetname
}.
1081 \wxheading{See also
}
1083 \helpref{wxWindow::SetName
}{wxwindowsetname
}
1086 \membersection{wxWindow::GetParent
}\label{wxwindowgetparent
}
1088 \constfunc{virtual wxWindow*
}{GetParent
}{\void}
1090 Returns the parent of the window, or NULL if there is no parent.
1093 \membersection{wxWindow::GetPosition
}\label{wxwindowgetposition
}
1095 \constfunc{virtual void
}{GetPosition
}{\param{int*
}{x
},
\param{int*
}{y
}}
1097 \constfunc{wxPoint
}{GetPosition
}{\void}
1099 This gets the position of the window in pixels, relative to the parent window
1100 for the child windows or relative to the display origin for the top level
1103 \wxheading{Parameters
}
1105 \docparam{x
}{Receives the x position of the window.
}
1107 \docparam{y
}{Receives the y position of the window.
}
1109 \pythonnote{In place of a single overloaded method name, wxPython
1110 implements the following methods:
\par
1111 \indented{2cm
}{\begin{twocollist
}
1112 \twocolitem{{\bf GetPosition()
}}{Returns a wxPoint
}
1113 \twocolitem{{\bf GetPositionTuple()
}}{Returns a tuple (x, y)
}
1117 \perlnote{In wxPerl there are two methods instead of a single overloaded
1119 \indented{2cm
}{\begin{twocollist
}
1120 \twocolitem{{\bf GetPosition()
}}{Returns a Wx::Point
}
1121 \twocolitem{{\bf GetPositionXY()
}}{Returns a
2-element list
1127 \membersection{wxWindow::GetRect
}\label{wxwindowgetrect
}
1129 \constfunc{virtual wxRect
}{GetRect
}{\void}
1131 Returns the size and position of the window as a
\helpref{wxRect
}{wxrect
} object.
1134 \membersection{wxWindow::GetScrollPos
}\label{wxwindowgetscrollpos
}
1136 \func{virtual int
}{GetScrollPos
}{\param{int
}{orientation
}}
1138 Returns the built-in scrollbar position.
1140 \wxheading{See also
}
1142 See
\helpref{wxWindow::SetScrollbar
}{wxwindowsetscrollbar
}
1145 \membersection{wxWindow::GetScrollRange
}\label{wxwindowgetscrollrange
}
1147 \func{virtual int
}{GetScrollRange
}{\param{int
}{orientation
}}
1149 Returns the built-in scrollbar range.
1151 \wxheading{See also
}
1153 \helpref{wxWindow::SetScrollbar
}{wxwindowsetscrollbar
}
1156 \membersection{wxWindow::GetScrollThumb
}\label{wxwindowgetscrollthumb
}
1158 \func{virtual int
}{GetScrollThumb
}{\param{int
}{orientation
}}
1160 Returns the built-in scrollbar thumb size.
1162 \wxheading{See also
}
1164 \helpref{wxWindow::SetScrollbar
}{wxwindowsetscrollbar
}
1167 \membersection{wxWindow::GetSize
}\label{wxwindowgetsize
}
1169 \constfunc{void
}{GetSize
}{\param{int*
}{width
},
\param{int*
}{height
}}
1171 \constfunc{wxSize
}{GetSize
}{\void}
1173 This gets the size of the entire window in pixels,
1174 including title bar, border, scrollbars, etc.
1176 \wxheading{Parameters
}
1178 \docparam{width
}{Receives the window width.
}
1180 \docparam{height
}{Receives the window height.
}
1182 \pythonnote{In place of a single overloaded method name, wxPython
1183 implements the following methods:
\par
1184 \indented{2cm
}{\begin{twocollist
}
1185 \twocolitem{{\bf GetSize()
}}{Returns a wxSize
}
1186 \twocolitem{{\bf GetSizeTuple()
}}{Returns a
2-tuple (width, height)
}
1190 \perlnote{In wxPerl there are two methods instead of a single overloaded
1192 \indented{2cm
}{\begin{twocollist
}
1193 \twocolitem{{\bf GetSize()
}}{Returns a Wx::Size
}
1194 \twocolitem{{\bf GetSizeWH()
}}{Returns a
2-element list
1195 {\tt ( width, height )
}}
1199 \wxheading{See also
}
1201 \helpref{GetClientSize
}{wxwindowgetclientsize
},
\rtfsp
1202 \helpref{GetVirtualSize
}{wxwindowgetvirtualsize
}
1205 \membersection{wxWindow::GetSizer
}\label{wxwindowgetsizer
}
1207 \constfunc{wxSizer *
}{GetSizer
}{\void}
1209 Return the sizer associated with the window by a previous call to
1210 \helpref{SetSizer()
}{wxwindowsetsizer
} or
{\tt NULL
}.
1213 \membersection{wxWindow::GetTextExtent
}\label{wxwindowgettextextent
}
1215 \constfunc{virtual void
}{GetTextExtent
}{\param{const wxString\&
}{string
},
\param{int*
}{x
},
\param{int*
}{y
},
1216 \param{int*
}{descent = NULL
},
\param{int*
}{externalLeading = NULL
},
1217 \param{const wxFont*
}{font = NULL
},
\param{bool
}{ use16 =
{\tt false
}}}
1219 Gets the dimensions of the string as it would be drawn on the
1220 window with the currently selected font.
1222 \wxheading{Parameters
}
1224 \docparam{string
}{String whose extent is to be measured.
}
1226 \docparam{x
}{Return value for width.
}
1228 \docparam{y
}{Return value for height.
}
1230 \docparam{descent
}{Return value for descent (optional).
}
1232 \docparam{externalLeading
}{Return value for external leading (optional).
}
1234 \docparam{font
}{Font to use instead of the current window font (optional).
}
1236 \docparam{use16
}{If
{\tt true
},
{\it string
} contains
16-bit characters. The default is
{\tt false
}.
}
1238 \pythonnote{In place of a single overloaded method name, wxPython
1239 implements the following methods:
\par
1240 \indented{2cm
}{\begin{twocollist
}
1241 \twocolitem{{\bf GetTextExtent(string)
}}{Returns a
2-tuple, (width, height)
}
1242 \twocolitem{{\bf GetFullTextExtent(string, font=NULL)
}}{Returns a
1243 4-tuple, (width, height, descent, externalLeading)
}
1247 \perlnote{In wxPerl this method takes only the
{\tt string
} and optionally
1248 {\tt font
} parameters, and returns a
4-element list
1249 {\tt ( x, y, descent, externalLeading )
}.
}
1252 \membersection{wxWindow::GetTitle
}\label{wxwindowgettitle
}
1254 \func{virtual wxString
}{GetTitle
}{\void}
1256 Gets the window's title. Applicable only to frames and dialogs.
1258 \wxheading{See also
}
1260 \helpref{wxWindow::SetTitle
}{wxwindowsettitle
}
1263 \membersection{wxWindow::GetToolTip
}\label{wxwindowgettooltip
}
1265 \constfunc{wxToolTip*
}{GetToolTip
}{\void}
1267 Get the associated tooltip or NULL if none.
1270 \membersection{wxWindow::GetUpdateRegion
}\label{wxwindowgetupdateregion
}
1272 \constfunc{virtual wxRegion
}{GetUpdateRegion
}{\void}
1274 Returns the region specifying which parts of the window have been damaged. Should
1275 only be called within an
\helpref{wxPaintEvent
}{wxpaintevent
} handler.
1277 \wxheading{See also
}
1279 \helpref{wxRegion
}{wxregion
},
\rtfsp
1280 \helpref{wxRegionIterator
}{wxregioniterator
}
1283 \membersection{wxWindow::GetValidator
}\label{wxwindowgetvalidator
}
1285 \constfunc{wxValidator*
}{GetValidator
}{\void}
1287 Returns a pointer to the current validator for the window, or NULL if there is none.
1290 \membersection{wxWindow::GetVirtualSize
}\label{wxwindowgetvirtualsize
}
1292 \constfunc{void
}{GetVirtualSize
}{\param{int*
}{width
},
\param{int*
}{height
}}
1294 \constfunc{wxSize
}{GetVirtualSize
}{\void}
1296 This gets the virtual size of the window in pixels. By default it
1297 returns the client size of the window, but after a call to
1298 \helpref{SetVirtualSize
}{wxwindowsetvirtualsize
} it will return
1301 \wxheading{Parameters
}
1303 \docparam{width
}{Receives the window virtual width.
}
1305 \docparam{height
}{Receives the window virtual height.
}
1307 \helpref{GetSize
}{wxwindowgetsize
},
\rtfsp
1308 \helpref{GetClientSize
}{wxwindowgetclientsize
}
1311 \membersection{wxWindow::GetWindowStyleFlag
}\label{wxwindowgetwindowstyleflag
}
1313 \constfunc{long
}{GetWindowStyleFlag
}{\void}
1315 Gets the window style that was passed to the constructor or
{\bf Create
}
1316 method.
{\bf GetWindowStyle()
} is another name for the same function.
1319 \membersection{wxWindow::GetWindowVariant
}\label{wxwindowgetwindowvariant
}
1321 \constfunc{wxWindowVariant
}{GetWindowVariant
}{\void}
1323 Returns the value previous passed to
1324 \helpref{wxWindow::SetWindowVariant
}{wxwindowsetwindowvariant
}.
1327 \membersection{wxWindow::HasCapture
}\label{wxwindowhascapture
}
1329 \constfunc{virtual bool
}{HasCapture
}{\void}
1331 Returns
{\tt true
} if this window has the current mouse capture.
1333 \wxheading{See also
}
1335 \helpref{wxWindow::CaptureMouse
}{wxwindowcapturemouse
},
1336 \helpref{wxWindow::ReleaseMouse
}{wxwindowreleasemouse
},
1337 \helpref{wxMouseCaptureChangedEvent
}{wxmousecapturechangedevent
}
1340 \membersection{wxWindow::HasScrollbar
}\label{wxwindowhasscrollbar
}
1342 \constfunc{virtual bool
}{HasScrollbar
}{\param{int
}{orient
}}
1344 Returns
{\tt true
} if this window has a scroll bar for this orientation.
1346 \wxheading{Parameters
}
1348 \docparam{orient
}{Orientation to check, either
{\tt wxHORIZONTAL
} or
{\tt wxVERTICAL
}.
}
1351 \membersection{wxWindow::HasTransparentBackground
}\label{wxwindowhastransparentbackground
}
1353 \constfunc{virtual bool
}{HasTransparentBackground
}{\void}
1355 Returns
\true if this window background is transparent (as, for example, for
1356 wxStaticText) and should show the parent window background.
1358 This method is mostly used internally by the library itself and you normally
1359 shouldn't have to call it. You may, however, have to override it in your
1360 wxWindow-derived class to ensure that background is painted correctly.
1363 \membersection{wxWindow::Hide
}\label{wxwindowhide
}
1365 \func{bool
}{Hide
}{\void}
1367 Equivalent to calling
\helpref{Show
}{wxwindowshow
}(
{\tt false
}).
1370 \membersection{wxWindow::InheritAttributes
}\label{wxwindowinheritattributes
}
1372 \func{void
}{InheritAttributes
}{\void}
1374 This function is (or should be, in case of custom controls) called during
1375 window creation to intelligently set up the window visual attributes, that is
1376 the font and the foreground and background colours.
1378 By ``intelligently'' the following is meant: by default, all windows use their
1379 own
\helpref{default
}{wxwindowgetclassdefaultattributes
} attributes. However
1380 if some of the parents attributes are explicitly (that is, using
1381 \helpref{SetFont
}{wxwindowsetfont
} and not
1382 \helpref{SetOwnFont
}{wxwindowsetownfont
}) changed
\emph{and
} if the
1383 corresponding attribute hadn't been explicitly set for this window itself,
1384 then this window takes the same value as used by the parent. In addition, if
1385 the window overrides
\helpref{ShouldInheritColours
}{wxwindowshouldinheritcolours
}
1386 to return
\false, the colours will not be changed no matter what and only the
1389 This rather complicated logic is necessary in order to accommodate the
1390 different usage scenarios. The most common one is when all default attributes
1391 are used and in this case, nothing should be inherited as in modern GUIs
1392 different controls use different fonts (and colours) than their siblings so
1393 they can't inherit the same value from the parent. However it was also deemed
1394 desirable to allow to simply change the attributes of all children at once by
1395 just changing the font or colour of their common parent, hence in this case we
1396 do inherit the parents attributes.
1399 \membersection{wxWindow::InitDialog
}\label{wxwindowinitdialog
}
1401 \func{void
}{InitDialog
}{\void}
1403 Sends an
{\tt wxEVT
\_INIT\_DIALOG} event, whose handler usually transfers data
1404 to the dialog via validators.
1407 \membersection{wxWindow::InvalidateBestSize
}\label{wxwindowinvalidatebestsize
}
1409 \func{void
}{InvalidateBestSize
}{\void}
1411 Resets the cached best size value so it will be recalculated the next time it is needed.
1414 \membersection{wxWindow::IsEnabled
}\label{wxwindowisenabled
}
1416 \constfunc{virtual bool
}{IsEnabled
}{\void}
1418 Returns
{\tt true
} if the window is enabled for input,
{\tt false
} otherwise.
1420 \wxheading{See also
}
1422 \helpref{wxWindow::Enable
}{wxwindowenable
}
1425 \membersection{wxWindow::IsExposed
}\label{wxwindowisexposed
}
1427 \constfunc{bool
}{IsExposed
}{\param{int
}{x
},
\param{int
}{y
}}
1429 \constfunc{bool
}{IsExposed
}{\param{wxPoint
}{\&pt
}}
1431 \constfunc{bool
}{IsExposed
}{\param{int
}{x
},
\param{int
}{y
},
\param{int
}{w
},
\param{int
}{h
}}
1433 \constfunc{bool
}{IsExposed
}{\param{wxRect
}{\&rect
}}
1435 Returns
{\tt true
} if the given point or rectangle area has been exposed since the
1436 last repaint. Call this in an paint event handler to optimize redrawing by
1437 only redrawing those areas, which have been exposed.
1439 \pythonnote{In place of a single overloaded method name, wxPython
1440 implements the following methods:
\par
1441 \indented{2cm
}{\begin{twocollist
}
1442 \twocolitem{{\bf IsExposed(x,y, w=
0,h=
0)
}}{}
1443 \twocolitem{{\bf IsExposedPoint(pt)
}}{}
1444 \twocolitem{{\bf IsExposedRect(rect)
}}{}
1448 \membersection{wxWindow::IsRetained
}\label{wxwindowisretained
}
1450 \constfunc{virtual bool
}{IsRetained
}{\void}
1452 Returns
{\tt true
} if the window is retained,
{\tt false
} otherwise.
1456 Retained windows are only available on X platforms.
1459 \membersection{wxWindow::IsShown
}\label{wxwindowisshown
}
1461 \constfunc{virtual bool
}{IsShown
}{\void}
1463 Returns
{\tt true
} if the window is shown,
{\tt false
} if it has been hidden.
1466 \membersection{wxWindow::IsTopLevel
}\label{wxwindowistoplevel
}
1468 \constfunc{bool
}{IsTopLevel
}{\void}
1470 Returns
{\tt true
} if the given window is a top-level one. Currently all frames and
1471 dialogs are considered to be top-level windows (even if they have a parent
1475 \membersection{wxWindow::Layout
}\label{wxwindowlayout
}
1477 \func{void
}{Layout
}{\void}
1479 Invokes the constraint-based layout algorithm or the sizer-based algorithm
1482 See
\helpref{wxWindow::SetAutoLayout
}{wxwindowsetautolayout
}: when auto
1483 layout is on, this function gets called automatically when the window is resized.
1486 \membersection{wxWindow::LineDown
}\label{wxwindowlinedown
}
1488 This is just a wrapper for
\helpref{ScrollLines()
}{wxwindowscrolllines
}$(
1)$.
1491 \membersection{wxWindow::LineUp
}\label{wxwindowlineup
}
1493 This is just a wrapper for
\helpref{ScrollLines()
}{wxwindowscrolllines
}$(-
1)$.
1496 \membersection{wxWindow::Lower
}\label{wxwindowlower
}
1498 \func{void
}{Lower
}{\void}
1500 Lowers the window to the bottom of the window hierarchy if it is a managed window (dialog
1504 \membersection{wxWindow::MakeModal
}\label{wxwindowmakemodal
}
1506 \func{virtual void
}{MakeModal
}{\param{bool
}{flag
}}
1508 Disables all other windows in the application so that
1509 the user can only interact with this window.
1511 \wxheading{Parameters
}
1513 \docparam{flag
}{If
{\tt true
}, this call disables all other windows in the application so that
1514 the user can only interact with this window. If
{\tt false
}, the effect is reversed.
}
1517 \membersection{wxWindow::Move
}\label{wxwindowmove
}
1519 \func{void
}{Move
}{\param{int
}{ x
},
\param{int
}{ y
}}
1521 \func{void
}{Move
}{\param{const wxPoint\&
}{ pt
}}
1523 Moves the window to the given position.
1525 \wxheading{Parameters
}
1527 \docparam{x
}{Required x position.
}
1529 \docparam{y
}{Required y position.
}
1531 \docparam{pt
}{\helpref{wxPoint
}{wxpoint
} object representing the position.
}
1535 Implementations of SetSize can also implicitly implement the
1536 wxWindow::Move function, which is defined in the base wxWindow class
1540 SetSize(x, y, -
1, -
1, wxSIZE_USE_EXISTING);
1543 \wxheading{See also
}
1545 \helpref{wxWindow::SetSize
}{wxwindowsetsize
}
1547 \pythonnote{In place of a single overloaded method name, wxPython
1548 implements the following methods:
\par
1549 \indented{2cm
}{\begin{twocollist
}
1550 \twocolitem{{\bf Move(point)
}}{Accepts a wxPoint
}
1551 \twocolitem{{\bf MoveXY(x, y)
}}{Accepts a pair of integers
}
1556 \membersection{wxWindow::MoveAfterInTabOrder
}\label{wxwindowmoveafterintaborder
}
1558 \func{void
}{MoveAfterInTabOrder
}{\param{wxWindow *
}{win
}}
1560 Moves this window in the tab navigation order after the specified
\arg{win
}.
1561 This means that when the user presses
\texttt{TAB
} key on that other window,
1562 the focus switches to this window.
1564 Default tab order is the same as creation order, this function and
1565 \helpref{MoveBeforeInTabOrder()
}{wxwindowmovebeforeintaborder
} allow to change
1566 it after creating all the windows.
1568 \wxheading{Parameters
}
1570 \docparam{win
}{A sibling of this window which should precede it in tab order,
1574 \membersection{wxWindow::MoveBeforeInTabOrder
}\label{wxwindowmovebeforeintaborder
}
1576 \func{void
}{MoveBeforeInTabOrder
}{\param{wxWindow *
}{win
}}
1578 Same as
\helpref{MoveAfterInTabOrder
}{wxwindowmoveafterintaborder
} except that
1579 it inserts this window just before
\arg{win
} instead of putting it right after
1583 \membersection{wxWindow::Navigate
}\label{wxwindownavigate
}
1585 \func{bool
}{Navigate
}{\param{int
}{ flags = wxNavigationKeyEvent::IsForward
}}
1587 Does keyboard navigation from this window to another, by sending
1588 a wxNavigationKeyEvent.
1590 \wxheading{Parameters
}
1592 \docparam{flags
}{A combination of wxNavigationKeyEvent::IsForward and wxNavigationKeyEvent::WinChange.
}
1596 You may wish to call this from a text control custom keypress handler to do the default
1597 navigation behaviour for the tab key, since the standard default behaviour for
1598 a multiline text control with the wxTE
\_PROCESS\_TAB style is to insert a tab
1599 and not navigate to the next control.
1601 %% VZ: wxWindow::OnXXX() functions should not be documented but I'm leaving
1602 %% the old docs here in case we want to move any still needed bits to
1603 %% the right location (i.e. probably the corresponding events docs)
1605 %% \membersection{wxWindow::OnActivate}\label{wxwindowonactivate}
1607 %% \func{void}{OnActivate}{\param{wxActivateEvent\&}{ event}}
1609 %% Called when a window is activated or deactivated.
1611 %% \wxheading{Parameters}
1613 %% \docparam{event}{Object containing activation information.}
1615 %% \wxheading{Remarks}
1617 %% If the window is being activated, \helpref{wxActivateEvent::GetActive}{wxactivateeventgetactive} returns {\tt true},
1618 %% otherwise it returns {\tt false} (it is being deactivated).
1620 %% \wxheading{See also}
1622 %% \helpref{wxActivateEvent}{wxactivateevent},\rtfsp
1623 %% \helpref{Event handling overview}{eventhandlingoverview}
1625 %% \membersection{wxWindow::OnChar}\label{wxwindowonchar}
1627 %% \func{void}{OnChar}{\param{wxKeyEvent\&}{ event}}
1629 %% Called when the user has pressed a key that is not a modifier (SHIFT, CONTROL or ALT).
1631 %% \wxheading{Parameters}
1633 %% \docparam{event}{Object containing keypress information. See \helpref{wxKeyEvent}{wxkeyevent} for
1634 %% details about this class.}
1636 %% \wxheading{Remarks}
1638 %% This member function is called in response to a keypress. To intercept this event,
1639 %% use the EVT\_CHAR macro in an event table definition. Your {\bf OnChar} handler may call this
1640 %% default function to achieve default keypress functionality.
1642 %% Note that the ASCII values do not have explicit key codes: they are passed as ASCII
1645 %% Note that not all keypresses can be intercepted this way. If you wish to intercept modifier
1646 %% keypresses, then you will need to use \helpref{wxWindow::OnKeyDown}{wxwindowonkeydown} or
1647 %% \helpref{wxWindow::OnKeyUp}{wxwindowonkeyup}.
1649 %% Most, but not all, windows allow keypresses to be intercepted.
1651 %% {\bf Tip:} be sure to call {\tt event.Skip()} for events that you don't process in this function,
1652 %% otherwise menu shortcuts may cease to work under Windows.
1654 %% \wxheading{See also}
1656 %% \helpref{wxWindow::OnKeyDown}{wxwindowonkeydown}, \helpref{wxWindow::OnKeyUp}{wxwindowonkeyup},\rtfsp
1657 %% \helpref{wxKeyEvent}{wxkeyevent}, \helpref{wxWindow::OnCharHook}{wxwindowoncharhook},\rtfsp
1658 %% \helpref{Event handling overview}{eventhandlingoverview}
1660 %% \membersection{wxWindow::OnCharHook}\label{wxwindowoncharhook}
1662 %% \func{void}{OnCharHook}{\param{wxKeyEvent\&}{ event}}
1664 %% This member is called to allow the window to intercept keyboard events
1665 %% before they are processed by child windows.
1667 %% \wxheading{Parameters}
1669 %% \docparam{event}{Object containing keypress information. See \helpref{wxKeyEvent}{wxkeyevent} for
1670 %% details about this class.}
1672 %% \wxheading{Remarks}
1674 %% This member function is called in response to a keypress, if the window is active. To intercept this event,
1675 %% use the EVT\_CHAR\_HOOK macro in an event table definition. If you do not process a particular
1676 %% keypress, call \helpref{wxEvent::Skip}{wxeventskip} to allow default processing.
1678 %% An example of using this function is in the implementation of escape-character processing for wxDialog,
1679 %% where pressing ESC dismisses the dialog by {\bf OnCharHook} 'forging' a cancel button press event.
1681 %% Note that the ASCII values do not have explicit key codes: they are passed as ASCII
1684 %% This function is only relevant to top-level windows (frames and dialogs), and under
1685 %% Windows only. Under GTK the normal EVT\_CHAR\_ event has the functionality, i.e.
1686 %% you can intercept it, and if you don't call \helpref{wxEvent::Skip}{wxeventskip}
1687 %% the window won't get the event.
1689 %% \wxheading{See also}
1691 %% \helpref{wxKeyEvent}{wxkeyevent},\rtfsp
1692 %% \helpref{wxWindow::OnCharHook}{wxwindowoncharhook},\rtfsp
1693 %% %% GD: OnXXX functions are not documented
1694 %% %%\helpref{wxApp::OnCharHook}{wxapponcharhook},\rtfsp
1695 %% \helpref{Event handling overview}{eventhandlingoverview}
1697 %% \membersection{wxWindow::OnCommand}\label{wxwindowoncommand}
1699 %% \func{virtual void}{OnCommand}{\param{wxEvtHandler\& }{object}, \param{wxCommandEvent\& }{event}}
1701 %% This virtual member function is called if the control does not handle the command event.
1703 %% \wxheading{Parameters}
1705 %% \docparam{object}{Object receiving the command event.}
1707 %% \docparam{event}{Command event}
1709 %% \wxheading{Remarks}
1711 %% This virtual function is provided mainly for backward compatibility. You can also intercept commands
1712 %% from child controls by using an event table, with identifiers or identifier ranges to identify
1713 %% the control(s) in question.
1715 %% \wxheading{See also}
1717 %% \helpref{wxCommandEvent}{wxcommandevent},\rtfsp
1718 %% \helpref{Event handling overview}{eventhandlingoverview}
1720 %% \membersection{wxWindow::OnClose}\label{wxwindowonclose}
1722 %% \func{virtual bool}{OnClose}{\void}
1724 %% Called when the user has tried to close a a frame
1725 %% or dialog box using the window manager (X) or system menu (Windows).
1727 %% {\bf Note:} This is an obsolete function.
1728 %% It is superseded by the \helpref{wxWindow::OnCloseWindow}{wxwindowonclosewindow} event
1731 %% \wxheading{Return value}
1733 %% If {\tt true} is returned by OnClose, the window will be deleted by the system, otherwise the
1734 %% attempt will be ignored. Do not delete the window from within this handler, although
1735 %% you may delete other windows.
1737 %% \wxheading{See also}
1739 %% \helpref{Window deletion overview}{windowdeletionoverview},\rtfsp
1740 %% \helpref{wxWindow::Close}{wxwindowclose},\rtfsp
1741 %% \helpref{wxWindow::OnCloseWindow}{wxwindowonclosewindow},\rtfsp
1742 %% \helpref{wxCloseEvent}{wxcloseevent}
1744 %% \membersection{wxWindow::OnKeyDown}\label{wxwindowonkeydown}
1746 %% \func{void}{OnKeyDown}{\param{wxKeyEvent\&}{ event}}
1748 %% Called when the user has pressed a key, before it is translated into an ASCII value using other
1749 %% modifier keys that might be pressed at the same time.
1751 %% \wxheading{Parameters}
1753 %% \docparam{event}{Object containing keypress information. See \helpref{wxKeyEvent}{wxkeyevent} for
1754 %% details about this class.}
1756 %% \wxheading{Remarks}
1758 %% This member function is called in response to a key down event. To intercept this event,
1759 %% use the EVT\_KEY\_DOWN macro in an event table definition. Your {\bf OnKeyDown} handler may call this
1760 %% default function to achieve default keypress functionality.
1762 %% Note that not all keypresses can be intercepted this way. If you wish to intercept special
1763 %% keys, such as shift, control, and function keys, then you will need to use \helpref{wxWindow::OnKeyDown}{wxwindowonkeydown} or
1764 %% \helpref{wxWindow::OnKeyUp}{wxwindowonkeyup}.
1766 %% Most, but not all, windows allow keypresses to be intercepted.
1768 %% {\bf Tip:} be sure to call {\tt event.Skip()} for events that you don't process in this function,
1769 %% otherwise menu shortcuts may cease to work under Windows.
1771 %% \wxheading{See also}
1773 %% \helpref{wxWindow::OnChar}{wxwindowonchar}, \helpref{wxWindow::OnKeyUp}{wxwindowonkeyup},\rtfsp
1774 %% \helpref{wxKeyEvent}{wxkeyevent}, \helpref{wxWindow::OnCharHook}{wxwindowoncharhook},\rtfsp
1775 %% \helpref{Event handling overview}{eventhandlingoverview}
1777 %% \membersection{wxWindow::OnKeyUp}\label{wxwindowonkeyup}
1779 %% \func{void}{OnKeyUp}{\param{wxKeyEvent\&}{ event}}
1781 %% Called when the user has released a key.
1783 %% \wxheading{Parameters}
1785 %% \docparam{event}{Object containing keypress information. See \helpref{wxKeyEvent}{wxkeyevent} for
1786 %% details about this class.}
1788 %% \wxheading{Remarks}
1790 %% This member function is called in response to a key up event. To intercept this event,
1791 %% use the EVT\_KEY\_UP macro in an event table definition. Your {\bf OnKeyUp} handler may call this
1792 %% default function to achieve default keypress functionality.
1794 %% Note that not all keypresses can be intercepted this way. If you wish to intercept special
1795 %% keys, such as shift, control, and function keys, then you will need to use \helpref{wxWindow::OnKeyDown}{wxwindowonkeydown} or
1796 %% \helpref{wxWindow::OnKeyUp}{wxwindowonkeyup}.
1798 %% Most, but not all, windows allow key up events to be intercepted.
1800 %% \wxheading{See also}
1802 %% \helpref{wxWindow::OnChar}{wxwindowonchar}, \helpref{wxWindow::OnKeyDown}{wxwindowonkeydown},\rtfsp
1803 %% \helpref{wxKeyEvent}{wxkeyevent}, \helpref{wxWindow::OnCharHook}{wxwindowoncharhook},\rtfsp
1804 %% \helpref{Event handling overview}{eventhandlingoverview}
1806 %% \membersection{wxWindow::OnInitDialog}\label{wxwindowoninitdialog}
1808 %% \func{void}{OnInitDialog}{\param{wxInitDialogEvent\&}{ event}}
1810 %% Default handler for the wxEVT\_INIT\_DIALOG event. Calls \helpref{wxWindow::TransferDataToWindow}{wxwindowtransferdatatowindow}.
1812 %% \wxheading{Parameters}
1814 %% \docparam{event}{Dialog initialisation event.}
1816 %% \wxheading{Remarks}
1818 %% Gives the window the default behaviour of transferring data to child controls via
1819 %% the validator that each control has.
1821 %% \wxheading{See also}
1823 %% \helpref{wxValidator}{wxvalidator}, \helpref{wxWindow::TransferDataToWindow}{wxwindowtransferdatatowindow}
1825 %% \membersection{wxWindow::OnMenuCommand}\label{wxwindowonmenucommand}
1827 %% \func{void}{OnMenuCommand}{\param{wxCommandEvent\& }{event}}
1829 %% Called when a menu command is received from a menu bar.
1831 %% \wxheading{Parameters}
1833 %% \docparam{event}{The menu command event. For more information, see \helpref{wxCommandEvent}{wxcommandevent}.}
1835 %% \wxheading{Remarks}
1837 %% A function with this name doesn't actually exist; you can choose any member function to receive
1838 %% menu command events, using the EVT\_COMMAND macro for individual commands or EVT\_COMMAND\_RANGE for
1839 %% a range of commands.
1841 %% \wxheading{See also}
1843 %% \helpref{wxCommandEvent}{wxcommandevent},\rtfsp
1844 %% \helpref{wxWindow::OnMenuHighlight}{wxwindowonmenuhighlight},\rtfsp
1845 %% \helpref{Event handling overview}{eventhandlingoverview}
1847 %% \membersection{wxWindow::OnMenuHighlight}\label{wxwindowonmenuhighlight}
1849 %% \func{void}{OnMenuHighlight}{\param{wxMenuEvent\& }{event}}
1851 %% Called when a menu select is received from a menu bar: that is, the
1852 %% mouse cursor is over a menu item, but the left mouse button has not been
1855 %% \wxheading{Parameters}
1857 %% \docparam{event}{The menu highlight event. For more information, see \helpref{wxMenuEvent}{wxmenuevent}.}
1859 %% \wxheading{Remarks}
1861 %% You can choose any member function to receive
1862 %% menu select events, using the EVT\_MENU\_HIGHLIGHT macro for individual menu items or EVT\_MENU\_HIGHLIGHT\_ALL macro
1863 %% for all menu items.
1865 %% The default implementation for \helpref{wxFrame::OnMenuHighlight}{wxframeonmenuhighlight} displays help
1866 %% text in the first field of the status bar.
1868 %% This function was known as {\bf OnMenuSelect} in earlier versions of wxWidgets, but this was confusing
1869 %% since a selection is normally a left-click action.
1871 %% \wxheading{See also}
1873 %% \helpref{wxMenuEvent}{wxmenuevent},\rtfsp
1874 %% \helpref{wxWindow::OnMenuCommand}{wxwindowonmenucommand},\rtfsp
1875 %% \helpref{Event handling overview}{eventhandlingoverview}
1878 %% \membersection{wxWindow::OnMouseEvent}\label{wxwindowonmouseevent}
1880 %% \func{void}{OnMouseEvent}{\param{wxMouseEvent\&}{ event}}
1882 %% Called when the user has initiated an event with the
1885 %% \wxheading{Parameters}
1887 %% \docparam{event}{The mouse event. See \helpref{wxMouseEvent}{wxmouseevent} for
1890 %% \wxheading{Remarks}
1892 %% Most, but not all, windows respond to this event.
1894 %% To intercept this event, use the EVT\_MOUSE\_EVENTS macro in an event table definition, or individual
1895 %% mouse event macros such as EVT\_LEFT\_DOWN.
1897 %% \wxheading{See also}
1899 %% \helpref{wxMouseEvent}{wxmouseevent},\rtfsp
1900 %% \helpref{Event handling overview}{eventhandlingoverview}
1902 %% \membersection{wxWindow::OnMove}\label{wxwindowonmove}
1904 %% \func{void}{OnMove}{\param{wxMoveEvent\& }{event}}
1906 %% Called when a window is moved.
1908 %% \wxheading{Parameters}
1910 %% \docparam{event}{The move event. For more information, see \helpref{wxMoveEvent}{wxmoveevent}.}
1912 %% \wxheading{Remarks}
1914 %% Use the EVT\_MOVE macro to intercept move events.
1916 %% \wxheading{Remarks}
1918 %% Not currently implemented.
1920 %% \wxheading{See also}
1922 %% \helpref{wxMoveEvent}{wxmoveevent},\rtfsp
1923 %% \helpref{wxFrame::OnSize}{wxframeonsize},\rtfsp
1924 %% \helpref{Event handling overview}{eventhandlingoverview}
1926 %% \membersection{wxWindow::OnPaint}\label{wxwindowonpaint}
1928 %% \func{void}{OnPaint}{\param{wxPaintEvent\& }{event}}
1930 %% Sent to the event handler when the window must be refreshed.
1932 %% \wxheading{Parameters}
1934 %% \docparam{event}{Paint event. For more information, see \helpref{wxPaintEvent}{wxpaintevent}.}
1936 %% \wxheading{Remarks}
1938 %% Use the EVT\_PAINT macro in an event table definition to intercept paint events.
1940 %% Note that In a paint event handler, the application must {\it always} create a \helpref{wxPaintDC}{wxpaintdc} object,
1941 %% even if you do not use it. Otherwise, under MS Windows, refreshing for this and other windows will go wrong.
1947 %% void MyWindow::OnPaint(wxPaintEvent\& event)
1949 %% wxPaintDC dc(this);
1951 %% DrawMyDocument(dc);
1956 %% You can optimize painting by retrieving the rectangles
1957 %% that have been damaged and only repainting these. The rectangles are in
1958 %% terms of the client area, and are unscrolled, so you will need to do
1959 %% some calculations using the current view position to obtain logical,
1962 %% Here is an example of using the \helpref{wxRegionIterator}{wxregioniterator} class:
1966 %% // Called when window needs to be repainted.
1967 %% void MyWindow::OnPaint(wxPaintEvent\& event)
1969 %% wxPaintDC dc(this);
1971 %% // Find Out where the window is scrolled to
1972 %% int vbX,vbY; // Top left corner of client
1973 %% GetViewStart(&vbX,&vbY);
1975 %% int vX,vY,vW,vH; // Dimensions of client area in pixels
1976 %% wxRegionIterator upd(GetUpdateRegion()); // get the update rect list
1985 %% // Alternatively we can do this:
1987 %% // upd.GetRect(&rect);
1989 %% // Repaint this rectangle
1998 %% \wxheading{See also}
2000 %% \helpref{wxPaintEvent}{wxpaintevent},\rtfsp
2001 %% \helpref{wxPaintDC}{wxpaintdc},\rtfsp
2002 %% \helpref{Event handling overview}{eventhandlingoverview}
2004 %% \membersection{wxWindow::OnScroll}\label{wxwindowonscroll}
2006 %% \func{void}{OnScroll}{\param{wxScrollWinEvent\& }{event}}
2008 %% Called when a scroll window event is received from one of the window's built-in scrollbars.
2010 %% \wxheading{Parameters}
2012 %% \docparam{event}{Command event. Retrieve the new scroll position by
2013 %% calling \helpref{wxScrollEvent::GetPosition}{wxscrolleventgetposition}, and the
2014 %% scrollbar orientation by calling \helpref{wxScrollEvent::GetOrientation}{wxscrolleventgetorientation}.}
2016 %% \wxheading{Remarks}
2018 %% Note that it is not possible to distinguish between horizontal and vertical scrollbars
2019 %% until the function is executing (you can't have one function for vertical, another
2020 %% for horizontal events).
2022 %% \wxheading{See also}
2024 %% \helpref{wxScrollWinEvent}{wxscrollwinevent},\rtfsp
2025 %% \helpref{Event handling overview}{eventhandlingoverview}
2027 %% \membersection{wxWindow::OnSetFocus}\label{wxwindowonsetfocus}
2029 %% \func{void}{OnSetFocus}{\param{wxFocusEvent\& }{event}}
2031 %% Called when a window's focus is being set.
2033 %% \wxheading{Parameters}
2035 %% \docparam{event}{The focus event. For more information, see \helpref{wxFocusEvent}{wxfocusevent}.}
2037 %% \wxheading{Remarks}
2039 %% To intercept this event, use the macro EVT\_SET\_FOCUS in an event table definition.
2041 %% Most, but not all, windows respond to this event.
2043 %% \wxheading{See also}
2045 %% \helpref{wxFocusEvent}{wxfocusevent}, \helpref{wxWindow::OnKillFocus}{wxwindowonkillfocus},\rtfsp
2046 %% \helpref{Event handling overview}{eventhandlingoverview}
2048 %% \membersection{wxWindow::OnSize}\label{wxwindowonsize}
2050 %% \func{void}{OnSize}{\param{wxSizeEvent\& }{event}}
2052 %% Called when the window has been resized. This is not a virtual function; you should
2053 %% provide your own non-virtual OnSize function and direct size events to it using EVT\_SIZE
2054 %% in an event table definition.
2056 %% \wxheading{Parameters}
2058 %% \docparam{event}{Size event. For more information, see \helpref{wxSizeEvent}{wxsizeevent}.}
2060 %% \wxheading{Remarks}
2062 %% You may wish to use this for frames to resize their child windows as appropriate.
2064 %% Note that the size passed is of
2065 %% the whole window: call \helpref{wxWindow::GetClientSize}{wxwindowgetclientsize} for the area which may be
2066 %% used by the application.
2068 %% When a window is resized, usually only a small part of the window is damaged and you
2069 %% may only need to repaint that area. However, if your drawing depends on the size of the window,
2070 %% you may need to clear the DC explicitly and repaint the whole window. In which case, you
2071 %% may need to call \helpref{wxWindow::Refresh}{wxwindowrefresh} to invalidate the entire window.
2073 %% \wxheading{See also}
2075 %% \helpref{wxSizeEvent}{wxsizeevent},\rtfsp
2076 %% \helpref{Event handling overview}{eventhandlingoverview}
2078 %% \membersection{wxWindow::OnSysColourChanged}\label{wxwindowonsyscolourchanged}
2080 %% \func{void}{OnSysColourChanged}{\param{wxOnSysColourChangedEvent\& }{event}}
2082 %% Called when the user has changed the system colours. Windows only.
2084 %% \wxheading{Parameters}
2086 %% \docparam{event}{System colour change event. For more information, see \helpref{wxSysColourChangedEvent}{wxsyscolourchangedevent}.}
2088 %% \wxheading{See also}
2090 %% \helpref{wxSysColourChangedEvent}{wxsyscolourchangedevent},\rtfsp
2091 %% \helpref{Event handling overview}{eventhandlingoverview}
2094 \membersection{wxWindow::OnInternalIdle
}\label{wxwindowoninternalidle
}
2096 \func{virtual void
}{OnInternalIdle
}{\void}
2098 This virtual function is normally only used internally, but
2099 sometimes an application may need it to implement functionality
2100 that should not be disabled by an application defining an OnIdle
2101 handler in a derived class.
2103 This function may be used to do delayed painting, for example,
2104 and most implementations call
\helpref{wxWindow::UpdateWindowUI
}{wxwindowupdatewindowui
}
2105 in order to send update events to the window in idle time.
2108 \membersection{wxWindow::PageDown
}\label{wxwindowpagedown
}
2110 This is just a wrapper for
\helpref{ScrollPages()
}{wxwindowscrollpages
}$(
1)$.
2113 \membersection{wxWindow::PageUp
}\label{wxwindowpageup
}
2115 This is just a wrapper for
\helpref{ScrollPages()
}{wxwindowscrollpages
}$(-
1)$.
2118 \membersection{wxWindow::PopEventHandler
}\label{wxwindowpopeventhandler
}
2120 \constfunc{wxEvtHandler*
}{PopEventHandler
}{\param{bool
}{deleteHandler =
{\tt false
}}}
2122 Removes and returns the top-most event handler on the event handler stack.
2124 \wxheading{Parameters
}
2126 \docparam{deleteHandler
}{If this is
{\tt true
}, the handler will be deleted after it is removed. The
2127 default value is
{\tt false
}.
}
2129 \wxheading{See also
}
2131 \helpref{wxWindow::SetEventHandler
}{wxwindowseteventhandler
},
\rtfsp
2132 \helpref{wxWindow::GetEventHandler
}{wxwindowgeteventhandler
},
\rtfsp
2133 \helpref{wxWindow::PushEventHandler
}{wxwindowpusheventhandler
},
\rtfsp
2134 \helpref{wxEvtHandler::ProcessEvent
}{wxevthandlerprocessevent
},
\rtfsp
2135 \helpref{wxEvtHandler
}{wxevthandler
}\rtfsp
2138 \membersection{wxWindow::PopupMenu
}\label{wxwindowpopupmenu
}
2140 \func{bool
}{PopupMenu
}{\param{wxMenu*
}{menu
},
\param{const wxPoint\&
}{pos = wxDefaultPosition
}}
2142 \func{bool
}{PopupMenu
}{\param{wxMenu*
}{menu
},
\param{int
}{x
},
\param{int
}{y
}}
2144 Pops up the given menu at the specified coordinates, relative to this
2145 window, and returns control when the user has dismissed the menu. If a
2146 menu item is selected, the corresponding menu event is generated and will be
2147 processed as usually. If the coordinates are not specified, current mouse
2148 cursor position is used.
2150 \wxheading{Parameters
}
2152 \docparam{menu
}{Menu to pop up.
}
2154 \docparam{pos
}{The position where the menu will appear.
}
2156 \docparam{x
}{Required x position for the menu to appear.
}
2158 \docparam{y
}{Required y position for the menu to appear.
}
2160 \wxheading{See also
}
2162 \helpref{wxMenu
}{wxmenu
}
2166 Just before the menu is popped up,
\helpref{wxMenu::UpdateUI
}{wxmenuupdateui
}
2167 is called to ensure that the menu items are in the correct state. The menu does
2168 not get deleted by the window.
2170 It is recommended to not explicitly specify coordinates when calling PopupMenu
2171 in response to mouse click, because some of the ports (namely, wxGTK) can do
2172 a better job of positioning the menu in that case.
2174 \pythonnote{In place of a single overloaded method name, wxPython
2175 implements the following methods:
\par
2176 \indented{2cm
}{\begin{twocollist
}
2177 \twocolitem{{\bf PopupMenu(menu, point)
}}{Specifies position with a wxPoint
}
2178 \twocolitem{{\bf PopupMenuXY(menu, x, y)
}}{Specifies position with two integers (x, y)
}
2183 \membersection{wxWindow::PushEventHandler
}\label{wxwindowpusheventhandler
}
2185 \func{void
}{PushEventHandler
}{\param{wxEvtHandler*
}{handler
}}
2187 Pushes this event handler onto the event stack for the window.
2189 \wxheading{Parameters
}
2191 \docparam{handler
}{Specifies the handler to be pushed.
}
2195 An event handler is an object that is capable of processing the events
2196 sent to a window. By default, the window is its own event handler, but
2197 an application may wish to substitute another, for example to allow
2198 central implementation of event-handling for a variety of different
2201 \helpref{wxWindow::PushEventHandler
}{wxwindowpusheventhandler
} allows
2202 an application to set up a chain of event handlers, where an event not handled by one event handler is
2203 handed to the next one in the chain. Use
\helpref{wxWindow::PopEventHandler
}{wxwindowpopeventhandler
} to
2204 remove the event handler.
2206 \wxheading{See also
}
2208 \helpref{wxWindow::SetEventHandler
}{wxwindowseteventhandler
},
\rtfsp
2209 \helpref{wxWindow::GetEventHandler
}{wxwindowgeteventhandler
},
\rtfsp
2210 \helpref{wxWindow::PopEventHandler
}{wxwindowpusheventhandler
},
\rtfsp
2211 \helpref{wxEvtHandler::ProcessEvent
}{wxevthandlerprocessevent
},
\rtfsp
2212 \helpref{wxEvtHandler
}{wxevthandler
}
2215 \membersection{wxWindow::Raise
}\label{wxwindowraise
}
2217 \func{void
}{Raise
}{\void}
2219 Raises the window to the top of the window hierarchy if it is a managed window (dialog
2223 \membersection{wxWindow::Refresh
}\label{wxwindowrefresh
}
2225 \func{virtual void
}{Refresh
}{\param{bool
}{ eraseBackground =
{\tt true
}},
\param{const wxRect*
}{rect
2228 Causes an event to be generated to repaint the
2231 \wxheading{Parameters
}
2233 \docparam{eraseBackground
}{If
{\tt true
}, the background will be
2236 \docparam{rect
}{If non-NULL, only the given rectangle will
2237 be treated as damaged.
}
2239 \wxheading{See also
}
2241 \helpref{wxWindow::RefreshRect
}{wxwindowrefreshrect
}
2244 \membersection{wxWindow::RefreshRect
}\label{wxwindowrefreshrect
}
2246 \func{void
}{RefreshRect
}{\param{const wxRect\&
}{rect
},
\param{bool
}{eraseBackground =
\true}}
2248 Redraws the contents of the given rectangle: only the area inside it will be
2251 This is the same as
\helpref{Refresh
}{wxwindowrefresh
} but has a nicer syntax
2252 as it can be called with a temporary wxRect object as argument like this
2253 \texttt{RefreshRect(wxRect(x, y, w, h))
}.
2256 \membersection{wxWindow::RegisterHotKey
}\label{wxwindowregisterhotkey
}
2258 \func{bool
}{RegisterHotKey
}{\param{int
}{ hotkeyId
},
\param{int
}{ modifiers
},
\param{int
}{ virtualKeyCode
}}
2260 Registers a system wide hotkey. Every time the user presses the hotkey registered here, this window
2261 will receive a hotkey event. It will receive the event even if the application is in the background
2262 and does not have the input focus because the user is working with some other application.
2264 \wxheading{Parameters
}
2266 \docparam{hotkeyId
}{Numeric identifier of the hotkey. For applications this must be between
0 and
0xBFFF. If
2267 this function is called from a shared DLL, it must be a system wide unique identifier between
0xC000 and
0xFFFF.
2268 This is a MSW specific detail.
}
2270 \docparam{modifiers
}{A bitwise combination of
{\tt wxMOD
\_SHIFT},
{\tt wxMOD
\_CONTROL},
{\tt wxMOD
\_ALT}
2271 or
{\tt wxMOD
\_WIN} specifying the modifier keys that have to be pressed along with the key.
}
2273 \docparam{virtualKeyCode
}{The virtual key code of the hotkey.
}
2275 \wxheading{Return value
}
2277 {\tt true
} if the hotkey was registered successfully.
{\tt false
} if some other application already registered a
2278 hotkey with this modifier/virtualKeyCode combination.
2282 Use EVT
\_HOTKEY(hotkeyId, fnc) in the event table to capture the event.
2283 This function is currently only implemented under MSW.
2285 \wxheading{See also
}
2287 \helpref{wxWindow::UnregisterHotKey
}{wxwindowunregisterhotkey
}
2290 \membersection{wxWindow::ReleaseMouse
}\label{wxwindowreleasemouse
}
2292 \func{virtual void
}{ReleaseMouse
}{\void}
2294 Releases mouse input captured with
\helpref{wxWindow::CaptureMouse
}{wxwindowcapturemouse
}.
2296 \wxheading{See also
}
2298 \helpref{wxWindow::CaptureMouse
}{wxwindowcapturemouse
},
2299 \helpref{wxWindow::HasCapture
}{wxwindowhascapture
},
2300 \helpref{wxWindow::ReleaseMouse
}{wxwindowreleasemouse
},
2301 \helpref{wxMouseCaptureChangedEvent
}{wxmousecapturechangedevent
}
2304 \membersection{wxWindow::RemoveChild
}\label{wxwindowremovechild
}
2306 \func{virtual void
}{RemoveChild
}{\param{wxWindow*
}{child
}}
2308 Removes a child window. This is called automatically by window deletion
2309 functions so should not be required by the application programmer.
2311 Notice that this function is mostly internal to wxWidgets and shouldn't be
2312 called by the user code.
2314 \wxheading{Parameters
}
2316 \docparam{child
}{Child window to remove.
}
2319 \membersection{wxWindow::RemoveEventHandler
}\label{wxwindowremoveeventhandler
}
2321 \func{bool
}{RemoveEventHandler
}{\param{wxEvtHandler *
}{handler
}}
2323 Find the given
{\it handler
} in the windows event handler chain and remove (but
2324 not delete) it from it.
2326 \wxheading{Parameters
}
2328 \docparam{handler
}{The event handler to remove, must be non
{\tt NULL
} and
2329 must be present in this windows event handlers chain
}
2331 \wxheading{Return value
}
2333 Returns
{\tt true
} if it was found and
{\tt false
} otherwise (this also results
2334 in an assert failure so this function should only be called when the
2335 handler is supposed to be there).
2337 \wxheading{See also
}
2339 \helpref{PushEventHandler
}{wxwindowpusheventhandler
},
\rtfsp
2340 \helpref{PopEventHandler
}{wxwindowpopeventhandler
}
2343 \membersection{wxWindow::Reparent
}\label{wxwindowreparent
}
2345 \func{virtual bool
}{Reparent
}{\param{wxWindow*
}{newParent
}}
2347 Reparents the window, i.e the window will be removed from its
2348 current parent window (e.g. a non-standard toolbar in a wxFrame)
2349 and then re-inserted into another. Available on Windows and GTK.
2351 \wxheading{Parameters
}
2353 \docparam{newParent
}{New parent.
}
2356 \membersection{wxWindow::ScreenToClient
}\label{wxwindowscreentoclient
}
2358 \constfunc{virtual void
}{ScreenToClient
}{\param{int*
}{x
},
\param{int*
}{y
}}
2360 \constfunc{virtual wxPoint
}{ScreenToClient
}{\param{const wxPoint\&
}{pt
}}
2362 Converts from screen to client window coordinates.
2364 \wxheading{Parameters
}
2366 \docparam{x
}{Stores the screen x coordinate and receives the client x coordinate.
}
2368 \docparam{y
}{Stores the screen x coordinate and receives the client x coordinate.
}
2370 \docparam{pt
}{The screen position for the second form of the function.
}
2372 \pythonnote{In place of a single overloaded method name, wxPython
2373 implements the following methods:
\par
2374 \indented{2cm
}{\begin{twocollist
}
2375 \twocolitem{{\bf ScreenToClient(point)
}}{Accepts and returns a wxPoint
}
2376 \twocolitem{{\bf ScreenToClientXY(x, y)
}}{Returns a
2-tuple, (x, y)
}
2381 \membersection{wxWindow::ScrollLines
}\label{wxwindowscrolllines
}
2383 \func{virtual bool
}{ScrollLines
}{\param{int
}{lines
}}
2385 Scrolls the window by the given number of lines down (if
{\it lines
} is
2388 \wxheading{Return value
}
2390 Returns
{\tt true
} if the window was scrolled,
{\tt false
} if it was already
2391 on top/bottom and nothing was done.
2395 This function is currently only implemented under MSW and wxTextCtrl under
2396 wxGTK (it also works for wxScrolledWindow derived classes under all
2399 \wxheading{See also
}
2401 \helpref{ScrollPages
}{wxwindowscrollpages
}
2404 \membersection{wxWindow::ScrollPages
}\label{wxwindowscrollpages
}
2406 \func{virtual bool
}{ScrollPages
}{\param{int
}{pages
}}
2408 Scrolls the window by the given number of pages down (if
{\it pages
} is
2411 \wxheading{Return value
}
2413 Returns
{\tt true
} if the window was scrolled,
{\tt false
} if it was already
2414 on top/bottom and nothing was done.
2418 This function is currently only implemented under MSW and wxTextCtrl under
2419 wxGTK (it also works for wxScrolledWindow derived classes under all
2422 \wxheading{See also
}
2424 \helpref{ScrollLines
}{wxwindowscrolllines
}
2427 \membersection{wxWindow::ScrollWindow
}\label{wxwindowscrollwindow
}
2429 \func{virtual void
}{ScrollWindow
}{\param{int
}{dx
},
\param{int
}{dy
},
\param{const wxRect*
}{ rect = NULL
}}
2431 Physically scrolls the pixels in the window and move child windows accordingly.
2433 \wxheading{Parameters
}
2435 \docparam{dx
}{Amount to scroll horizontally.
}
2437 \docparam{dy
}{Amount to scroll vertically.
}
2439 \docparam{rect
}{Rectangle to invalidate. If this is NULL, the whole window is invalidated. If you
2440 pass a rectangle corresponding to the area of the window exposed by the scroll, your painting handler
2441 can optimize painting by checking for the invalidated region. This parameter is ignored under GTK.
}
2445 Use this function to optimise your scrolling implementations, to minimise the area that must be
2446 redrawn. Note that it is rarely required to call this function from a user program.
2449 \membersection{wxWindow::SetAcceleratorTable
}\label{wxwindowsetacceleratortable
}
2451 \func{virtual void
}{SetAcceleratorTable
}{\param{const wxAcceleratorTable\&
}{ accel
}}
2453 Sets the accelerator table for this window. See
\helpref{wxAcceleratorTable
}{wxacceleratortable
}.
2456 \membersection{wxWindow::SetAccessible
}\label{wxwindowsetaccessible
}
2458 \func{void
}{SetAccessible
}{\param{wxAccessible*
}{ accessible
}}
2460 Sets the accessible for this window. Any existing accessible for this window
2461 will be deleted first, if not identical to
{\it accessible
}.
2463 See also
\helpref{wxAccessible
}{wxaccessible
}.
2466 \membersection{wxWindow::SetAutoLayout
}\label{wxwindowsetautolayout
}
2468 \func{void
}{SetAutoLayout
}{\param{bool
}{ autoLayout
}}
2470 Determines whether the
\helpref{wxWindow::Layout
}{wxwindowlayout
} function will
2471 be called automatically when the window is resized. It is called implicitly by
2472 \helpref{wxWindow::SetSizer
}{wxwindowsetsizer
} but if you use
2473 \helpref{wxWindow::SetConstraints
}{wxwindowsetconstraints
} you should call it
2474 manually or otherwise the window layout won't be correctly updated when its
2477 \wxheading{Parameters
}
2479 \docparam{autoLayout
}{Set this to
{\tt true
} if you wish the Layout function to be called
2480 from within wxWindow::OnSize functions.
}
2482 \wxheading{See also
}
2484 \helpref{wxWindow::SetConstraints
}{wxwindowsetconstraints
}
2487 \membersection{wxWindow::SetBackgroundColour
}\label{wxwindowsetbackgroundcolour
}
2489 \func{virtual bool
}{SetBackgroundColour
}{\param{const wxColour\&
}{colour
}}
2491 Sets the background colour of the window.
2493 Please see
\helpref{InheritAttributes
}{wxwindowinheritattributes
} for
2494 explanation of the difference between this method and
2495 \helpref{SetOwnBackgroundColour
}{wxwindowsetownbackgroundcolour
}.
2497 \wxheading{Parameters
}
2499 \docparam{colour
}{The colour to be used as the background colour, pass
2500 {\tt wxNullColour
} to reset to the default colour.
}
2504 The background colour is usually painted by the default
\rtfsp
2505 \helpref{wxEraseEvent
}{wxeraseevent
} event handler function
2506 under Windows and automatically under GTK.
2508 Note that setting the background colour does not cause an immediate refresh, so you
2509 may wish to call
\helpref{wxWindow::ClearBackground
}{wxwindowclearbackground
} or
\helpref{wxWindow::Refresh
}{wxwindowrefresh
} after
2510 calling this function.
2512 Using this function will disable attempts to use themes for this
2513 window, if the system supports them. Use with care since usually the
2514 themes represent the appearance chosen by the user to be used for all
2515 applications on the system.
2518 \wxheading{See also
}
2520 \helpref{wxWindow::GetBackgroundColour
}{wxwindowgetbackgroundcolour
},
\rtfsp
2521 \helpref{wxWindow::SetForegroundColour
}{wxwindowsetforegroundcolour
},
\rtfsp
2522 \helpref{wxWindow::GetForegroundColour
}{wxwindowgetforegroundcolour
},
\rtfsp
2523 \helpref{wxWindow::ClearBackground
}{wxwindowclearbackground
},
\rtfsp
2524 \helpref{wxWindow::Refresh
}{wxwindowrefresh
},
\rtfsp
2525 \helpref{wxEraseEvent
}{wxeraseevent
}
2527 \membersection{wxWindow::SetBackgroundStyle
}\label{wxwindowsetbackgroundstyle
}
2529 \func{virtual void
}{SetBackgroundStyle
}{\param{wxBackgroundStyle
}{ style
}}
2531 Sets the background style of the window. The background style indicates
2532 whether background colour should be determined by the system (wxBG
\_STYLE\_SYSTEM),
2533 be set to a specific colour (wxBG
\_STYLE\_COLOUR), or should be left to the
2534 application to implement (wxBG
\_STYLE\_CUSTOM).
2536 On GTK+, use of wxBG
\_STYLE\_CUSTOM allows the flicker-free drawing of a custom
2537 background, such as a tiled bitmap. Currently the style has no effect on other platforms.
2539 \wxheading{See also
}
2541 \helpref{wxWindow::SetBackgroundColour
}{wxwindowsetbackgroundcolour
},
\rtfsp
2542 \helpref{wxWindow::GetForegroundColour
}{wxwindowgetforegroundcolour
},
\rtfsp
2543 \helpref{wxWindow::GetBackgroundStyle
}{wxwindowgetbackgroundstyle
}
2546 \membersection{wxWindow::SetBestFittingSize
}\label{wxwindowsetbestfittingsize
}
2548 \func{void
}{SetBestFittingSize
}{\param{const wxSize\&
}{size = wxDefaultSize
}}
2550 A
{\it smart
} SetSize that will fill in default size components with the
2551 window's
{\it best
} size values. Also sets the window's minsize to
2552 the value passed in for use with sizers. This means that if a full or
2553 partial size is passed to this function then the sizers will use that
2554 size instead of the results of GetBestSize to determine the minimum
2555 needs of the window for layout.
2557 \wxheading{See also
}
2559 \helpref{wxWindow::SetSize
}{wxwindowsetsize
},
\rtfsp
2560 \helpref{wxWindow::GetBestSize
}{wxwindowgetbestsize
},
\rtfsp
2561 \helpref{wxWindow::GetBestFittingSize
}{wxwindowgetbestfittingsize
},
\rtfsp
2562 \helpref{wxWindow::SetSizeHints
}{wxwindowsetsizehints
}
2565 \membersection{wxWindow::SetCaret
}\label{wxwindowsetcaret
}
2567 \constfunc{void
}{SetCaret
}{\param{wxCaret *
}{caret
}}
2569 Sets the
\helpref{caret
}{wxcaret
} associated with the window.
2572 \membersection{wxWindow::SetClientSize
}\label{wxwindowsetclientsize
}
2574 \func{virtual void
}{SetClientSize
}{\param{int
}{ width
},
\param{int
}{ height
}}
2576 \func{virtual void
}{SetClientSize
}{\param{const wxSize\&
}{ size
}}
2578 This sets the size of the window client area in pixels. Using this function to size a window
2579 tends to be more device-independent than
\helpref{wxWindow::SetSize
}{wxwindowsetsize
}, since the application need not
2580 worry about what dimensions the border or title bar have when trying to fit the window
2581 around panel items, for example.
2583 \wxheading{Parameters
}
2585 \docparam{width
}{The required client area width.
}
2587 \docparam{height
}{The required client area height.
}
2589 \docparam{size
}{The required client size.
}
2591 \pythonnote{In place of a single overloaded method name, wxPython
2592 implements the following methods:
\par
2593 \indented{2cm
}{\begin{twocollist
}
2594 \twocolitem{{\bf SetClientSize(size)
}}{Accepts a wxSize
}
2595 \twocolitem{{\bf SetClientSizeWH(width, height)
}}{}
2600 \membersection{wxWindow::SetContainingSizer
}\label{wxwindowsetcontainingsizer
}
2602 \func{void
}{SetContainingSizer
}{\param{wxSizer*
}{sizer
}}
2604 This normally does not need to be called by user code. It is called
2605 when a window is added to a sizer, and is used so the window can
2606 remove itself from the sizer when it is destroyed.
2609 \membersection{wxWindow::SetCursor
}\label{wxwindowsetcursor
}
2611 \func{virtual void
}{SetCursor
}{\param{const wxCursor\&
}{cursor
}}
2613 % VZ: the docs are correct, if the code doesn't behave like this, it must be
2615 Sets the window's cursor. Notice that the window cursor also sets it for the
2616 children of the window implicitly.
2618 The
{\it cursor
} may be
{\tt wxNullCursor
} in which case the window cursor will
2619 be reset back to default.
2621 \wxheading{Parameters
}
2623 \docparam{cursor
}{Specifies the cursor that the window should normally display.
}
2625 \wxheading{See also
}
2627 \helpref{::wxSetCursor
}{wxsetcursor
},
\helpref{wxCursor
}{wxcursor
}
2630 \membersection{wxWindow::SetConstraints
}\label{wxwindowsetconstraints
}
2632 \func{void
}{SetConstraints
}{\param{wxLayoutConstraints*
}{constraints
}}
2634 Sets the window to have the given layout constraints. The window
2635 will then own the object, and will take care of its deletion.
2636 If an existing layout constraints object is already owned by the
2637 window, it will be deleted.
2639 \wxheading{Parameters
}
2641 \docparam{constraints
}{The constraints to set. Pass NULL to disassociate and delete the window's
2646 You must call
\helpref{wxWindow::SetAutoLayout
}{wxwindowsetautolayout
} to tell a window to use
2647 the constraints automatically in OnSize; otherwise, you must override OnSize and call Layout()
2648 explicitly. When setting both a wxLayoutConstraints and a
\helpref{wxSizer
}{wxsizer
}, only the
2649 sizer will have effect.
2651 \membersection{wxWindow::SetInitialBestSize
}\label{wxwindowsetinitialbestsize
}
2653 \func{virtual void
}{SetInitialBestSize
}{\param{const wxSize\&
}{size
}}
2655 Sets the initial window size if none is given (i.e. at least one of the
2656 components of the size passed to ctor/Create() is wxDefaultCoord).
2658 \membersection{wxWindow::SetMaxSize
}\label{wxwindowsetmaxsize
}
2660 \func{void
}{SetMaxSize
}{\param{const wxSize\&
}{size
}}
2662 Sets the maximum size of the window, to indicate to the sizer layout mechanism
2663 that this is the maximum possible size.
2665 \membersection{wxWindow::SetMinSize
}\label{wxwindowsetminsize
}
2667 \func{void
}{SetMinSize
}{\param{const wxSize\&
}{size
}}
2669 Sets the minimum size of the window, to indicate to the sizer layout mechanism
2670 that this is the minimum required size. You may need to call this
2671 if you change the window size after construction and before adding
2672 to its parent sizer.
2674 \membersection{wxWindow::SetOwnBackgroundColour
}\label{wxwindowsetownbackgroundcolour
}
2676 \func{void
}{SetOwnBackgroundColour
}{\param{const wxColour\&
}{colour
}}
2678 Sets the background colour of the window but prevents it from being inherited
2679 by the children of this window.
2681 \wxheading{See also
}
2683 \helpref{SetBackgroundColour
}{wxwindowsetbackgroundcolour
},
\rtfsp
2684 \helpref{InheritAttributes
}{wxwindowinheritattributes
}
2687 \membersection{wxWindow::SetOwnFont
}\label{wxwindowsetownfont
}
2689 \func{void
}{SetOwnFont
}{\param{const wxFont\&
}{font
}}
2691 Sets the font of the window but prevents it from being inherited by the
2692 children of this window.
2694 \wxheading{See also
}
2696 \helpref{SetFont
}{wxwindowsetfont
},
\rtfsp
2697 \helpref{InheritAttributes
}{wxwindowinheritattributes
}
2700 \membersection{wxWindow::SetOwnForegroundColour
}\label{wxwindowsetownforegroundcolour
}
2702 \func{void
}{SetOwnForegroundColour
}{\param{const wxColour\&
}{colour
}}
2704 Sets the foreground colour of the window but prevents it from being inherited
2705 by the children of this window.
2707 \wxheading{See also
}
2709 \helpref{SetForegroundColour
}{wxwindowsetforegroundcolour
},
\rtfsp
2710 \helpref{InheritAttributes
}{wxwindowinheritattributes
}
2713 \membersection{wxWindow::SetDropTarget
}\label{wxwindowsetdroptarget
}
2715 \func{void
}{SetDropTarget
}{\param{wxDropTarget*
}{ target
}}
2717 Associates a drop target with this window.
2719 If the window already has a drop target, it is deleted.
2721 \wxheading{See also
}
2723 \helpref{wxWindow::GetDropTarget
}{wxwindowgetdroptarget
},
2724 \helpref{Drag and drop overview
}{wxdndoverview
}
2728 \membersection{wxWindow::SetEventHandler
}\label{wxwindowseteventhandler
}
2730 \func{void
}{SetEventHandler
}{\param{wxEvtHandler*
}{handler
}}
2732 Sets the event handler for this window.
2734 \wxheading{Parameters
}
2736 \docparam{handler
}{Specifies the handler to be set.
}
2740 An event handler is an object that is capable of processing the events
2741 sent to a window. By default, the window is its own event handler, but
2742 an application may wish to substitute another, for example to allow
2743 central implementation of event-handling for a variety of different
2746 It is usually better to use
\helpref{wxWindow::PushEventHandler
}{wxwindowpusheventhandler
} since
2747 this sets up a chain of event handlers, where an event not handled by one event handler is
2748 handed to the next one in the chain.
2750 \wxheading{See also
}
2752 \helpref{wxWindow::GetEventHandler
}{wxwindowgeteventhandler
},
\rtfsp
2753 \helpref{wxWindow::PushEventHandler
}{wxwindowpusheventhandler
},
\rtfsp
2754 \helpref{wxWindow::PopEventHandler
}{wxwindowpusheventhandler
},
\rtfsp
2755 \helpref{wxEvtHandler::ProcessEvent
}{wxevthandlerprocessevent
},
\rtfsp
2756 \helpref{wxEvtHandler
}{wxevthandler
}
2759 \membersection{wxWindow::SetExtraStyle
}\label{wxwindowsetextrastyle
}
2761 \func{void
}{SetExtraStyle
}{\param{long
}{exStyle
}}
2763 Sets the extra style bits for the window. The currently defined extra style
2767 \begin{twocollist
}\itemsep=
0pt
2768 \twocolitem{\windowstyle{wxWS
\_EX\_VALIDATE\_RECURSIVELY}}{TransferDataTo/FromWindow()
2769 and Validate() methods will recursively descend into all children of the
2770 window if it has this style flag set.
}
2771 \twocolitem{\windowstyle{wxWS
\_EX\_BLOCK\_EVENTS}}{Normally, the command
2772 events are propagated upwards to the window parent recursively until a handler
2773 for them is found. Using this style allows to prevent them from being
2774 propagated beyond this window. Notice that wxDialog has this style on by
2775 default for the reasons explained in the
2776 \helpref{event processing overview
}{eventprocessing
}.
}
2777 \twocolitem{\windowstyle{wxWS
\_EX\_TRANSIENT}}{This can be used to prevent a
2778 window from being used as an implicit parent for the dialogs which were
2779 created without a parent. It is useful for the windows which can disappear at
2780 any moment as creating children of such windows results in fatal problems.
}
2781 \twocolitem{\windowstyle{wxFRAME
\_EX\_CONTEXTHELP}}{Under Windows, puts a query button on the
2782 caption. When pressed, Windows will go into a context-sensitive help mode and wxWidgets will send
2783 a wxEVT
\_HELP event if the user clicked on an application window.
2784 This style cannot be used together with wxMAXIMIZE
\_BOX or wxMINIMIZE
\_BOX, so
2785 you should use the style of
2786 {\tt wxDEFAULT
\_FRAME\_STYLE \&
\textasciitilde(wxMINIMIZE
\_BOX | wxMAXIMIZE
\_BOX)
} for the
2787 frames having this style (the dialogs don't have minimize nor maximize box by
2789 \twocolitem{\windowstyle{wxWS
\_EX\_PROCESS\_IDLE}}{This window should always process idle events, even
2790 if the mode set by
\helpref{wxIdleEvent::SetMode
}{wxidleeventsetmode
} is wxIDLE
\_PROCESS\_SPECIFIED.
}
2791 \twocolitem{\windowstyle{wxWS
\_EX\_PROCESS\_UI\_UPDATES}}{This window should always process UI update events,
2792 even if the mode set by
\helpref{wxUpdateUIEvent::SetMode
}{wxupdateuieventsetmode
} is wxUPDATE
\_UI\_PROCESS\_SPECIFIED.
}
2796 \membersection{wxWindow::SetFocus
}\label{wxwindowsetfocus
}
2798 \func{virtual void
}{SetFocus
}{\void}
2800 This sets the window to receive keyboard input.
2802 \wxheading{See also
}
2804 \helpref{wxFocusEvent
}{wxfocusevent
}
2805 \helpref{wxPanel::SetFocus
}{wxpanelsetfocus
}
2806 \helpref{wxPanel::SetFocusIgnoringChildren
}{wxpanelsetfocusignoringchildren
}
2809 \membersection{wxWindow::SetFocusFromKbd
}\label{wxwindowsetfocusfromkbd
}
2811 \func{virtual void
}{SetFocusFromKbd
}{\void}
2813 This function is called by wxWidgets keyboard navigation code when the user
2814 gives the focus to this window from keyboard (e.g. using
{\tt TAB
} key).
2815 By default this method simply calls
\helpref{SetFocus
}{wxwindowsetfocus
} but
2816 can be overridden to do something in addition to this in the derived classes.
2819 \membersection{wxWindow::SetFont
}\label{wxwindowsetfont
}
2821 \func{void
}{SetFont
}{\param{const wxFont\&
}{font
}}
2823 Sets the font for this window. This function should not be called for the
2824 parent window if you don't want its font to be inherited by its children,
2825 use
\helpref{SetOwnFont
}{wxwindowsetownfont
} instead in this case and
2826 see
\helpref{InheritAttributes
}{wxwindowinheritattributes
} for more
2829 \wxheading{Parameters
}
2831 \docparam{font
}{Font to associate with this window, pass
2832 {\tt wxNullFont
} to reset to the default font.
}
2834 \wxheading{See also
}
2836 \helpref{wxWindow::GetFont
}{wxwindowgetfont
},\\
2837 \helpref{InheritAttributes
}{wxwindowinheritattributes
}
2840 \membersection{wxWindow::SetForegroundColour
}\label{wxwindowsetforegroundcolour
}
2842 \func{virtual void
}{SetForegroundColour
}{\param{const wxColour\&
}{colour
}}
2844 Sets the foreground colour of the window.
2846 Please see
\helpref{InheritAttributes
}{wxwindowinheritattributes
} for
2847 explanation of the difference between this method and
2848 \helpref{SetOwnForegroundColour
}{wxwindowsetownforegroundcolour
}.
2850 \wxheading{Parameters
}
2852 \docparam{colour
}{The colour to be used as the foreground colour, pass
2853 {\tt wxNullColour
} to reset to the default colour.
}
2857 The interpretation of foreground colour is open to interpretation according
2858 to the window class; it may be the text colour or other colour, or it may not
2861 Using this function will disable attempts to use themes for this
2862 window, if the system supports them. Use with care since usually the
2863 themes represent the appearance chosen by the user to be used for all
2864 applications on the system.
2866 \wxheading{See also
}
2868 \helpref{wxWindow::GetForegroundColour
}{wxwindowgetforegroundcolour
},
\rtfsp
2869 \helpref{wxWindow::SetBackgroundColour
}{wxwindowsetbackgroundcolour
},
\rtfsp
2870 \helpref{wxWindow::GetBackgroundColour
}{wxwindowgetbackgroundcolour
},
\rtfsp
2871 \helpref{wxWindow::ShouldInheritColours
}{wxwindowshouldinheritcolours
}
2874 \membersection{wxWindow::SetHelpText
}\label{wxwindowsethelptext
}
2876 \func{virtual void
}{SetHelpText
}{\param{const wxString\&
}{helpText
}}
2878 Sets the help text to be used as context-sensitive help for this window.
2880 Note that the text is actually stored by the current
\helpref{wxHelpProvider
}{wxhelpprovider
} implementation,
2881 and not in the window object itself.
2883 \wxheading{See also
}
2885 \helpref{GetHelpText
}{wxwindowgethelptext
},
\helpref{wxHelpProvider
}{wxhelpprovider
}
2888 \membersection{wxWindow::SetId
}\label{wxwindowsetid
}
2890 \func{void
}{SetId
}{\param{int
}{ id
}}
2892 Sets the identifier of the window.
2896 Each window has an integer identifier. If the application has not provided one,
2897 an identifier will be generated. Normally, the identifier should be provided
2898 on creation and should not be modified subsequently.
2900 \wxheading{See also
}
2902 \helpref{wxWindow::GetId
}{wxwindowgetid
},
\rtfsp
2903 \helpref{Window identifiers
}{windowids
}
2907 \membersection{wxWindow::SetLabel
}\label{wxwindowsetlabel
}
2909 \func{virtual void
}{SetLabel
}{\param{const wxString\&
}{label
}}
2911 Sets the window's label.
2913 \wxheading{Parameters
}
2915 \docparam{label
}{The window label.
}
2917 \wxheading{See also
}
2919 \helpref{wxWindow::GetLabel
}{wxwindowgetlabel
}
2922 \membersection{wxWindow::SetName
}\label{wxwindowsetname
}
2924 \func{virtual void
}{SetName
}{\param{const wxString\&
}{name
}}
2926 Sets the window's name.
2928 \wxheading{Parameters
}
2930 \docparam{name
}{A name to set for the window.
}
2932 \wxheading{See also
}
2934 \helpref{wxWindow::GetName
}{wxwindowgetname
}
2937 \membersection{wxWindow::SetPalette
}\label{wxwindowsetpalette
}
2939 \func{virtual void
}{SetPalette
}{\param{wxPalette*
}{palette
}}
2941 Obsolete - use
\helpref{wxDC::SetPalette
}{wxdcsetpalette
} instead.
2944 \membersection{wxWindow::SetScrollbar
}\label{wxwindowsetscrollbar
}
2946 \func{virtual void
}{SetScrollbar
}{\param{int
}{orientation
},
\param{int
}{position
},
\rtfsp
2947 \param{int
}{thumbSize
},
\param{int
}{range
},
\rtfsp
2948 \param{bool
}{refresh =
{\tt true
}}}
2950 Sets the scrollbar properties of a built-in scrollbar.
2952 \wxheading{Parameters
}
2954 \docparam{orientation
}{Determines the scrollbar whose page size is to be set. May be wxHORIZONTAL or wxVERTICAL.
}
2956 \docparam{position
}{The position of the scrollbar in scroll units.
}
2958 \docparam{thumbSize
}{The size of the thumb, or visible portion of the scrollbar, in scroll units.
}
2960 \docparam{range
}{The maximum position of the scrollbar.
}
2962 \docparam{refresh
}{{\tt true
} to redraw the scrollbar,
{\tt false
} otherwise.
}
2966 Let's say you wish to display
50 lines of text, using the same font.
2967 The window is sized so that you can only see
16 lines at a time.
2973 SetScrollbar(wxVERTICAL,
0,
16,
50);
2977 Note that with the window at this size, the thumb position can never go
2978 above
50 minus
16, or
34.
2980 You can determine how many lines are currently visible by dividing the current view
2981 size by the character height in pixels.
2983 When defining your own scrollbar behaviour, you will always need to recalculate
2984 the scrollbar settings when the window size changes. You could therefore put your
2985 scrollbar calculations and SetScrollbar
2986 call into a function named AdjustScrollbars, which can be called initially and also
2987 from your
\helpref{wxSizeEvent
}{wxsizeevent
} handler function.
2989 \wxheading{See also
}
2991 \helpref{Scrolling overview
}{scrollingoverview
},
\rtfsp
2992 \helpref{wxScrollBar
}{wxscrollbar
},
\helpref{wxScrolledWindow
}{wxscrolledwindow
}
2997 \membersection{wxWindow::SetScrollPage
}\label{wxwindowsetscrollpage
}
2999 \func{virtual void
}{SetScrollPage
}{\param{int
}{orientation
},
\param{int
}{pageSize
},
\param{bool
}{refresh =
{\tt true
}}}
3001 Sets the page size of one of the built-in scrollbars.
3003 \wxheading{Parameters
}
3005 \docparam{orientation
}{Determines the scrollbar whose page size is to be set. May be wxHORIZONTAL or wxVERTICAL.
}
3007 \docparam{pageSize
}{Page size in scroll units.
}
3009 \docparam{refresh
}{{\tt true
} to redraw the scrollbar,
{\tt false
} otherwise.
}
3013 The page size of a scrollbar is the number of scroll units that the scroll thumb travels when you
3014 click on the area above/left of or below/right of the thumb. Normally you will want a whole visible
3015 page to be scrolled, i.e. the size of the current view (perhaps the window client size). This
3016 value has to be adjusted when the window is resized, since the page size will have changed.
3018 In addition to specifying how far the scroll thumb travels when paging, in Motif and some versions of Windows
3019 the thumb changes size to reflect the page size relative to the length of the
document. When the
3020 document size is only slightly bigger than the current view (window) size, almost all of the scrollbar
3021 will be taken up by the thumb. When the two values become the same, the scrollbar will (on some systems)
3024 Currently, this function should be called before SetPageRange, because of a quirk in the Windows
3025 handling of pages and ranges.
3027 \wxheading{See also
}
3029 \helpref{wxWindow::SetScrollPos
}{wxwindowsetscrollpos
},
\rtfsp
3030 \helpref{wxWindow::GetScrollPos
}{wxwindowgetscrollpos
},
\rtfsp
3031 \helpref{wxWindow::GetScrollPage
}{wxwindowgetscrollpage
},
\rtfsp
3032 \helpref{wxScrollBar
}{wxscrollbar
},
\helpref{wxScrolledWindow
}{wxscrolledwindow
}
3036 \membersection{wxWindow::SetScrollPos
}\label{wxwindowsetscrollpos
}
3038 \func{virtual void
}{SetScrollPos
}{\param{int
}{orientation
},
\param{int
}{pos
},
\param{bool
}{refresh =
{\tt true
}}}
3040 Sets the position of one of the built-in scrollbars.
3042 \wxheading{Parameters
}
3044 \docparam{orientation
}{Determines the scrollbar whose position is to be set. May be wxHORIZONTAL or wxVERTICAL.
}
3046 \docparam{pos
}{Position in scroll units.
}
3048 \docparam{refresh
}{{\tt true
} to redraw the scrollbar,
{\tt false
} otherwise.
}
3052 This function does not directly affect the contents of the window: it is up to the
3053 application to take note of scrollbar attributes and redraw contents accordingly.
3055 \wxheading{See also
}
3057 \helpref{wxWindow::SetScrollbar
}{wxwindowsetscrollbar
},
\rtfsp
3058 \helpref{wxWindow::GetScrollPos
}{wxwindowgetscrollpos
},
\rtfsp
3059 \helpref{wxWindow::GetScrollThumb
}{wxwindowgetscrollthumb
},
\rtfsp
3060 \helpref{wxScrollBar
}{wxscrollbar
},
\helpref{wxScrolledWindow
}{wxscrolledwindow
}
3065 \membersection{wxWindow::SetScrollRange
}\label{wxwindowsetscrollrange
}
3067 \func{virtual void
}{SetScrollRange
}{\param{int
}{orientation
},
\param{int
}{range
},
\param{bool
}{refresh =
{\tt true
}}}
3069 Sets the range of one of the built-in scrollbars.
3071 \wxheading{Parameters
}
3073 \docparam{orientation
}{Determines the scrollbar whose range is to be set. May be wxHORIZONTAL or wxVERTICAL.
}
3075 \docparam{range
}{Scroll range.
}
3077 \docparam{refresh
}{{\tt true
} to redraw the scrollbar,
{\tt false
} otherwise.
}
3081 The range of a scrollbar is the number of steps that the thumb may travel, rather than the total
3082 object length of the scrollbar. If you are implementing a scrolling window, for example, you
3083 would adjust the scroll range when the window is resized, by subtracting the window view size from the
3084 total virtual window size. When the two sizes are the same (all the window is visible), the range goes to zero
3085 and usually the scrollbar will be automatically hidden.
3087 \wxheading{See also
}
3089 \helpref{wxWindow::SetScrollPos
}{wxwindowsetscrollpos
},
\rtfsp
3090 \helpref{wxWindow::SetScrollPage
}{wxwindowsetscrollpage
},
\rtfsp
3091 \helpref{wxWindow::GetScrollPos
}{wxwindowgetscrollpos
},
\rtfsp
3092 \helpref{wxWindow::GetScrollPage
}{wxwindowgetscrollpage
},
\rtfsp
3093 \helpref{wxScrollBar
}{wxscrollbar
},
\helpref{wxScrolledWindow
}{wxscrolledwindow
}
3097 \membersection{wxWindow::SetSize
}\label{wxwindowsetsize
}
3099 \func{virtual void
}{SetSize
}{\param{int
}{ x
},
\param{int
}{ y
},
\param{int
}{ width
},
\param{int
}{ height
},
3100 \param{int
}{ sizeFlags = wxSIZE
\_AUTO}}
3102 \func{virtual void
}{SetSize
}{\param{const wxRect\&
}{ rect
}}
3104 Sets the size and position of the window in pixels.
3106 \func{virtual void
}{SetSize
}{\param{int
}{ width
},
\param{int
}{ height
}}
3108 \func{virtual void
}{SetSize
}{\param{const wxSize\&
}{ size
}}
3110 Sets the size of the window in pixels.
3112 \wxheading{Parameters
}
3114 \docparam{x
}{Required x position in pixels, or -
1 to indicate that the existing
3115 value should be used.
}
3117 \docparam{y
}{Required y position in pixels, or -
1 to indicate that the existing
3118 value should be used.
}
3120 \docparam{width
}{Required width in pixels, or -
1 to indicate that the existing
3121 value should be used.
}
3123 \docparam{height
}{Required height position in pixels, or -
1 to indicate that the existing
3124 value should be used.
}
3126 \docparam{size
}{\helpref{wxSize
}{wxsize
} object for setting the size.
}
3128 \docparam{rect
}{\helpref{wxRect
}{wxrect
} object for setting the position and size.
}
3130 \docparam{sizeFlags
}{Indicates the interpretation of other parameters. It is a bit list of the following:
3132 {\bf wxSIZE
\_AUTO\_WIDTH}: a -
1 width value is taken to indicate
3133 a wxWidgets-supplied default width.\\
3134 {\bf wxSIZE
\_AUTO\_HEIGHT}: a -
1 height value is taken to indicate
3135 a wxWidgets-supplied default width.\\
3136 {\bf wxSIZE
\_AUTO}: -
1 size values are taken to indicate
3137 a wxWidgets-supplied default size.\\
3138 {\bf wxSIZE
\_USE\_EXISTING}: existing dimensions should be used
3139 if -
1 values are supplied.\\
3140 {\bf wxSIZE
\_ALLOW\_MINUS\_ONE}: allow dimensions of -
1 and less to be interpreted
3141 as real dimensions, not default values.
3146 The second form is a convenience for calling the first form with default
3147 x and y parameters, and must be used with non-default width and height values.
3149 The first form sets the position and optionally size, of the window.
3150 Parameters may be -
1 to indicate either that a default should be supplied
3151 by wxWidgets, or that the current value of the dimension should be used.
3153 \wxheading{See also
}
3155 \helpref{wxWindow::Move
}{wxwindowmove
}
3157 \pythonnote{In place of a single overloaded method name, wxPython
3158 implements the following methods:
\par
3159 \indented{2cm
}{\begin{twocollist
}
3160 \twocolitem{{\bf SetDimensions(x, y, width, height, sizeFlags=wxSIZE
\_AUTO)
}}{}
3161 \twocolitem{{\bf SetSize(size)
}}{}
3162 \twocolitem{{\bf SetPosition(point)
}}{}
3167 \membersection{wxWindow::SetSizeHints
}\label{wxwindowsetsizehints
}
3169 \func{virtual void
}{SetSizeHints
}{\param{int
}{ minW=-
1},
\param{int
}{ minH=-
1},
\param{int
}{ maxW=-
1},
\param{int
}{ maxH=-
1},
3170 \param{int
}{ incW=-
1},
\param{int
}{ incH=-
1}}
3172 \func{void
}{SetSizeHints
}{\param{const wxSize\&
}{ minSize
},
3173 \param{const wxSize\&
}{ maxSize=wxDefaultSize
},
\param{const wxSize\&
}{ incSize=wxDefaultSize
}}
3176 Allows specification of minimum and maximum window sizes, and window size increments.
3177 If a pair of values is not set (or set to -
1), the default values will be used.
3179 \wxheading{Parameters
}
3181 \docparam{minW
}{Specifies the minimum width allowable.
}
3183 \docparam{minH
}{Specifies the minimum height allowable.
}
3185 \docparam{maxW
}{Specifies the maximum width allowable.
}
3187 \docparam{maxH
}{Specifies the maximum height allowable.
}
3189 \docparam{incW
}{Specifies the increment for sizing the width (Motif/Xt only).
}
3191 \docparam{incH
}{Specifies the increment for sizing the height (Motif/Xt only).
}
3193 \docparam{minSize
}{Minimum size.
}
3195 \docparam{maxSize
}{Maximum size.
}
3197 \docparam{incSize
}{Increment size (Motif/Xt only).
}
3201 If this function is called, the user will not be able to size the window outside the
3204 The resizing increments are only significant under Motif or Xt.
3207 \membersection{wxWindow::SetSizer
}\label{wxwindowsetsizer
}
3209 \func{void
}{SetSizer
}{\param{wxSizer*
}{sizer
},
\param{bool
}{deleteOld=true
}}
3211 Sets the window to have the given layout sizer. The window
3212 will then own the object, and will take care of its deletion.
3213 If an existing layout constraints object is already owned by the
3214 window, it will be deleted if the deleteOld parameter is true.
3216 Note that this function will also call
3217 \helpref{SetAutoLayout
}{wxwindowsetautolayout
} implicitly with
{\tt true
}
3218 parameter if the
{\it sizer
}\/ is non-NULL and
{\tt false
} otherwise.
3220 \wxheading{Parameters
}
3222 \docparam{sizer
}{The sizer to set. Pass NULL to disassociate and conditionally delete
3223 the window's sizer. See below.
}
3225 \docparam{deleteOld
}{If true (the default), this will delete any prexisting sizer.
3226 Pass false if you wish to handle deleting the old sizer yourself.
}
3230 SetSizer now enables and disables Layout automatically, but prior to wxWidgets
2.3.3
3231 the following applied:
3233 You must call
\helpref{wxWindow::SetAutoLayout
}{wxwindowsetautolayout
} to tell a window to use
3234 the sizer automatically in OnSize; otherwise, you must override OnSize and call Layout()
3235 explicitly. When setting both a wxSizer and a
\helpref{wxLayoutConstraints
}{wxlayoutconstraints
},
3236 only the sizer will have effect.
3239 \membersection{wxWindow::SetSizerAndFit
}\label{wxwindowsetsizerandfit
}
3241 \func{void
}{SetSizerAndFit
}{\param{wxSizer*
}{sizer
},
\param{bool
}{deleteOld=true
}}
3243 The same as
\helpref{SetSizer
}{wxwindowsetsizer
}, except it also sets the size hints
3244 for the window based on the sizer's minimum size.
3247 \membersection{wxWindow::SetTitle
}\label{wxwindowsettitle
}
3249 \func{virtual void
}{SetTitle
}{\param{const wxString\&
}{title
}}
3251 Sets the window's title. Applicable only to frames and dialogs.
3253 \wxheading{Parameters
}
3255 \docparam{title
}{The window's title.
}
3257 \wxheading{See also
}
3259 \helpref{wxWindow::GetTitle
}{wxwindowgettitle
}
3262 \membersection{wxWindow::SetThemeEnabled
}\label{wxwindowsetthemeenabled
}
3264 \func{virtual void
}{SetThemeEnabled
}{\param{bool
}{enable
}}
3266 This function tells a window if it should use the system's "theme" code
3267 to draw the windows' background instead if its own background drawing
3268 code. This does not always have any effect since the underlying platform
3269 obviously needs to support the notion of themes in user defined windows.
3270 One such platform is GTK+ where windows can have (very colourful) backgrounds
3271 defined by a user's selected theme.
3273 Dialogs, notebook pages and the status bar have this flag set to true
3274 by default so that the default look and feel is simulated best.
3277 \membersection{wxWindow::SetToolTip
}\label{wxwindowsettooltip
}
3279 \func{void
}{SetToolTip
}{\param{const wxString\&
}{tip
}}
3281 \func{void
}{SetToolTip
}{\param{wxToolTip*
}{tip
}}
3283 Attach a tooltip to the window.
3285 See also:
\helpref{GetToolTip
}{wxwindowgettooltip
},
3286 \helpref{wxToolTip
}{wxtooltip
}
3289 \membersection{wxWindow::SetValidator
}\label{wxwindowsetvalidator
}
3291 \func{virtual void
}{SetValidator
}{\param{const wxValidator\&
}{ validator
}}
3293 Deletes the current validator (if any) and sets the window validator, having called wxValidator::Clone to
3294 create a new validator of this type.
3297 \membersection{wxWindow::SetVirtualSize
}\label{wxwindowsetvirtualsize
}
3299 \func{void
}{SetVirtualSize
}{\param{int
}{ width
},
\param{int
}{ height
}}
3301 \func{void
}{SetVirtualSize
}{\param{const wxSize\&
}{ size
}}
3303 Sets the virtual size of the window in pixels.
3306 \membersection{wxWindow::SetVirtualSizeHints
}\label{wxwindowsetvirtualsizehints
}
3308 \func{virtual void
}{SetVirtualSizeHints
}{\param{int
}{ minW
},
\param{int
}{ minH
},
\param{int
}{ maxW=-
1},
\param{int
}{ maxH=-
1}}
3310 \func{void
}{SetVirtualSizeHints
}{\param{const wxSize\&
}{ minSize=wxDefaultSize
},
3311 \param{const wxSize\&
}{ maxSize=wxDefaultSize
}}
3314 Allows specification of minimum and maximum virtual window sizes.
3315 If a pair of values is not set (or set to -
1), the default values
3318 \wxheading{Parameters
}
3320 \docparam{minW
}{Specifies the minimum width allowable.
}
3322 \docparam{minH
}{Specifies the minimum height allowable.
}
3324 \docparam{maxW
}{Specifies the maximum width allowable.
}
3326 \docparam{maxH
}{Specifies the maximum height allowable.
}
3328 \docparam{minSize
}{Minimum size.
}
3330 \docparam{maxSize
}{Maximum size.
}
3334 If this function is called, the user will not be able to size the virtual area
3335 of the window outside the given bounds.
3338 \membersection{wxWindow::SetWindowStyle
}\label{wxwindowsetwindowstyle
}
3340 \func{void
}{SetWindowStyle
}{\param{long
}{ style
}}
3342 Identical to
\helpref{SetWindowStyleFlag
}{wxwindowsetwindowstyleflag
}.
3345 \membersection{wxWindow::SetWindowStyleFlag
}\label{wxwindowsetwindowstyleflag
}
3347 \func{virtual void
}{SetWindowStyleFlag
}{\param{long
}{ style
}}
3349 Sets the style of the window. Please note that some styles cannot be changed
3350 after the window creation and that
\helpref{Refresh()
}{wxwindowrefresh
} might
3351 be called after changing the others for the change to take place immediately.
3353 See
\helpref{Window styles
}{windowstyles
} for more information about flags.
3355 \wxheading{See also
}
3357 \helpref{GetWindowStyleFlag
}{wxwindowgetwindowstyleflag
}
3360 \membersection{wxWindow::SetWindowVariant
}\label{wxwindowsetwindowvariant
}
3362 \func{void
}{SetWindowVariant
}{\param{wxWindowVariant
}{variant
}}
3364 This function can be called under all platforms but only does anything under
3365 Mac OS X
10.3+ currently. Under this system, each of the standard control can
3366 exist in several sizes which correspond to the elements of wxWindowVariant
3369 enum wxWindowVariant
3371 wxWINDOW_VARIANT_NORMAL, // Normal size
3372 wxWINDOW_VARIANT_SMALL, // Smaller size (about
25 % smaller than normal )
3373 wxWINDOW_VARIANT_MINI, // Mini size (about
33 % smaller than normal )
3374 wxWINDOW_VARIANT_LARGE, // Large size (about
25 % larger than normal )
3378 By default the controls use the normal size, of course, but this function can
3379 be used to change this.
3382 \membersection{wxWindow::ShouldInheritColours
}\label{wxwindowshouldinheritcolours
}
3384 \func{virtual bool
}{ShouldInheritColours
}{\void}
3386 Return
\true from here to allow the colours of this window to be changed by
3387 \helpref{InheritAttributes
}{wxwindowinheritattributes
}, returning
\false
3388 forbids inheriting them from the parent window.
3390 The base class version returns
\false, but this method is overridden in
3391 \helpref{wxControl
}{wxcontrol
} where it returns
\true.
3394 \membersection{wxWindow::Show
}\label{wxwindowshow
}
3396 \func{virtual bool
}{Show
}{\param{bool
}{ show =
{\tt true
}}}
3398 Shows or hides the window. You may need to call
\helpref{Raise
}{wxwindowraise
}
3399 for a top level window if you want to bring it to top, although this is not
3400 needed if Show() is called immediately after the frame creation.
3402 \wxheading{Parameters
}
3404 \docparam{show
}{If
{\tt true
} displays the window. Otherwise, hides it.
}
3406 \wxheading{Return value
}
3408 {\tt true
} if the window has been shown or hidden or
{\tt false
} if nothing was
3409 done because it already was in the requested state.
3411 \wxheading{See also
}
3413 \helpref{wxWindow::IsShown
}{wxwindowisshown
},
\rtfsp
3414 \helpref{wxWindow::Hide
}{wxwindowhide
},
\rtfsp
3415 \helpref{wxRadioBox::Show
}{wxradioboxshow
}
3418 \membersection{wxWindow::Thaw
}\label{wxwindowthaw
}
3420 \func{virtual void
}{Thaw
}{\void}
3422 Reenables window updating after a previous call to
3423 \helpref{Freeze
}{wxwindowfreeze
}. To really thaw the control, it must be called
3424 exactly the same number of times as
\helpref{Freeze
}{wxwindowfreeze
}.
3427 \membersection{wxWindow::TransferDataFromWindow
}\label{wxwindowtransferdatafromwindow
}
3429 \func{virtual bool
}{TransferDataFromWindow
}{\void}
3431 Transfers values from child controls to data areas specified by their validators. Returns
3432 {\tt false
} if a transfer failed.
3434 If the window has
{\tt wxWS
\_EX\_VALIDATE\_RECURSIVELY} extra style flag set,
3435 the method will also call TransferDataFromWindow() of all child windows.
3437 \wxheading{See also
}
3439 \helpref{wxWindow::TransferDataToWindow
}{wxwindowtransferdatatowindow
},
\rtfsp
3440 \helpref{wxValidator
}{wxvalidator
},
\helpref{wxWindow::Validate
}{wxwindowvalidate
}
3443 \membersection{wxWindow::TransferDataToWindow
}\label{wxwindowtransferdatatowindow
}
3445 \func{virtual bool
}{TransferDataToWindow
}{\void}
3447 Transfers values to child controls from data areas specified by their validators.
3449 If the window has
{\tt wxWS
\_EX\_VALIDATE\_RECURSIVELY} extra style flag set,
3450 the method will also call TransferDataToWindow() of all child windows.
3452 \wxheading{Return value
}
3454 Returns
{\tt false
} if a transfer failed.
3456 \wxheading{See also
}
3458 \helpref{wxWindow::TransferDataFromWindow
}{wxwindowtransferdatafromwindow
},
\rtfsp
3459 \helpref{wxValidator
}{wxvalidator
},
\helpref{wxWindow::Validate
}{wxwindowvalidate
}
3462 \membersection{wxWindow::UnregisterHotKey
}\label{wxwindowunregisterhotkey
}
3464 \func{bool
}{UnregisterHotKey
}{\param{int
}{ hotkeyId
}}
3466 Unregisters a system wide hotkey.
3468 \wxheading{Parameters
}
3470 \docparam{hotkeyId
}{Numeric identifier of the hotkey. Must be the same id that was passed to RegisterHotKey.
}
3472 \wxheading{Return value
}
3474 {\tt true
} if the hotkey was unregistered successfully,
{\tt false
} if the id was invalid.
3478 This function is currently only implemented under MSW.
3480 \wxheading{See also
}
3482 \helpref{wxWindow::RegisterHotKey
}{wxwindowregisterhotkey
}
3485 \membersection{wxWindow::Update
}\label{wxwindowupdate
}
3487 \func{virtual void
}{Update
}{\void}
3489 Calling this method immediately repaints the invalidated area of the window
3490 while this would usually only happen when the flow of control returns to the
3491 event loop. Notice that this function doesn't refresh the window and does
3492 nothing if the window hadn't been already repainted. Use
3493 \helpref{Refresh
}{wxwindowrefresh
} first if you want to immediately redraw the
3494 window unconditionally.
3497 \membersection{wxWindow::UpdateWindowUI
}\label{wxwindowupdatewindowui
}
3499 \func{virtual void
}{UpdateWindowUI
}{\param{long
}{ flags = wxUPDATE
\_UI\_NONE}}
3501 This function sends
\helpref{wxUpdateUIEvents
}{wxupdateuievent
} to
3502 the window. The particular implementation depends on the window; for
3503 example a wxToolBar will send an update UI event for each toolbar button,
3504 and a wxFrame will send an update UI event for each menubar menu item.
3505 You can call this function from your application to ensure that your
3506 UI is up-to-date at this point (as far as your wxUpdateUIEvent handlers
3507 are concerned). This may be necessary if you have called
3508 \helpref{wxUpdateUIEvent::SetMode
}{wxupdateuieventsetmode
} or
3509 \helpref{wxUpdateUIEvent::SetUpdateInterval
}{wxupdateuieventsetupdateinterval
} to
3510 limit the overhead that wxWidgets incurs by sending update UI events in idle time.
3512 {\it flags
} should be a bitlist of one or more of the following values.
3517 wxUPDATE_UI_NONE =
0x0000, // No particular value
3518 wxUPDATE_UI_RECURSE =
0x0001, // Call the function for descendants
3519 wxUPDATE_UI_FROMIDLE =
0x0002 // Invoked from On(Internal)Idle
3523 If you are calling this function from an OnInternalIdle or OnIdle
3524 function, make sure you pass the wxUPDATE
\_UI\_FROMIDLE flag, since
3525 this tells the window to only update the UI elements that need
3526 to be updated in idle time. Some windows update their elements
3527 only when necessary, for example when a menu is about to be shown.
3528 The following is an example of how to call UpdateWindowUI from
3532 void MyWindow::OnInternalIdle()
3534 if (wxUpdateUIEvent::CanUpdate(this))
3535 UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
3539 \wxheading{See also
}
3541 \helpref{wxUpdateUIEvent
}{wxupdateuievent
},
3542 \helpref{wxWindow::DoUpdateWindowUI
}{wxwindowdoupdatewindowui
},
3543 \helpref{wxWindow::OnInternalIdle
}{wxwindowoninternalidle
}
3546 \membersection{wxWindow::Validate
}\label{wxwindowvalidate
}
3548 \func{virtual bool
}{Validate
}{\void}
3550 Validates the current values of the child controls using their validators.
3552 If the window has
{\tt wxWS
\_EX\_VALIDATE\_RECURSIVELY} extra style flag set,
3553 the method will also call Validate() of all child windows.
3555 \wxheading{Return value
}
3557 Returns
{\tt false
} if any of the validations failed.
3559 \wxheading{See also
}
3561 \helpref{wxWindow::TransferDataFromWindow
}{wxwindowtransferdatafromwindow
},
\rtfsp
3562 \helpref{wxWindow::TransferDataToWindow
}{wxwindowtransferdatatowindow
},
\rtfsp
3563 \helpref{wxValidator
}{wxvalidator
}
3566 \membersection{wxWindow::WarpPointer
}\label{wxwindowwarppointer
}
3568 \func{void
}{WarpPointer
}{\param{int
}{ x
},
\param{int
}{ y
}}
3570 Moves the pointer to the given position on the window.
3572 {\bf NB:
} This function is not supported under Mac because Apple Human
3573 Interface Guidelines forbid moving the mouse cursor programmatically.
3575 \wxheading{Parameters
}
3577 \docparam{x
}{The new x position for the cursor.
}
3579 \docparam{y
}{The new y position for the cursor.
}