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1\section{\class{wxWindow}}\label{wxwindow}
2
3wxWindow is the base class for all windows. Any children of the window will be deleted
4automatically by the destructor before the window itself is deleted.
5
6Please note that we documented a number of handler functions (OnChar(), OnMouse() etc.) in this
7help text. These must not be called by a user program and are documented only for illustration.
8On several platforms, only a few of these handlers are actually written (they are not always
9needed) and if you are uncertain on how to add a certain behaviour to a window class, intercept
10the respective event as usual and call \helpref{wxEvent::Skip}{wxeventskip} so that the native
11platform can implement its native behaviour or just ignore the event if nothing needs to be
12done.
13
14\wxheading{Derived from}
15
16\helpref{wxEvtHandler}{wxevthandler}\\
17\helpref{wxObject}{wxobject}
18
19\wxheading{Include files}
20
21<wx/window.h>
22
23\wxheading{Window styles}
24
25The following styles can apply to all windows, although they will not always make sense for a particular
26window class or on all platforms.
27
28\twocolwidtha{5cm}%
29\begin{twocollist}\itemsep=0pt
30\twocolitem{\windowstyle{wxSIMPLE\_BORDER}}{Displays a thin border around the window. wxBORDER is the old name
31for this style. }
32\twocolitem{\windowstyle{wxDOUBLE\_BORDER}}{Displays a double border. Windows only.}
33\twocolitem{\windowstyle{wxSUNKEN\_BORDER}}{Displays a sunken border.}
34\twocolitem{\windowstyle{wxRAISED\_BORDER}}{Displays a raised border. GTK only. }
35\twocolitem{\windowstyle{wxSTATIC\_BORDER}}{Displays a border suitable for a static control. Windows only. }
36\twocolitem{\windowstyle{wxTRANSPARENT\_WINDOW}}{The window is transparent, that is, it will not receive paint
37events. Windows only.}
38\twocolitem{\windowstyle{wxNO\_3D}}{Prevents the children of this window taking on 3D styles, even though
39the application-wide policy is for 3D controls. Windows only.}
40\twocolitem{\windowstyle{wxTAB\_TRAVERSAL}}{Use this to enable tab traversal for non-dialog windows.}
41\twocolitem{\windowstyle{wxWANTS\_CHARS}}{Use this to indicate that the window
42wants to get all char events - even for keys like TAB or ENTER which are
43usually used for dialog navigation and which wouldn't be generated without
44this style}
45\twocolitem{\windowstyle{wxNO\_FULLREPAINT\_ON\_RESIZE}}{Disables repainting
46the window completely when its size is changed - you will have to repaint the
47new window area manually if you use style. Currently only has effect for
48Windows.}
49\twocolitem{\windowstyle{wxVSCROLL}}{Use this style to enable a vertical scrollbar. (Still used?) }
50\twocolitem{\windowstyle{wxHSCROLL}}{Use this style to enable a horizontal scrollbar. (Still used?) }
51\twocolitem{\windowstyle{wxCLIP\_CHILDREN}}{Use this style to eliminate flicker caused by the background being
52repainted, then children being painted over them. Windows only.}
53\end{twocollist}
54
55See also \helpref{window styles overview}{windowstyles}.
56
57\wxheading{See also}
58
59\helpref{Event handling overview}{eventhandlingoverview}
60
61\latexignore{\rtfignore{\wxheading{Members}}}
62
63\membersection{wxWindow::wxWindow}
64
65\func{}{wxWindow}{\void}
66
67Default constructor.
68
69\func{}{wxWindow}{\param{wxWindow*}{ parent}, \param{wxWindowID }{id},
70 \param{const wxPoint\& }{pos = wxDefaultPosition},
71 \param{const wxSize\& }{size = wxDefaultSize},
72 \param{long }{style = 0},
73 \param{const wxString\& }{name = wxPanelNameStr}}
74
75Constructs a window, which can be a child of a frame, dialog or any other non-control window.
76
77\wxheading{Parameters}
78
79\docparam{parent}{Pointer to a parent window.}
80
81\docparam{id}{Window identifier. If -1, will automatically create an identifier.}
82
83\docparam{pos}{Window position. wxDefaultPosition is (-1, -1) which indicates that wxWindows
84should generate a default position for the window. If using the wxWindow class directly, supply
85an actual position.}
86
87\docparam{size}{Window size. wxDefaultSize is (-1, -1) which indicates that wxWindows
88should generate a default size for the window. If no suitable size can be found, the
89window will be sized to 20x20 pixels so that the window is visible but obviously not
90correctly sized. }
91
92\docparam{style}{Window style. For generic window styles, please see \helpref{wxWindow}{wxwindow}.}
93
94\docparam{name}{Window name.}
95
96\membersection{wxWindow::\destruct{wxWindow}}
97
98\func{}{\destruct{wxWindow}}{\void}
99
100Destructor. Deletes all subwindows, then deletes itself. Instead of using
101the {\bf delete} operator explicitly, you should normally
102use \helpref{wxWindow::Destroy}{wxwindowdestroy} so that wxWindows
103can delete a window only when it is safe to do so, in idle time.
104
105\wxheading{See also}
106
107\helpref{Window deletion overview}{windowdeletionoverview},\rtfsp
108\helpref{wxWindow::OnCloseWindow}{wxwindowonclosewindow},\rtfsp
109\helpref{wxWindow::Destroy}{wxwindowdestroy},\rtfsp
110\helpref{wxCloseEvent}{wxcloseevent}
111
112\membersection{wxWindow::AddChild}
113
114\func{virtual void}{AddChild}{\param{wxWindow* }{child}}
115
116Adds a child window. This is called automatically by window creation
117functions so should not be required by the application programmer.
118
119\wxheading{Parameters}
120
121\docparam{child}{Child window to add.}
122
123\membersection{wxWindow::CaptureMouse}\label{wxwindowcapturemouse}
124
125\func{virtual void}{CaptureMouse}{\void}
126
127Directs all mouse input to this window. Call \helpref{wxWindow::ReleaseMouse}{wxwindowreleasemouse} to
128release the capture.
129
130\wxheading{See also}
131
132\helpref{wxWindow::ReleaseMouse}{wxwindowreleasemouse}
133
134\membersection{wxWindow::Center}\label{wxwindowcenter}
135
136\func{void}{Center}{\param{int}{ direction}}
137
138A synonym for \helpref{Centre}{wxwindowcentre}.
139
140\membersection{wxWindow::CenterOnParent}\label{wxwindowcenteronparent}
141
142\func{void}{CenterOnParent}{\param{int}{ direction}}
143
144A synonym for \helpref{CentreOnParent}{wxwindowcentreonparent}.
145
146\membersection{wxWindow::CenterOnScreen}\label{wxwindowcenteronscreen}
147
148\func{void}{CenterOnScreen}{\param{int}{ direction}}
149
150A synonym for \helpref{CentreOnScreen}{wxwindowcentreonscreen}.
151
152\membersection{wxWindow::Centre}\label{wxwindowcentre}
153
154\func{void}{Centre}{\param{int}{ direction = wxBOTH}}
155
156Centres the window.
157
158\wxheading{Parameters}
159
160\docparam{direction}{Specifies the direction for the centering. May be {\tt wxHORIZONTAL}, {\tt wxVERTICAL}\rtfsp
161or {\tt wxBOTH}. It may also include {\tt wxCENTRE\_ON\_SCREEN} flag
162if you want to center the window on the entire screen and not on its
163parent window.}
164
165The flag {\tt wxCENTRE\_FRAME} is obsolete and should not be used any longer
166(it has no effect).
167
168\wxheading{Remarks}
169
170If the window is a top level one (i.e. doesn't have a parent), it will be
171centered relative to the screen anyhow.
172
173\wxheading{See also}
174
175\helpref{wxWindow::Center}{wxwindowcenter}
176
177\membersection{wxWindow::CentreOnParent}\label{wxwindowcentreonparent}
178
179\func{void}{CentreOnParent}{\param{int}{ direction = wxBOTH}}
180
181Centres the window on its parent. This is a more readable synonym for
182\helpref{Centre}{wxwindowcentre}.
183
184\wxheading{Parameters}
185
186\docparam{direction}{Specifies the direction for the centering. May be {\tt wxHORIZONTAL}, {\tt wxVERTICAL}\rtfsp
187or {\tt wxBOTH}.}
188
189\wxheading{Remarks}
190
191This methods provides for a way to center top level windows over their
192parents instead of the entire screen. If there is no parent or if the
193window is not a top level window, then behaviour is the same as
194\helpref{wxWindow::Centre}{wxwindowcentre}.
195
196\wxheading{See also}
197
198\helpref{wxWindow::CentreOnScreen}{wxwindowcenteronscreen}
199
200\membersection{wxWindow::CentreOnScreen}\label{wxwindowcentreonscreen}
201
202\func{void}{CentreOnScreen}{\param{int}{ direction = wxBOTH}}
203
204Centres the window on screen. This only works for top level windows -
205otherwise, the window will still be centered on its parent.
206
207\wxheading{Parameters}
208
209\docparam{direction}{Specifies the direction for the centering. May be {\tt wxHORIZONTAL}, {\tt wxVERTICAL}\rtfsp
210or {\tt wxBOTH}.}
211
212\wxheading{See also}
213
214\helpref{wxWindow::CentreOnParent}{wxwindowcenteronparent}
215
216\membersection{wxWindow::Clear}\label{wxwindowclear}
217
218\func{void}{Clear}{\void}
219
220Clears the window by filling it with the current background colour. Does not
221cause an erase background event to be generated.
222
223\membersection{wxWindow::ClientToScreen}
224
225\constfunc{virtual void}{ClientToScreen}{\param{int* }{x}, \param{int* }{y}}
226
227\constfunc{virtual wxPoint}{ClientToScreen}{\param{const wxPoint\&}{ pt}}
228
229Converts to screen coordinates from coordinates relative to this window.
230
231\docparam{x}{A pointer to a integer value for the x coordinate. Pass the client coordinate in, and
232a screen coordinate will be passed out.}
233
234\docparam{y}{A pointer to a integer value for the y coordinate. Pass the client coordinate in, and
235a screen coordinate will be passed out.}
236
237\docparam{pt}{The client position for the second form of the function.}
238
239\pythonnote{In place of a single overloaded method name, wxPython
240implements the following methods:\par
241\indented{2cm}{\begin{twocollist}
242\twocolitem{{\bf ClientToScreen(point)}}{Accepts and returns a wxPoint}
243\twocolitem{{\bf ClientToScreenXY(x, y)}}{Returns a 2-tuple, (x, y)}
244\end{twocollist}}
245}
246
247
248\membersection{wxWindow::Close}\label{wxwindowclose}
249
250\func{virtual bool}{Close}{\param{bool}{ force = FALSE}}
251
252The purpose of this call is to provide a safer way of destroying a window than using
253the {\it delete} operator.
254
255\wxheading{Parameters}
256
257\docparam{force}{FALSE if the window's close handler should be able to veto the destruction
258of this window, TRUE if it cannot.}
259
260\wxheading{Remarks}
261
262Close calls the \helpref{close handler}{wxcloseevent} for the window, providing an opportunity for the window to
263choose whether to destroy the window.
264
265The close handler should check whether the window is being deleted forcibly,
266using \helpref{wxCloseEvent::GetForce}{wxcloseeventgetforce}, in which case it should
267destroy the window using \helpref{wxWindow::Destroy}{wxwindowdestroy}.
268
269Applies to managed windows (wxFrame and wxDialog classes) only.
270
271{\it Note} that calling Close does not guarantee that the window will be destroyed; but it
272provides a way to simulate a manual close of a window, which may or may not be implemented by
273destroying the window. The default implementation of wxDialog::OnCloseWindow does not
274necessarily delete the dialog, since it will simply simulate an wxID\_CANCEL event which
275itself only hides the dialog.
276
277To guarantee that the window will be destroyed, call \helpref{wxWindow::Destroy}{wxwindowdestroy} instead.
278
279\wxheading{See also}
280
281\helpref{Window deletion overview}{windowdeletionoverview},\rtfsp
282\helpref{wxWindow::OnCloseWindow}{wxwindowonclosewindow},\rtfsp
283\helpref{wxWindow::Destroy}{wxwindowdestroy},\rtfsp
284\helpref{wxCloseEvent}{wxcloseevent}
285
286\membersection{wxWindow::ConvertDialogToPixels}\label{wxwindowconvertdialogtopixels}
287
288\func{wxPoint}{ConvertDialogToPixels}{\param{const wxPoint\&}{ pt}}
289
290\func{wxSize}{ConvertDialogToPixels}{\param{const wxSize\&}{ sz}}
291
292Converts a point or size from dialog units to pixels.
293
294For the x dimension, the dialog units are multiplied by the average character width
295and then divided by 4.
296
297For the y dimension, the dialog units are multiplied by the average character height
298and then divided by 8.
299
300\wxheading{Remarks}
301
302Dialog units are used for maintaining a dialog's proportions even if the font changes.
303Dialogs created using Dialog Editor optionally use dialog units.
304
305You can also use these functions programmatically. A convenience macro is defined:
306
307{\small
308\begin{verbatim}
309#define wxDLG_UNIT(parent, pt) parent->ConvertDialogToPixels(pt)
310\end{verbatim}
311}
312
313\wxheading{See also}
314
315\helpref{wxWindow::ConvertPixelsToDialog}{wxwindowconvertpixelstodialog}
316
317\pythonnote{In place of a single overloaded method name, wxPython
318implements the following methods:\par
319\indented{2cm}{\begin{twocollist}
320\twocolitem{{\bf ConvertDialogPointToPixels(point)}}{Accepts and returns a wxPoint}
321\twocolitem{{\bf ConvertDialogSizeToPixels(size)}}{Accepts and returns a wxSize}
322\end{twocollist}}
323
324Additionally, the following helper functions are defined:\par
325\indented{2cm}{\begin{twocollist}
326\twocolitem{{\bf wxDLG\_PNT(win, point)}}{Converts a wxPoint from dialog
327units to pixels}
328\twocolitem{{\bf wxDLG\_SZE(win, size)}}{Converts a wxSize from dialog
329units to pixels}
330\end{twocollist}}
331}
332
333
334\membersection{wxWindow::ConvertPixelsToDialog}\label{wxwindowconvertpixelstodialog}
335
336\func{wxPoint}{ConvertPixelsToDialog}{\param{const wxPoint\&}{ pt}}
337
338\func{wxSize}{ConvertPixelsToDialog}{\param{const wxSize\&}{ sz}}
339
340Converts a point or size from pixels to dialog units.
341
342For the x dimension, the pixels are multiplied by 4 and then divided by the average
343character width.
344
345For the y dimension, the pixels are multipled by 8 and then divided by the average
346character height.
347
348\wxheading{Remarks}
349
350Dialog units are used for maintaining a dialog's proportions even if the font changes.
351Dialogs created using Dialog Editor optionally use dialog units.
352
353\wxheading{See also}
354
355\helpref{wxWindow::ConvertDialogToPixels}{wxwindowconvertdialogtopixels}
356
357
358\pythonnote{In place of a single overloaded method name, wxPython
359implements the following methods:\par
360\indented{2cm}{\begin{twocollist}
361\twocolitem{{\bf ConvertDialogPointToPixels(point)}}{Accepts and returns a wxPoint}
362\twocolitem{{\bf ConvertDialogSizeToPixels(size)}}{Accepts and returns a wxSize}
363\end{twocollist}}
364}
365
366\membersection{wxWindow::Destroy}\label{wxwindowdestroy}
367
368\func{virtual bool}{Destroy}{\void}
369
370Destroys the window safely. Use this function instead of the delete operator, since
371different window classes can be destroyed differently. Frames and dialogs
372are not destroyed immediately when this function is called - they are added
373to a list of windows to be deleted on idle time, when all the window's events
374have been processed. This prevents problems with events being sent to non-existant
375windows.
376
377\wxheading{Return value}
378
379TRUE if the window has either been successfully deleted, or it has been added
380to the list of windows pending real deletion.
381
382\membersection{wxWindow::DestroyChildren}
383
384\func{virtual void}{DestroyChildren}{\void}
385
386Destroys all children of a window. Called automatically by the destructor.
387
388\membersection{wxWindow::DragAcceptFiles}\label{wxwindowdragacceptfiles}
389
390\func{virtual void}{DragAcceptFiles}{\param{bool}{ accept}}
391
392Enables or disables elibility for drop file events (OnDropFiles).
393
394\wxheading{Parameters}
395
396\docparam{accept}{If TRUE, the window is eligible for drop file events. If FALSE, the window
397will not accept drop file events.}
398
399\wxheading{Remarks}
400
401Windows only.
402
403\wxheading{See also}
404
405\helpref{wxWindow::OnDropFiles}{wxwindowondropfiles}
406
407\membersection{wxWindow::Enable}\label{wxwindowenable}
408
409\func{virtual void}{Enable}{\param{bool}{ enable}}
410
411Enable or disable the window for user input.
412
413\wxheading{Parameters}
414
415\docparam{enable}{If TRUE, enables the window for input. If FALSE, disables the window.}
416
417\wxheading{See also}
418
419\helpref{wxWindow::IsEnabled}{wxwindowisenabled}
420
421\membersection{wxWindow::FindFocus}\label{wxwindowfindfocus}
422
423\func{static wxWindow*}{FindFocus}{\void}
424
425Finds the window or control which currently has the keyboard focus.
426
427\wxheading{Remarks}
428
429Note that this is a static function, so it can be called without needing a wxWindow pointer.
430
431\wxheading{See also}
432
433\helpref{wxWindow::SetFocus}{wxwindowsetfocus}
434
435\membersection{wxWindow::FindWindow}\label{wxwindowfindwindow}
436
437\func{wxWindow*}{FindWindow}{\param{long}{ id}}
438
439Find a child of this window, by identifier.
440
441\func{wxWindow*}{FindWindow}{\param{const wxString\&}{ name}}
442
443Find a child of this window, by name.
444
445\pythonnote{In place of a single overloaded method name, wxPython
446implements the following methods:\par
447\indented{2cm}{\begin{twocollist}
448\twocolitem{{\bf FindWindowById(id)}}{Accepts an integer}
449\twocolitem{{\bf FindWindowByName(name)}}{Accepts a string}
450\end{twocollist}}
451}
452
453\membersection{wxWindow::Fit}\label{wxwindowfit}
454
455\func{virtual void}{Fit}{\void}
456
457Sizes the window so that it fits around its subwindows. This function won't do
458anything if there are no subwindows.
459
460\membersection{wxWindow::GetBackgroundColour}\label{wxwindowgetbackgroundcolour}
461
462\constfunc{virtual wxColour}{GetBackgroundColour}{\void}
463
464Returns the background colour of the window.
465
466\wxheading{See also}
467
468\helpref{wxWindow::SetBackgroundColour}{wxwindowsetbackgroundcolour},\rtfsp
469\helpref{wxWindow::SetForegroundColour}{wxwindowsetforegroundcolour},\rtfsp
470\helpref{wxWindow::GetForegroundColour}{wxwindowgetforegroundcolour},\rtfsp
471\helpref{wxWindow::OnEraseBackground}{wxwindowonerasebackground}
472
473\membersection{wxWindow::GetBestSize}\label{wxwindowgetbestsize}
474
475\constfunc{virtual wxSize}{GetBestSize}{\void}
476
477This functions returns the best acceptable minimal size for the window. For
478example, for a static control, it will be the minimal size such that the
479control label is not truncated. For windows containing subwindows (typically
480\helpref{wxPanel}{wxpanel}), the size returned by this function will be the
481same as the size the window would have had after calling
482\helpref{Fit}{wxwindowfit}.
483
484\membersection{wxWindow::GetCharHeight}
485
486\constfunc{virtual int}{GetCharHeight}{\void}
487
488Returns the character height for this window.
489
490\membersection{wxWindow::GetCharWidth}
491
492\constfunc{virtual int}{GetCharWidth}{\void}
493
494Returns the average character width for this window.
495
496\membersection{wxWindow::GetChildren}
497
498\func{wxList\&}{GetChildren}{\void}
499
500Returns a reference to the list of the window's children.
501
502\membersection{wxWindow::GetClientSize}\label{wxwindowgetclientsize}
503
504\constfunc{virtual void}{GetClientSize}{\param{int* }{width}, \param{int* }{height}}
505
506\constfunc{virtual wxSize}{GetClientSize}{\void}
507
508This gets the size of the window `client area' in pixels. The client area is the
509area which may be drawn on by the programmer, excluding title bar, border etc.
510
511\wxheading{Parameters}
512
513\docparam{width}{Receives the client width in pixels.}
514
515\docparam{height}{Receives the client height in pixels.}
516
517\pythonnote{In place of a single overloaded method name, wxPython
518implements the following methods:\par
519\indented{2cm}{\begin{twocollist}
520\twocolitem{{\bf wxGetClientSizeTuple()}}{Returns a 2-tuple of (width, height)}
521\twocolitem{{\bf wxGetClientSize()}}{Returns a wxSize object}
522\end{twocollist}}
523}
524
525\membersection{wxWindow::GetConstraints}\label{wxwindowgetconstraints}
526
527\constfunc{wxLayoutConstraints*}{GetConstraints}{\void}
528
529Returns a pointer to the window's layout constraints, or NULL if there are none.
530
531\membersection{wxWindow::GetDropTarget}\label{wxwindowgetdroptarget}
532
533\constfunc{wxDropTarget*}{GetDropTarget}{\void}
534
535Returns the associated drop target, which may be NULL.
536
537\wxheading{See also}
538
539\helpref{wxWindow::SetDropTarget}{wxwindowsetdroptarget},
540\helpref{Drag and drop overview}{wxdndoverview}
541
542\membersection{wxWindow::GetEventHandler}\label{wxwindowgeteventhandler}
543
544\constfunc{wxEvtHandler*}{GetEventHandler}{\void}
545
546Returns the event handler for this window. By default, the window is its
547own event handler.
548
549\wxheading{See also}
550
551\helpref{wxWindow::SetEventHandler}{wxwindowseteventhandler},\rtfsp
552\helpref{wxWindow::PushEventHandler}{wxwindowpusheventhandler},\rtfsp
553\helpref{wxWindow::PopEventHandler}{wxwindowpusheventhandler},\rtfsp
554\helpref{wxEvtHandler::ProcessEvent}{wxevthandlerprocessevent},\rtfsp
555\helpref{wxEvtHandler}{wxevthandler}\rtfsp
556
557\membersection{wxWindow::GetExtraStyle}\label{wxwindowgetextrastyle}
558
559\constfunc{long}{GetExtraStyle}{\void}
560
561Returns the extra style bits for the window.
562
563\membersection{wxWindow::GetFont}\label{wxwindowgetfont}
564
565\constfunc{wxFont\&}{GetFont}{\void}
566
567Returns a reference to the font for this window.
568
569\wxheading{See also}
570
571\helpref{wxWindow::SetFont}{wxwindowsetfont}
572
573\membersection{wxWindow::GetForegroundColour}\label{wxwindowgetforegroundcolour}
574
575\func{virtual wxColour}{GetForegroundColour}{\void}
576
577Returns the foreground colour of the window.
578
579\wxheading{Remarks}
580
581The interpretation of foreground colour is open to interpretation according
582to the window class; it may be the text colour or other colour, or it may not
583be used at all.
584
585\wxheading{See also}
586
587\helpref{wxWindow::SetForegroundColour}{wxwindowsetforegroundcolour},\rtfsp
588\helpref{wxWindow::SetBackgroundColour}{wxwindowsetbackgroundcolour},\rtfsp
589\helpref{wxWindow::GetBackgroundColour}{wxwindowgetbackgroundcolour}
590
591\membersection{wxWindow::GetGrandParent}
592
593\constfunc{wxWindow*}{GetGrandParent}{\void}
594
595Returns the grandparent of a window, or NULL if there isn't one.
596
597\membersection{wxWindow::GetHandle}
598
599\constfunc{void*}{GetHandle}{\void}
600
601Returns the platform-specific handle of the physical window. Cast it to an appropriate
602handle, such as {\bf HWND} for Windows, {\bf Widget} for Motif or {\bf GtkWidget} for GTK.
603
604\pythonnote{This method will return an integer in wxPython.}
605
606\membersection{wxWindow::GetId}\label{wxwindowgetid}
607
608\constfunc{int}{GetId}{\void}
609
610Returns the identifier of the window.
611
612\wxheading{Remarks}
613
614Each window has an integer identifier. If the application has not provided one
615(or the default Id -1) an unique identifier with a negative value will be generated.
616
617\wxheading{See also}
618
619\helpref{wxWindow::SetId}{wxwindowsetid}\rtfsp
620\helpref{Window identifiers}{windowids}
621
622\membersection{wxWindow::GetPosition}
623
624\constfunc{virtual void}{GetPosition}{\param{int* }{x}, \param{int* }{y}}
625
626This gets the position of the window in pixels, relative to the parent window or
627if no parent, relative to the whole display.
628
629\wxheading{Parameters}
630
631\docparam{x}{Receives the x position of the window.}
632
633\docparam{y}{Receives the y position of the window.}
634
635\pythonnote{In place of a single overloaded method name, wxPython
636implements the following methods:\par
637\indented{2cm}{\begin{twocollist}
638\twocolitem{{\bf GetPosition()}}{Returns a wxPoint}
639\twocolitem{{\bf GetPositionTuple()}}{Returns a tuple (x, y)}
640\end{twocollist}}
641}
642
643\membersection{wxWindow::GetLabel}
644
645\constfunc{virtual wxString }{GetLabel}{\void}
646
647Generic way of getting a label from any window, for
648identification purposes.
649
650\wxheading{Remarks}
651
652The interpretation of this function differs from class to class.
653For frames and dialogs, the value returned is the title. For buttons or static text controls, it is
654the button text. This function can be useful for meta-programs (such as testing
655tools or special-needs access programs) which need to identify windows
656by name.
657
658\membersection{wxWindow::GetName}\label{wxwindowgetname}
659
660\constfunc{virtual wxString }{GetName}{\void}
661
662Returns the window's name.
663
664\wxheading{Remarks}
665
666This name is not guaranteed to be unique; it is up to the programmer to supply an appropriate
667name in the window constructor or via \helpref{wxWindow::SetName}{wxwindowsetname}.
668
669\wxheading{See also}
670
671\helpref{wxWindow::SetName}{wxwindowsetname}
672
673\membersection{wxWindow::GetParent}
674
675\constfunc{virtual wxWindow*}{GetParent}{\void}
676
677Returns the parent of the window, or NULL if there is no parent.
678
679\membersection{wxWindow::GetRect}\label{wxwindowgetrect}
680
681\constfunc{virtual wxRect}{GetRect}{\void}
682
683Returns the size and position of the window as a \helpref{wxRect}{wxrect} object.
684
685\membersection{wxWindow::GetScrollThumb}\label{wxwindowgetscrollthumb}
686
687\func{virtual int}{GetScrollThumb}{\param{int }{orientation}}
688
689Returns the built-in scrollbar thumb size.
690
691\wxheading{See also}
692
693\helpref{wxWindow::SetScrollbar}{wxwindowsetscrollbar}
694
695\membersection{wxWindow::GetScrollPos}\label{wxwindowgetscrollpos}
696
697\func{virtual int}{GetScrollPos}{\param{int }{orientation}}
698
699Returns the built-in scrollbar position.
700
701\wxheading{See also}
702
703See \helpref{wxWindow::SetScrollbar}{wxwindowsetscrollbar}
704
705\membersection{wxWindow::GetScrollRange}\label{wxwindowgetscrollrange}
706
707\func{virtual int}{GetScrollRange}{\param{int }{orientation}}
708
709Returns the built-in scrollbar range.
710
711\wxheading{See also}
712
713\helpref{wxWindow::SetScrollbar}{wxwindowsetscrollbar}
714
715\membersection{wxWindow::GetSize}\label{wxwindowgetsize}
716
717\constfunc{virtual void}{GetSize}{\param{int* }{width}, \param{int* }{height}}
718
719\constfunc{virtual wxSize}{GetSize}{\void}
720
721This gets the size of the entire window in pixels.
722
723\wxheading{Parameters}
724
725\docparam{width}{Receives the window width.}
726
727\docparam{height}{Receives the window height.}
728
729\pythonnote{In place of a single overloaded method name, wxPython
730implements the following methods:\par
731\indented{2cm}{\begin{twocollist}
732\twocolitem{{\bf GetSize()}}{Returns a wxSize}
733\twocolitem{{\bf GetSizeTuple()}}{Returns a 2-tuple (width, height)}
734\end{twocollist}}
735}
736
737\membersection{wxWindow::GetTextExtent}
738
739\constfunc{virtual void}{GetTextExtent}{\param{const wxString\& }{string}, \param{int* }{x}, \param{int* }{y},
740 \param{int* }{descent = NULL}, \param{int* }{externalLeading = NULL},
741 \param{const wxFont* }{font = NULL}, \param{bool}{ use16 = FALSE}}
742
743Gets the dimensions of the string as it would be drawn on the
744window with the currently selected font.
745
746\wxheading{Parameters}
747
748\docparam{string}{String whose extent is to be measured.}
749
750\docparam{x}{Return value for width.}
751
752\docparam{y}{Return value for height.}
753
754\docparam{descent}{Return value for descent (optional).}
755
756\docparam{externalLeading}{Return value for external leading (optional).}
757
758\docparam{font}{Font to use instead of the current window font (optional).}
759
760\docparam{use16}{If TRUE, {\it string} contains 16-bit characters. The default is FALSE.}
761
762
763\pythonnote{In place of a single overloaded method name, wxPython
764implements the following methods:\par
765\indented{2cm}{\begin{twocollist}
766\twocolitem{{\bf GetTextExtent(string)}}{Returns a 2-tuple, (width, height)}
767\twocolitem{{\bf GetFullTextExtent(string, font=NULL)}}{Returns a
7684-tuple, (width, height, descent, externalLeading) }
769\end{twocollist}}
770}
771
772
773\membersection{wxWindow::GetTitle}\label{wxwindowgettitle}
774
775\func{virtual wxString}{GetTitle}{\void}
776
777Gets the window's title. Applicable only to frames and dialogs.
778
779\wxheading{See also}
780
781\helpref{wxWindow::SetTitle}{wxwindowsettitle}
782
783\membersection{wxWindow::GetUpdateRegion}\label{wxwindowgetupdateregion}
784
785\constfunc{virtual wxRegion}{GetUpdateRegion}{\void}
786
787Returns the region specifying which parts of the window have been damaged. Should
788only be called within an \helpref{OnPaint}{wxwindowonpaint} event handler.
789
790\wxheading{See also}
791
792\helpref{wxRegion}{wxregion}, \helpref{wxRegionIterator}{wxregioniterator}, \helpref{wxWindow::OnPaint}{wxwindowonpaint}
793
794\membersection{wxWindow::GetValidator}\label{wxwindowgetvalidator}
795
796\constfunc{wxValidator*}{GetValidator}{\void}
797
798Returns a pointer to the current validator for the window, or NULL if there is none.
799
800\membersection{wxWindow::GetWindowStyleFlag}\label{wxwindowgetwindowstyleflag}
801
802\constfunc{long}{GetWindowStyleFlag}{\void}
803
804Gets the window style that was passed to the constructor or {\bf Create}
805method. {\bf GetWindowStyle()} is another name for the same function.
806
807\membersection{wxWindow::InitDialog}\label{wxwindowinitdialog}
808
809\func{void}{InitDialog}{\void}
810
811Sends an \helpref{wxWindow::OnInitDialog}{wxwindowoninitdialog} event, which
812in turn transfers data to the dialog via validators.
813
814\wxheading{See also}
815
816\helpref{wxWindow::OnInitDialog}{wxwindowoninitdialog}
817
818\membersection{wxWindow::IsEnabled}\label{wxwindowisenabled}
819
820\constfunc{virtual bool}{IsEnabled}{\void}
821
822Returns TRUE if the window is enabled for input, FALSE otherwise.
823
824\wxheading{See also}
825
826\helpref{wxWindow::Enable}{wxwindowenable}
827
828\membersection{wxWindow:IsExposed}\label{wxwindowisexposed}
829
830\constfunc{bool}{IsExposed}{\param{int }{x}, \param{int }{y}}
831
832\constfunc{bool}{IsExposed}{\param{wxPoint }{\&pt}}
833
834\constfunc{bool}{IsExposed}{\param{int }{x}, \param{int }{y}, \param{int }{w}, \param{int }{h}}
835
836\constfunc{bool}{IsExposed}{\param{wxRect }{\&rect}}
837
838Returns TRUE if the given point or rectange area has been exposed since the
839last repaint. Call this in an paint event handler to optimize redrawing by
840only redrawing those areas, which have been exposed.
841
842\pythonnote{In place of a single overloaded method name, wxPython
843implements the following methods:\par
844\indented{2cm}{\begin{twocollist}
845\twocolitem{{\bf IsExposed(x,y, w=0,h=0}}{}
846\twocolitem{{\bf IsExposedPoint(pt)}}{}
847\twocolitem{{\bf IsExposedRect(rect)}}{}
848\end{twocollist}}}
849
850\membersection{wxWindow::IsRetained}\label{wxwindowisretained}
851
852\constfunc{virtual bool}{IsRetained}{\void}
853
854Returns TRUE if the window is retained, FALSE otherwise.
855
856\wxheading{Remarks}
857
858Retained windows are only available on X platforms.
859
860\membersection{wxWindow::IsShown}\label{wxwindowisshown}
861
862\constfunc{virtual bool}{IsShown}{\void}
863
864Returns TRUE if the window is shown, FALSE if it has been hidden.
865
866\membersection{wxWindow::IsTopLevel}\label{wxwindowistoplevel}
867
868\constfunc{bool}{IsTopLevel}{\void}
869
870Returns TRUE if the given window is a top-level one. Currently all frames and
871dialogs are considered to be top-level windows (even if they have a parent
872window).
873
874\membersection{wxWindow::Layout}\label{wxwindowlayout}
875
876\func{void}{Layout}{\void}
877
878Invokes the constraint-based layout algorithm or the sizer-based algorithm
879for this window.
880
881See \helpref{wxWindow::SetAutoLayout}{wxwindowsetautolayout} on when
882this function gets called automatically using auto layout.
883
884\membersection{wxWindow::LoadFromResource}\label{wxwindowloadfromresource}
885
886\func{virtual bool}{LoadFromResource}{\param{wxWindow* }{parent},\rtfsp
887\param{const wxString\& }{resourceName}, \param{const wxResourceTable* }{resourceTable = NULL}}
888
889Loads a panel or dialog from a resource file.
890
891\wxheading{Parameters}
892
893\docparam{parent}{Parent window.}
894
895\docparam{resourceName}{The name of the resource to load.}
896
897\docparam{resourceTable}{The resource table to load it from. If this is NULL, the
898default resource table will be used.}
899
900\wxheading{Return value}
901
902TRUE if the operation succeeded, otherwise FALSE.
903
904\membersection{wxWindow::Lower}\label{wxwindowlower}
905
906\func{void}{Lower}{\void}
907
908Lowers the window to the bottom of the window hierarchy if it is a managed window (dialog
909or frame).
910
911\membersection{wxWindow::MakeModal}\label{wxwindowmakemodal}
912
913\func{virtual void}{MakeModal}{\param{bool }{flag}}
914
915Disables all other windows in the application so that
916the user can only interact with this window. (This function
917is not implemented anywhere).
918
919\wxheading{Parameters}
920
921\docparam{flag}{If TRUE, this call disables all other windows in the application so that
922the user can only interact with this window. If FALSE, the effect is reversed.}
923
924\membersection{wxWindow::Move}\label{wxwindowmove}
925
926\func{void}{Move}{\param{int}{ x}, \param{int}{ y}}
927
928\func{void}{Move}{\param{const wxPoint\&}{ pt}}
929
930Moves the window to the given position.
931
932\wxheading{Parameters}
933
934\docparam{x}{Required x position.}
935
936\docparam{y}{Required y position.}
937
938\docparam{pt}{\helpref{wxPoint}{wxpoint} object representing the position.}
939
940\wxheading{Remarks}
941
942Implementations of SetSize can also implicitly implement the
943wxWindow::Move function, which is defined in the base wxWindow class
944as the call:
945
946\begin{verbatim}
947 SetSize(x, y, -1, -1, wxSIZE_USE_EXISTING);
948\end{verbatim}
949
950\wxheading{See also}
951
952\helpref{wxWindow::SetSize}{wxwindowsetsize}
953
954\pythonnote{In place of a single overloaded method name, wxPython
955implements the following methods:\par
956\indented{2cm}{\begin{twocollist}
957\twocolitem{{\bf Move(point)}}{Accepts a wxPoint}
958\twocolitem{{\bf MoveXY(x, y)}}{Accepts a pair of integers}
959\end{twocollist}}
960}
961
962\membersection{wxWindow::OnActivate}\label{wxwindowonactivate}
963
964\func{void}{OnActivate}{\param{wxActivateEvent\&}{ event}}
965
966Called when a window is activated or deactivated.
967
968\wxheading{Parameters}
969
970\docparam{event}{Object containing activation information.}
971
972\wxheading{Remarks}
973
974If the window is being activated, \helpref{wxActivateEvent::GetActive}{wxactivateeventgetactive} returns TRUE,
975otherwise it returns FALSE (it is being deactivated).
976
977\wxheading{See also}
978
979\helpref{wxActivateEvent}{wxactivateevent},\rtfsp
980\helpref{Event handling overview}{eventhandlingoverview}
981
982\membersection{wxWindow::OnChar}\label{wxwindowonchar}
983
984\func{void}{OnChar}{\param{wxKeyEvent\&}{ event}}
985
986Called when the user has pressed a key that is not a modifier (SHIFT, CONTROL or ALT).
987
988\wxheading{Parameters}
989
990\docparam{event}{Object containing keypress information. See \helpref{wxKeyEvent}{wxkeyevent} for
991details about this class.}
992
993\wxheading{Remarks}
994
995This member function is called in response to a keypress. To intercept this event,
996use the EVT\_CHAR macro in an event table definition. Your {\bf OnChar} handler may call this
997default function to achieve default keypress functionality.
998
999Note that the ASCII values do not have explicit key codes: they are passed as ASCII
1000values.
1001
1002Note that not all keypresses can be intercepted this way. If you wish to intercept modifier
1003keypresses, then you will need to use \helpref{wxWindow::OnKeyDown}{wxwindowonkeydown} or
1004\helpref{wxWindow::OnKeyUp}{wxwindowonkeyup}.
1005
1006Most, but not all, windows allow keypresses to be intercepted.
1007
1008\wxheading{See also}
1009
1010\helpref{wxWindow::OnKeyDown}{wxwindowonkeydown}, \helpref{wxWindow::OnKeyUp}{wxwindowonkeyup},\rtfsp
1011\helpref{wxKeyEvent}{wxkeyevent}, \helpref{wxWindow::OnCharHook}{wxwindowoncharhook},\rtfsp
1012\helpref{Event handling overview}{eventhandlingoverview}
1013
1014\membersection{wxWindow::OnCharHook}\label{wxwindowoncharhook}
1015
1016\func{void}{OnCharHook}{\param{wxKeyEvent\&}{ event}}
1017
1018This member is called to allow the window to intercept keyboard events
1019before they are processed by child windows.
1020
1021\wxheading{Parameters}
1022
1023\docparam{event}{Object containing keypress information. See \helpref{wxKeyEvent}{wxkeyevent} for
1024details about this class.}
1025
1026\wxheading{Remarks}
1027
1028This member function is called in response to a keypress, if the window is active. To intercept this event,
1029use the EVT\_CHAR\_HOOK macro in an event table definition. If you do not process a particular
1030keypress, call \helpref{wxEvent::Skip}{wxeventskip} to allow default processing.
1031
1032An example of using this function is in the implementation of escape-character processing for wxDialog,
1033where pressing ESC dismisses the dialog by {\bf OnCharHook} 'forging' a cancel button press event.
1034
1035Note that the ASCII values do not have explicit key codes: they are passed as ASCII
1036values.
1037
1038This function is only relevant to top-level windows (frames and dialogs), and under
1039Windows only. Under GTK the normal EVT\_CHAR\_ event has the functionality, i.e.
1040you can intercepts it and if you don't call \helpref{wxEvent::Skip}{wxeventskip}
1041the window won't get the event.
1042
1043\wxheading{See also}
1044
1045\helpref{wxKeyEvent}{wxkeyevent}, \helpref{wxWindow::OnCharHook}{wxwindowoncharhook},\rtfsp
1046\helpref{wxApp::OnCharHook}{wxapponcharhook},\rtfsp
1047\helpref{Event handling overview}{eventhandlingoverview}
1048
1049\membersection{wxWindow::OnCommand}\label{wxwindowoncommand}
1050
1051\func{virtual void}{OnCommand}{\param{wxEvtHandler\& }{object}, \param{wxCommandEvent\& }{event}}
1052
1053This virtual member function is called if the control does not handle the command event.
1054
1055\wxheading{Parameters}
1056
1057\docparam{object}{Object receiving the command event.}
1058
1059\docparam{event}{Command event}
1060
1061\wxheading{Remarks}
1062
1063This virtual function is provided mainly for backward compatibility. You can also intercept commands
1064from child controls by using an event table, with identifiers or identifier ranges to identify
1065the control(s) in question.
1066
1067\wxheading{See also}
1068
1069\helpref{wxCommandEvent}{wxcommandevent},\rtfsp
1070\helpref{Event handling overview}{eventhandlingoverview}
1071
1072\membersection{wxWindow::OnClose}\label{wxwindowonclose}
1073
1074\func{virtual bool}{OnClose}{\void}
1075
1076Called when the user has tried to close a a frame
1077or dialog box using the window manager (X) or system menu (Windows).
1078
1079{\bf Note:} This is an obsolete function.
1080It is superceded by the \helpref{wxWindow::OnCloseWindow}{wxwindowonclosewindow} event
1081handler.
1082
1083\wxheading{Return value}
1084
1085If TRUE is returned by OnClose, the window will be deleted by the system, otherwise the
1086attempt will be ignored. Do not delete the window from within this handler, although
1087you may delete other windows.
1088
1089\wxheading{See also}
1090
1091\helpref{Window deletion overview}{windowdeletionoverview},\rtfsp
1092\helpref{wxWindow::Close}{wxwindowclose},\rtfsp
1093\helpref{wxWindow::OnCloseWindow}{wxwindowonclosewindow},\rtfsp
1094\helpref{wxCloseEvent}{wxcloseevent}
1095
1096\membersection{wxWindow::OnCloseWindow}\label{wxwindowonclosewindow}
1097
1098\func{void}{OnCloseWindow}{\param{wxCloseEvent\& }{event}}
1099
1100This is an event handler function called when the user has tried to close a a frame
1101or dialog box using the window manager (X) or system menu (Windows). It is
1102called via the \helpref{wxWindow::Close}{wxwindowclose} function, so
1103that the application can also invoke the handler programmatically.
1104
1105Use the EVT\_CLOSE event table macro to handle close events.
1106
1107You should check whether the application is forcing the deletion of the window
1108using \helpref{wxCloseEvent::GetForce}{wxcloseeventgetforce}. If this is TRUE,
1109destroy the window using \helpref{wxWindow::Destroy}{wxwindowdestroy}.
1110If not, it is up to you whether you respond by destroying the window.
1111
1112(Note: GetForce is now superceded by CanVeto. So to test whether forced destruction of
1113the window is required, test for the negative of CanVeto. If CanVeto returns FALSE,
1114it is not possible to skip window deletion.)
1115
1116If you don't destroy the window, you should call \helpref{wxCloseEvent::Veto}{wxcloseeventveto} to
1117let the calling code know that you did not destroy the window. This allows the \helpref{wxWindow::Close}{wxwindowclose} function
1118to return TRUE or FALSE depending on whether the close instruction was honoured or not.
1119
1120\wxheading{Remarks}
1121
1122The \helpref{wxWindow::OnClose}{wxwindowonclose} virtual function remains
1123for backward compatibility with earlier versions of wxWindows. The
1124default {\bf OnCloseWindow} handler for wxFrame and wxDialog will call {\bf OnClose},
1125destroying the window if it returns TRUE or if the close is being forced.
1126
1127\wxheading{See also}
1128
1129\helpref{Window deletion overview}{windowdeletionoverview},\rtfsp
1130\helpref{wxWindow::Close}{wxwindowclose},\rtfsp
1131\helpref{wxWindow::OnClose}{wxwindowonclose},\rtfsp
1132\helpref{wxWindow::Destroy}{wxwindowdestroy},\rtfsp
1133\helpref{wxCloseEvent}{wxcloseevent},\rtfsp
1134\helpref{wxApp::OnQueryEndSession}{wxapponqueryendsession},\rtfsp
1135\helpref{wxApp::OnEndSession}{wxapponendsession}
1136
1137\membersection{wxWindow::OnDropFiles}\label{wxwindowondropfiles}
1138
1139\func{void}{OnDropFiles}{\param{wxDropFilesEvent\&}{ event}}
1140
1141Called when files have been dragged from the file manager to the window.
1142
1143\wxheading{Parameters}
1144
1145\docparam{event}{Drop files event. For more information, see \helpref{wxDropFilesEvent}{wxdropfilesevent}.}
1146
1147\wxheading{Remarks}
1148
1149The window must have previously been enabled for dropping by calling
1150\rtfsp\helpref{wxWindow::DragAcceptFiles}{wxwindowdragacceptfiles}.
1151
1152This event is only generated under Windows.
1153
1154To intercept this event, use the EVT\_DROP\_FILES macro in an event table definition.
1155
1156\wxheading{See also}
1157
1158\helpref{wxDropFilesEvent}{wxdropfilesevent}, \helpref{wxWindow::DragAcceptFiles}{wxwindowdragacceptfiles},\rtfsp
1159\helpref{Event handling overview}{eventhandlingoverview}
1160
1161\membersection{wxWindow::OnEraseBackground}\label{wxwindowonerasebackground}
1162
1163\func{void}{OnEraseBackground}{\param{wxEraseEvent\&}{ event}}
1164
1165Called when the background of the window needs to be erased.
1166
1167\wxheading{Parameters}
1168
1169\docparam{event}{Erase background event. For more information, see \helpref{wxEraseEvent}{wxeraseevent}.}
1170
1171\wxheading{Remarks}
1172
1173This event is only generated under Windows. It is therefore recommended that
1174you set the text background colour explicitly in order to prevent flicker.
1175The default background colour under GTK is grey.
1176
1177To intercept this event, use the EVT\_ERASE\_BACKGROUND macro in an event table definition.
1178
1179\wxheading{See also}
1180
1181\helpref{wxEraseEvent}{wxeraseevent}, \helpref{Event handling overview}{eventhandlingoverview}
1182
1183\membersection{wxWindow::OnKeyDown}\label{wxwindowonkeydown}
1184
1185\func{void}{OnKeyDown}{\param{wxKeyEvent\&}{ event}}
1186
1187Called when the user has pressed a key, before it is translated into an ASCII value using other
1188modifier keys that might be pressed at the same time.
1189
1190\wxheading{Parameters}
1191
1192\docparam{event}{Object containing keypress information. See \helpref{wxKeyEvent}{wxkeyevent} for
1193details about this class.}
1194
1195\wxheading{Remarks}
1196
1197This member function is called in response to a key down event. To intercept this event,
1198use the EVT\_KEY\_DOWN macro in an event table definition. Your {\bf OnKeyDown} handler may call this
1199default function to achieve default keypress functionality.
1200
1201Note that not all keypresses can be intercepted this way. If you wish to intercept special
1202keys, such as shift, control, and function keys, then you will need to use \helpref{wxWindow::OnKeyDown}{wxwindowonkeydown} or
1203\helpref{wxWindow::OnKeyUp}{wxwindowonkeyup}.
1204
1205Most, but not all, windows allow keypresses to be intercepted.
1206
1207\wxheading{See also}
1208
1209\helpref{wxWindow::OnChar}{wxwindowonchar}, \helpref{wxWindow::OnKeyUp}{wxwindowonkeyup},\rtfsp
1210\helpref{wxKeyEvent}{wxkeyevent}, \helpref{wxWindow::OnCharHook}{wxwindowoncharhook},\rtfsp
1211\helpref{Event handling overview}{eventhandlingoverview}
1212
1213\membersection{wxWindow::OnKeyUp}\label{wxwindowonkeyup}
1214
1215\func{void}{OnKeyUp}{\param{wxKeyEvent\&}{ event}}
1216
1217Called when the user has released a key.
1218
1219\wxheading{Parameters}
1220
1221\docparam{event}{Object containing keypress information. See \helpref{wxKeyEvent}{wxkeyevent} for
1222details about this class.}
1223
1224\wxheading{Remarks}
1225
1226This member function is called in response to a key up event. To intercept this event,
1227use the EVT\_KEY\_UP macro in an event table definition. Your {\bf OnKeyUp} handler may call this
1228default function to achieve default keypress functionality.
1229
1230Note that not all keypresses can be intercepted this way. If you wish to intercept special
1231keys, such as shift, control, and function keys, then you will need to use \helpref{wxWindow::OnKeyDown}{wxwindowonkeydown} or
1232\helpref{wxWindow::OnKeyUp}{wxwindowonkeyup}.
1233
1234Most, but not all, windows allow key up events to be intercepted.
1235
1236\wxheading{See also}
1237
1238\helpref{wxWindow::OnChar}{wxwindowonchar}, \helpref{wxWindow::OnKeyDown}{wxwindowonkeydown},\rtfsp
1239\helpref{wxKeyEvent}{wxkeyevent}, \helpref{wxWindow::OnCharHook}{wxwindowoncharhook},\rtfsp
1240\helpref{Event handling overview}{eventhandlingoverview}
1241
1242\membersection{wxWindow::OnKillFocus}\label{wxwindowonkillfocus}
1243
1244\func{void}{OnKillFocus}{\param{wxFocusEvent\& }{event}}
1245
1246Called when a window's focus is being killed.
1247
1248\wxheading{Parameters}
1249
1250\docparam{event}{The focus event. For more information, see \helpref{wxFocusEvent}{wxfocusevent}.}
1251
1252\wxheading{Remarks}
1253
1254To intercept this event, use the macro EVT\_KILL\_FOCUS in an event table definition.
1255
1256Most, but not all, windows respond to this event.
1257
1258\wxheading{See also}
1259
1260\helpref{wxFocusEvent}{wxfocusevent}, \helpref{wxWindow::OnSetFocus}{wxwindowonsetfocus},\rtfsp
1261\helpref{Event handling overview}{eventhandlingoverview}
1262
1263\membersection{wxWindow::OnIdle}\label{wxwindowonidle}
1264
1265\func{void}{OnIdle}{\param{wxIdleEvent\& }{event}}
1266
1267Provide this member function for any processing which needs to be done
1268when the application is idle.
1269
1270\wxheading{See also}
1271
1272\helpref{wxApp::OnIdle}{wxapponidle}, \helpref{wxIdleEvent}{wxidleevent}
1273
1274\membersection{wxWindow::OnInitDialog}\label{wxwindowoninitdialog}
1275
1276\func{void}{OnInitDialog}{\param{wxInitDialogEvent\&}{ event}}
1277
1278Default handler for the wxEVT\_INIT\_DIALOG event. Calls \helpref{wxWindow::TransferDataToWindow}{wxwindowtransferdatatowindow}.
1279
1280\wxheading{Parameters}
1281
1282\docparam{event}{Dialog initialisation event.}
1283
1284\wxheading{Remarks}
1285
1286Gives the window the default behaviour of transferring data to child controls via
1287the validator that each control has.
1288
1289\wxheading{See also}
1290
1291\helpref{wxValidator}{wxvalidator}, \helpref{wxWindow::TransferDataToWindow}{wxwindowtransferdatatowindow}
1292
1293\membersection{wxWindow::OnMenuCommand}\label{wxwindowonmenucommand}
1294
1295\func{void}{OnMenuCommand}{\param{wxCommandEvent\& }{event}}
1296
1297Called when a menu command is received from a menu bar.
1298
1299\wxheading{Parameters}
1300
1301\docparam{event}{The menu command event. For more information, see \helpref{wxCommandEvent}{wxcommandevent}.}
1302
1303\wxheading{Remarks}
1304
1305A function with this name doesn't actually exist; you can choose any member function to receive
1306menu command events, using the EVT\_COMMAND macro for individual commands or EVT\_COMMAND\_RANGE for
1307a range of commands.
1308
1309\wxheading{See also}
1310
1311\helpref{wxCommandEvent}{wxcommandevent},\rtfsp
1312\helpref{wxWindow::OnMenuHighlight}{wxwindowonmenuhighlight},\rtfsp
1313\helpref{Event handling overview}{eventhandlingoverview}
1314
1315\membersection{wxWindow::OnMenuHighlight}\label{wxwindowonmenuhighlight}
1316
1317\func{void}{OnMenuHighlight}{\param{wxMenuEvent\& }{event}}
1318
1319Called when a menu select is received from a menu bar: that is, the
1320mouse cursor is over a menu item, but the left mouse button has not been
1321pressed.
1322
1323\wxheading{Parameters}
1324
1325\docparam{event}{The menu highlight event. For more information, see \helpref{wxMenuEvent}{wxmenuevent}.}
1326
1327\wxheading{Remarks}
1328
1329You can choose any member function to receive
1330menu select events, using the EVT\_MENU\_HIGHLIGHT macro for individual menu items or EVT\_MENU\_HIGHLIGHT\_ALL macro
1331for all menu items.
1332
1333The default implementation for \helpref{wxFrame::OnMenuHighlight}{wxframeonmenuhighlight} displays help
1334text in the first field of the status bar.
1335
1336This function was known as {\bf OnMenuSelect} in earlier versions of wxWindows, but this was confusing
1337since a selection is normally a left-click action.
1338
1339\wxheading{See also}
1340
1341\helpref{wxMenuEvent}{wxmenuevent},\rtfsp
1342\helpref{wxWindow::OnMenuCommand}{wxwindowonmenucommand},\rtfsp
1343\helpref{Event handling overview}{eventhandlingoverview}
1344
1345
1346\membersection{wxWindow::OnMouseEvent}\label{wxwindowonmouseevent}
1347
1348\func{void}{OnMouseEvent}{\param{wxMouseEvent\&}{ event}}
1349
1350Called when the user has initiated an event with the
1351mouse.
1352
1353\wxheading{Parameters}
1354
1355\docparam{event}{The mouse event. See \helpref{wxMouseEvent}{wxmouseevent} for
1356more details.}
1357
1358\wxheading{Remarks}
1359
1360Most, but not all, windows respond to this event.
1361
1362To intercept this event, use the EVT\_MOUSE\_EVENTS macro in an event table definition, or individual
1363mouse event macros such as EVT\_LEFT\_DOWN.
1364
1365\wxheading{See also}
1366
1367\helpref{wxMouseEvent}{wxmouseevent},\rtfsp
1368\helpref{Event handling overview}{eventhandlingoverview}
1369
1370\membersection{wxWindow::OnMove}\label{wxwindowonmove}
1371
1372\func{void}{OnMove}{\param{wxMoveEvent\& }{event}}
1373
1374Called when a window is moved.
1375
1376\wxheading{Parameters}
1377
1378\docparam{event}{The move event. For more information, see \helpref{wxMoveEvent}{wxmoveevent}.}
1379
1380\wxheading{Remarks}
1381
1382Use the EVT\_MOVE macro to intercept move events.
1383
1384\wxheading{Remarks}
1385
1386Not currently implemented.
1387
1388\wxheading{See also}
1389
1390\helpref{wxMoveEvent}{wxmoveevent},\rtfsp
1391\helpref{wxFrame::OnSize}{wxframeonsize},\rtfsp
1392\helpref{Event handling overview}{eventhandlingoverview}
1393
1394\membersection{wxWindow::OnPaint}\label{wxwindowonpaint}
1395
1396\func{void}{OnPaint}{\param{wxPaintEvent\& }{event}}
1397
1398Sent to the event handler when the window must be refreshed.
1399
1400\wxheading{Parameters}
1401
1402\docparam{event}{Paint event. For more information, see \helpref{wxPaintEvent}{wxpaintevent}.}
1403
1404\wxheading{Remarks}
1405
1406Use the EVT\_PAINT macro in an event table definition to intercept paint events.
1407
1408In a paint event handler, the application should always create a \helpref{wxPaintDC}{wxpaintdc} object.
1409
1410For example:
1411
1412\small{%
1413\begin{verbatim}
1414 void MyWindow::OnPaint(wxPaintEvent\& event)
1415 {
1416 wxPaintDC dc(this);
1417
1418 DrawMyDocument(dc);
1419 }
1420\end{verbatim}
1421}%
1422
1423You can optimize painting by retrieving the rectangles
1424that have been damaged and only repainting these. The rectangles are in
1425terms of the client area, and are unscrolled, so you will need to do
1426some calculations using the current view position to obtain logical,
1427scrolled units.
1428
1429Here is an example of using the \helpref{wxRegionIterator}{wxregioniterator} class:
1430
1431{\small%
1432\begin{verbatim}
1433// Called when window needs to be repainted.
1434void MyWindow::OnPaint(wxPaintEvent\& event)
1435{
1436 wxPaintDC dc(this);
1437
1438 // Find Out where the window is scrolled to
1439 int vbX,vbY; // Top left corner of client
1440 GetViewStart(&vbX,&vbY);
1441
1442 int vX,vY,vW,vH; // Dimensions of client area in pixels
1443 wxRegionIterator upd(GetUpdateRegion()); // get the update rect list
1444
1445 while (upd)
1446 {
1447 vX = upd.GetX();
1448 vY = upd.GetY();
1449 vW = upd.GetW();
1450 vH = upd.GetH();
1451
1452 // Alternatively we can do this:
1453 // wxRect rect;
1454 // upd.GetRect(&rect);
1455
1456 // Repaint this rectangle
1457 ...some code...
1458
1459 upd ++ ;
1460 }
1461}
1462\end{verbatim}
1463}%
1464
1465\wxheading{See also}
1466
1467\helpref{wxPaintEvent}{wxpaintevent},\rtfsp
1468\helpref{wxPaintDC}{wxpaintdc},\rtfsp
1469\helpref{Event handling overview}{eventhandlingoverview}
1470
1471\membersection{wxWindow::OnScroll}\label{wxwindowonscroll}
1472
1473\func{void}{OnScroll}{\param{wxScrollWinEvent\& }{event}}
1474
1475Called when a scroll window event is received from one of the window's built-in scrollbars.
1476
1477\wxheading{Parameters}
1478
1479\docparam{event}{Command event. Retrieve the new scroll position by
1480calling \helpref{wxScrollEvent::GetPosition}{wxscrolleventgetposition}, and the
1481scrollbar orientation by calling \helpref{wxScrollEvent::GetOrientation}{wxscrolleventgetorientation}.}
1482
1483\wxheading{Remarks}
1484
1485Note that it is not possible to distinguish between horizontal and vertical scrollbars
1486until the function is executing (you can't have one function for vertical, another
1487for horizontal events).
1488
1489\wxheading{See also}
1490
1491\helpref{wxScrollWinEvent}{wxscrollwinevent},\rtfsp
1492\helpref{Event handling overview}{eventhandlingoverview}
1493
1494\membersection{wxWindow::OnSetFocus}\label{wxwindowonsetfocus}
1495
1496\func{void}{OnSetFocus}{\param{wxFocusEvent\& }{event}}
1497
1498Called when a window's focus is being set.
1499
1500\wxheading{Parameters}
1501
1502\docparam{event}{The focus event. For more information, see \helpref{wxFocusEvent}{wxfocusevent}.}
1503
1504\wxheading{Remarks}
1505
1506To intercept this event, use the macro EVT\_SET\_FOCUS in an event table definition.
1507
1508Most, but not all, windows respond to this event.
1509
1510\wxheading{See also}
1511
1512\helpref{wxFocusEvent}{wxfocusevent}, \helpref{wxWindow::OnKillFocus}{wxwindowonkillfocus},\rtfsp
1513\helpref{Event handling overview}{eventhandlingoverview}
1514
1515\membersection{wxWindow::OnSize}\label{wxwindowonsize}
1516
1517\func{void}{OnSize}{\param{wxSizeEvent\& }{event}}
1518
1519Called when the window has been resized.
1520
1521\wxheading{Parameters}
1522
1523\docparam{event}{Size event. For more information, see \helpref{wxSizeEvent}{wxsizeevent}.}
1524
1525\wxheading{Remarks}
1526
1527You may wish to use this for frames to resize their child windows as appropriate.
1528
1529Note that the size passed is of
1530the whole window: call \helpref{wxWindow::GetClientSize}{wxwindowgetclientsize} for the area which may be
1531used by the application.
1532
1533\wxheading{See also}
1534
1535\helpref{wxSizeEvent}{wxsizeevent},\rtfsp
1536\helpref{Event handling overview}{eventhandlingoverview}
1537
1538\membersection{wxWindow::OnSysColourChanged}\label{wxwindowonsyscolourchanged}
1539
1540\func{void}{OnSysColourChanged}{\param{wxOnSysColourChangedEvent\& }{event}}
1541
1542Called when the user has changed the system colours. Windows only.
1543
1544\wxheading{Parameters}
1545
1546\docparam{event}{System colour change event. For more information, see \helpref{wxSysColourChangedEvent}{wxsyscolourchangedevent}.}
1547
1548\wxheading{See also}
1549
1550\helpref{wxSysColourChangedEvent}{wxsyscolourchangedevent},\rtfsp
1551\helpref{Event handling overview}{eventhandlingoverview}
1552
1553\membersection{wxWindow::PopEventHandler}\label{wxwindowpopeventhandler}
1554
1555\constfunc{wxEvtHandler*}{PopEventHandler}{\param{bool }{deleteHandler = FALSE}}
1556
1557Removes and returns the top-most event handler on the event handler stack.
1558
1559\wxheading{Parameters}
1560
1561\docparam{deleteHandler}{If this is TRUE, the handler will be deleted after it is removed. The
1562default value is FALSE.}
1563
1564\wxheading{See also}
1565
1566\helpref{wxWindow::SetEventHandler}{wxwindowseteventhandler},\rtfsp
1567\helpref{wxWindow::GetEventHandler}{wxwindowgeteventhandler},\rtfsp
1568\helpref{wxWindow::PushEventHandler}{wxwindowpusheventhandler},\rtfsp
1569\helpref{wxEvtHandler::ProcessEvent}{wxevthandlerprocessevent},\rtfsp
1570\helpref{wxEvtHandler}{wxevthandler}\rtfsp
1571
1572\membersection{wxWindow::PopupMenu}\label{wxwindowpopupmenu}
1573
1574\func{bool}{PopupMenu}{\param{wxMenu* }{menu}, \param{const wxPoint\& }{pos}}
1575
1576\func{bool}{PopupMenu}{\param{wxMenu* }{menu}, \param{int }{x}, \param{int }{y}}
1577
1578Pops up the given menu at the specified coordinates, relative to this
1579window, and returns control when the user has dismissed the menu. If a
1580menu item is selected, the corresponding menu event is generated and will be
1581processed as usually.
1582
1583\wxheading{Parameters}
1584
1585\docparam{menu}{Menu to pop up.}
1586
1587\docparam{pos}{The position where the menu will appear.}
1588
1589\docparam{x}{Required x position for the menu to appear.}
1590
1591\docparam{y}{Required y position for the menu to appear.}
1592
1593\wxheading{See also}
1594
1595\helpref{wxMenu}{wxmenu}
1596
1597\wxheading{Remarks}
1598
1599Just before the menu is popped up, \helpref{wxMenu::UpdateUI}{wxmenuupdateui} is called
1600to ensure that the menu items are in the correct state. The menu does not get deleted
1601by the window.
1602
1603\pythonnote{In place of a single overloaded method name, wxPython
1604implements the following methods:\par
1605\indented{2cm}{\begin{twocollist}
1606\twocolitem{{\bf PopupMenu(menu, point)}}{Specifies position with a wxPoint}
1607\twocolitem{{\bf PopupMenuXY(menu, x, y)}}{Specifies position with two integers (x, y)}
1608\end{twocollist}}
1609}
1610
1611\membersection{wxWindow::PushEventHandler}\label{wxwindowpusheventhandler}
1612
1613\func{void}{PushEventHandler}{\param{wxEvtHandler* }{handler}}
1614
1615Pushes this event handler onto the event stack for the window.
1616
1617\wxheading{Parameters}
1618
1619\docparam{handler}{Specifies the handler to be pushed.}
1620
1621\wxheading{Remarks}
1622
1623An event handler is an object that is capable of processing the events
1624sent to a window. By default, the window is its own event handler, but
1625an application may wish to substitute another, for example to allow
1626central implementation of event-handling for a variety of different
1627window classes.
1628
1629\helpref{wxWindow::PushEventHandler}{wxwindowpusheventhandler} allows
1630an application to set up a chain of event handlers, where an event not handled by one event handler is
1631handed to the next one in the chain. Use \helpref{wxWindow::PopEventHandler}{wxwindowpopeventhandler} to
1632remove the event handler.
1633
1634\wxheading{See also}
1635
1636\helpref{wxWindow::SetEventHandler}{wxwindowseteventhandler},\rtfsp
1637\helpref{wxWindow::GetEventHandler}{wxwindowgeteventhandler},\rtfsp
1638\helpref{wxWindow::PopEventHandler}{wxwindowpusheventhandler},\rtfsp
1639\helpref{wxEvtHandler::ProcessEvent}{wxevthandlerprocessevent},\rtfsp
1640\helpref{wxEvtHandler}{wxevthandler}
1641
1642\membersection{wxWindow::Raise}\label{wxwindowraise}
1643
1644\func{void}{Raise}{\void}
1645
1646Raises the window to the top of the window hierarchy if it is a managed window (dialog
1647or frame).
1648
1649\membersection{wxWindow::Refresh}\label{wxwindowrefresh}
1650
1651\func{virtual void}{Refresh}{\param{bool}{ eraseBackground = TRUE}, \param{const wxRect* }{rect
1652= NULL}}
1653
1654Causes a message or event to be generated to repaint the
1655window.
1656
1657\wxheading{Parameters}
1658
1659\docparam{eraseBackground}{If TRUE, the background will be
1660erased.}
1661
1662\docparam{rect}{If non-NULL, only the given rectangle will
1663be treated as damaged.}
1664
1665\membersection{wxWindow::ReleaseMouse}\label{wxwindowreleasemouse}
1666
1667\func{virtual void}{ReleaseMouse}{\void}
1668
1669Releases mouse input captured with \helpref{wxWindow::CaptureMouse}{wxwindowcapturemouse}.
1670
1671\wxheading{See also}
1672
1673\helpref{wxWindow::CaptureMouse}{wxwindowcapturemouse}
1674
1675\membersection{wxWindow::RemoveChild}\label{wxwindowremovechild}
1676
1677\func{virtual void}{RemoveChild}{\param{wxWindow* }{child}}
1678
1679Removes a child window. This is called automatically by window deletion
1680functions so should not be required by the application programmer.
1681
1682\wxheading{Parameters}
1683
1684\docparam{child}{Child window to remove.}
1685
1686\membersection{wxWindow::Reparent}\label{wxwindowreparent}
1687
1688\func{virtual bool}{Reparent}{\param{wxWindow* }{newParent}}
1689
1690Reparents the window, i.e the window will be removed from its
1691current parent window (e.g. a non-standard toolbar in a wxFrame)
1692and then re-inserted into another. Available on Windows and GTK.
1693
1694\wxheading{Parameters}
1695
1696\docparam{newParent}{New parent.}
1697
1698\membersection{wxWindow::ScreenToClient}\label{wxwindowscreentoclient}
1699
1700\constfunc{virtual void}{ScreenToClient}{\param{int* }{x}, \param{int* }{y}}
1701
1702\constfunc{virtual wxPoint}{ScreenToClient}{\param{const wxPoint\& }{pt}}
1703
1704Converts from screen to client window coordinates.
1705
1706\wxheading{Parameters}
1707
1708\docparam{x}{Stores the screen x coordinate and receives the client x coordinate.}
1709
1710\docparam{y}{Stores the screen x coordinate and receives the client x coordinate.}
1711
1712\docparam{pt}{The screen position for the second form of the function.}
1713
1714\pythonnote{In place of a single overloaded method name, wxPython
1715implements the following methods:\par
1716\indented{2cm}{\begin{twocollist}
1717\twocolitem{{\bf ScreenToClient(point)}}{Accepts and returns a wxPoint}
1718\twocolitem{{\bf ScreenToClientXY(x, y)}}{Returns a 2-tuple, (x, y)}
1719\end{twocollist}}
1720}
1721
1722
1723\membersection{wxWindow::ScrollWindow}\label{wxwindowscrollwindow}
1724
1725\func{virtual void}{ScrollWindow}{\param{int }{dx}, \param{int }{dy}, \param{const wxRect*}{ rect = NULL}}
1726
1727Physically scrolls the pixels in the window and move child windows accordingly.
1728
1729\wxheading{Parameters}
1730
1731\docparam{dx}{Amount to scroll horizontally.}
1732
1733\docparam{dy}{Amount to scroll vertically.}
1734
1735\docparam{rect}{Rectangle to invalidate. If this is NULL, the whole window is invalidated. If you
1736pass a rectangle corresponding to the area of the window exposed by the scroll, your painting handler
1737can optimise painting by checking for the invalidated region. This paramter is ignored under GTK.}
1738
1739\wxheading{Remarks}
1740
1741Use this function to optimise your scrolling implementations, to minimise the area that must be
1742redrawn. Note that it is rarely required to call this function from a user program.
1743
1744\membersection{wxWindow::SetAcceleratorTable}\label{wxwindowsetacceleratortable}
1745
1746\func{virtual void}{SetAcceleratorTable}{\param{const wxAcceleratorTable\&}{ accel}}
1747
1748Sets the accelerator table for this window. See \helpref{wxAcceleratorTable}{wxacceleratortable}.
1749
1750\membersection{wxWindow::SetAutoLayout}\label{wxwindowsetautolayout}
1751
1752\func{void}{SetAutoLayout}{\param{bool}{ autoLayout}}
1753
1754Determines whether the \helpref{wxWindow::Layout}{wxwindowlayout} function will
1755be called automatically when the window is resized. Use in connection with
1756\helpref{wxWindow::SetSizer}{wxwindowsetsizer} and
1757\helpref{wxWindow::SetConstraints}{wxwindowsetconstraints} for layouting subwindows.
1758
1759\wxheading{Parameters}
1760
1761\docparam{autoLayout}{Set this to TRUE if you wish the Layout function to be called
1762from within wxWindow::OnSize functions.}
1763
1764\wxheading{See also}
1765
1766\helpref{wxWindow::SetConstraints}{wxwindowsetconstraints}
1767
1768\membersection{wxWindow::SetBackgroundColour}\label{wxwindowsetbackgroundcolour}
1769
1770\func{virtual void}{SetBackgroundColour}{\param{const wxColour\& }{colour}}
1771
1772Sets the background colour of the window.
1773
1774\wxheading{Parameters}
1775
1776\docparam{colour}{The colour to be used as the background colour.}
1777
1778\wxheading{Remarks}
1779
1780The background colour is usually painted by the default\rtfsp
1781\helpref{wxWindow::OnEraseBackground}{wxwindowonerasebackground} event handler function
1782under Windows and automatically under GTK.
1783
1784Note that setting the background colour does not cause an immediate refresh, so you
1785may wish to call \helpref{wxWindow::Clear}{wxwindowclear} or \helpref{wxWindow::Refresh}{wxwindowrefresh} after
1786calling this function.
1787
1788Use this function with care under GTK as the new appearance of the window might
1789not look equally well when used with "Themes", i.e GTK's ability to change its
1790look as the user wishes with run-time loadable modules.
1791
1792\wxheading{See also}
1793
1794\helpref{wxWindow::GetBackgroundColour}{wxwindowgetbackgroundcolour},\rtfsp
1795\helpref{wxWindow::SetForegroundColour}{wxwindowsetforegroundcolour},\rtfsp
1796\helpref{wxWindow::GetForegroundColour}{wxwindowgetforegroundcolour},\rtfsp
1797\helpref{wxWindow::Clear}{wxwindowclear},\rtfsp
1798\helpref{wxWindow::Refresh}{wxwindowrefresh},\rtfsp
1799\helpref{wxWindow::OnEraseBackground}{wxwindowonerasebackground}
1800
1801\membersection{wxWindow::SetClientSize}\label{wxwindowsetclientsize}
1802
1803\func{virtual void}{SetClientSize}{\param{int}{ width}, \param{int}{ height}}
1804
1805\func{virtual void}{SetClientSize}{\param{const wxSize\&}{ size}}
1806
1807This sets the size of the window client area in pixels. Using this function to size a window
1808tends to be more device-independent than \helpref{wxWindow::SetSize}{wxwindowsetsize}, since the application need not
1809worry about what dimensions the border or title bar have when trying to fit the window
1810around panel items, for example.
1811
1812\wxheading{Parameters}
1813
1814\docparam{width}{The required client area width.}
1815
1816\docparam{height}{The required client area height.}
1817
1818\docparam{size}{The required client size.}
1819
1820\pythonnote{In place of a single overloaded method name, wxPython
1821implements the following methods:\par
1822\indented{2cm}{\begin{twocollist}
1823\twocolitem{{\bf SetClientSize(size)}}{Accepts a wxSize}
1824\twocolitem{{\bf SetClientSizeWH(width, height)}}{}
1825\end{twocollist}}
1826}
1827
1828\membersection{wxWindow::SetCursor}\label{wxwindowsetcursor}
1829
1830\func{virtual void}{SetCursor}{\param{const wxCursor\&}{cursor}}
1831
1832Sets the window's cursor. Notice that setting the cursor for this window does
1833not set it for its children so you'll need to explicitly call SetCursor() for
1834them too if you need it.
1835
1836\wxheading{Parameters}
1837
1838\docparam{cursor}{Specifies the cursor that the window should normally display.}
1839
1840\wxheading{See also}
1841
1842\helpref{::wxSetCursor}{wxsetcursor}, \helpref{wxCursor}{wxcursor}
1843
1844\membersection{wxWindow::SetEventHandler}\label{wxwindowseteventhandler}
1845
1846\func{void}{SetEventHandler}{\param{wxEvtHandler* }{handler}}
1847
1848Sets the event handler for this window.
1849
1850\wxheading{Parameters}
1851
1852\docparam{handler}{Specifies the handler to be set.}
1853
1854\wxheading{Remarks}
1855
1856An event handler is an object that is capable of processing the events
1857sent to a window. By default, the window is its own event handler, but
1858an application may wish to substitute another, for example to allow
1859central implementation of event-handling for a variety of different
1860window classes.
1861
1862It is usually better to use \helpref{wxWindow::PushEventHandler}{wxwindowpusheventhandler} since
1863this sets up a chain of event handlers, where an event not handled by one event handler is
1864handed to the next one in the chain.
1865
1866\wxheading{See also}
1867
1868\helpref{wxWindow::GetEventHandler}{wxwindowgeteventhandler},\rtfsp
1869\helpref{wxWindow::PushEventHandler}{wxwindowpusheventhandler},\rtfsp
1870\helpref{wxWindow::PopEventHandler}{wxwindowpusheventhandler},\rtfsp
1871\helpref{wxEvtHandler::ProcessEvent}{wxevthandlerprocessevent},\rtfsp
1872\helpref{wxEvtHandler}{wxevthandler}
1873
1874\membersection{wxWindow::SetConstraints}\label{wxwindowsetconstraints}
1875
1876\func{void}{SetConstraints}{\param{wxLayoutConstraints* }{constraints}}
1877
1878Sets the window to have the given layout constraints. The window
1879will then own the object, and will take care of its deletion.
1880If an existing layout constraints object is already owned by the
1881window, it will be deleted.
1882
1883\wxheading{Parameters}
1884
1885\docparam{constraints}{The constraints to set. Pass NULL to disassociate and delete the window's
1886constraints.}
1887
1888\wxheading{Remarks}
1889
1890You must call \helpref{wxWindow::SetAutoLayout}{wxwindowsetautolayout} to tell a window to use
1891the constraints automatically in OnSize; otherwise, you must override OnSize and call Layout()
1892explicitly. When setting both a wxLayoutConstraints and a \helpref{wxSizer}{wxsizer}, only the
1893sizer will have effect.
1894
1895\membersection{wxWindow::SetDropTarget}\label{wxwindowsetdroptarget}
1896
1897\func{void}{SetDropTarget}{\param{wxDropTarget*}{ target}}
1898
1899Associates a drop target with this window.
1900
1901If the window already has a drop target, it is deleted.
1902
1903\wxheading{See also}
1904
1905\helpref{wxWindow::GetDropTarget}{wxwindowgetdroptarget},
1906\helpref{Drag and drop overview}{wxdndoverview}
1907
1908\membersection{wxWindow::SetExtraStyle}\label{wxwindowsetextrastyle}
1909
1910\func{void}{SetExtraStyle}{\param{long }{exStyle}}
1911
1912Sets the extra style bits for the window. The currently defined extra style
1913bits are:
1914
1915\twocolwidtha{5cm}%
1916\begin{twocollist}\itemsep=0pt
1917\twocolitem{\windowstyle{wxWS\_EX\_VALIDATE\_RECURSIVELY}}{TransferDataTo/FromWindow()
1918and Validate() methods will recursively descend into all children of the
1919window if it has this style flag set.}
1920\end{twocollist}
1921
1922\membersection{wxWindow::SetFocus}\label{wxwindowsetfocus}
1923
1924\func{virtual void}{SetFocus}{\void}
1925
1926This sets the window to receive keyboard input.
1927
1928\membersection{wxWindow::SetFont}\label{wxwindowsetfont}
1929
1930\func{void}{SetFont}{\param{const wxFont\& }{font}}
1931
1932Sets the font for this window.
1933
1934\wxheading{Parameters}
1935
1936\docparam{font}{Font to associate with this window.}
1937
1938\wxheading{See also}
1939
1940\helpref{wxWindow::GetFont}{wxwindowgetfont}
1941
1942\membersection{wxWindow::SetForegroundColour}\label{wxwindowsetforegroundcolour}
1943
1944\func{virtual void}{SetForegroundColour}{\param{const wxColour\& }{colour}}
1945
1946Sets the foreground colour of the window.
1947
1948\wxheading{Parameters}
1949
1950\docparam{colour}{The colour to be used as the foreground colour.}
1951
1952\wxheading{Remarks}
1953
1954The interpretation of foreground colour is open to interpretation according
1955to the window class; it may be the text colour or other colour, or it may not
1956be used at all.
1957
1958Note that when using this functions under GTK, you will disable the so called "themes",
1959i.e. the user chosen apperance of windows and controls, including the themes of
1960their parent windows.
1961
1962\wxheading{See also}
1963
1964\helpref{wxWindow::GetForegroundColour}{wxwindowgetforegroundcolour},\rtfsp
1965\helpref{wxWindow::SetBackgroundColour}{wxwindowsetbackgroundcolour},\rtfsp
1966\helpref{wxWindow::GetBackgroundColour}{wxwindowgetbackgroundcolour}
1967
1968\membersection{wxWindow::SetId}\label{wxwindowsetid}
1969
1970\func{void}{SetId}{\param{int}{ id}}
1971
1972Sets the identifier of the window.
1973
1974\wxheading{Remarks}
1975
1976Each window has an integer identifier. If the application has not provided one,
1977an identifier will be generated. Normally, the identifier should be provided
1978on creation and should not be modified subsequently.
1979
1980\wxheading{See also}
1981
1982\helpref{wxWindow::GetId}{wxwindowgetid},\rtfsp
1983\helpref{Window identifiers}{windowids}
1984
1985\membersection{wxWindow::SetName}\label{wxwindowsetname}
1986
1987\func{virtual void}{SetName}{\param{const wxString\& }{name}}
1988
1989Sets the window's name.
1990
1991\wxheading{Parameters}
1992
1993\docparam{name}{A name to set for the window.}
1994
1995\wxheading{See also}
1996
1997\helpref{wxWindow::GetName}{wxwindowgetname}
1998
1999\membersection{wxWindow::SetPalette}\label{wxwindowsetpalette}
2000
2001\func{virtual void}{SetPalette}{\param{wxPalette* }{palette}}
2002
2003Obsolete - use \helpref{wxDC::SetPalette}{wxdcsetpalette} instead.
2004
2005\membersection{wxWindow::SetScrollbar}\label{wxwindowsetscrollbar}
2006
2007\func{virtual void}{SetScrollbar}{\param{int }{orientation}, \param{int }{position},\rtfsp
2008\param{int }{thumbSize}, \param{int }{range},\rtfsp
2009\param{bool }{refresh = TRUE}}
2010
2011Sets the scrollbar properties of a built-in scrollbar.
2012
2013\wxheading{Parameters}
2014
2015\docparam{orientation}{Determines the scrollbar whose page size is to be set. May be wxHORIZONTAL or wxVERTICAL.}
2016
2017\docparam{position}{The position of the scrollbar in scroll units.}
2018
2019\docparam{thumbSize}{The size of the thumb, or visible portion of the scrollbar, in scroll units.}
2020
2021\docparam{range}{The maximum position of the scrollbar.}
2022
2023\docparam{refresh}{TRUE to redraw the scrollbar, FALSE otherwise.}
2024
2025\wxheading{Remarks}
2026
2027Let's say you wish to display 50 lines of text, using the same font.
2028The window is sized so that you can only see 16 lines at a time.
2029
2030You would use:
2031
2032{\small%
2033\begin{verbatim}
2034 SetScrollbar(wxVERTICAL, 0, 16, 50);
2035\end{verbatim}
2036}
2037
2038Note that with the window at this size, the thumb position can never go
2039above 50 minus 16, or 34.
2040
2041You can determine how many lines are currently visible by dividing the current view
2042size by the character height in pixels.
2043
2044When defining your own scrollbar behaviour, you will always need to recalculate
2045the scrollbar settings when the window size changes. You could therefore put your
2046scrollbar calculations and SetScrollbar
2047call into a function named AdjustScrollbars, which can be called initially and also
2048from your \helpref{wxWindow::OnSize}{wxwindowonsize} event handler function.
2049
2050\wxheading{See also}
2051
2052\helpref{Scrolling overview}{scrollingoverview},\rtfsp
2053\helpref{wxScrollBar}{wxscrollbar}, \helpref{wxScrolledWindow}{wxscrolledwindow}
2054
2055\begin{comment}
2056\membersection{wxWindow::SetScrollPage}\label{wxwindowsetscrollpage}
2057
2058\func{virtual void}{SetScrollPage}{\param{int }{orientation}, \param{int }{pageSize}, \param{bool }{refresh = TRUE}}
2059
2060Sets the page size of one of the built-in scrollbars.
2061
2062\wxheading{Parameters}
2063
2064\docparam{orientation}{Determines the scrollbar whose page size is to be set. May be wxHORIZONTAL or wxVERTICAL.}
2065
2066\docparam{pageSize}{Page size in scroll units.}
2067
2068\docparam{refresh}{TRUE to redraw the scrollbar, FALSE otherwise.}
2069
2070\wxheading{Remarks}
2071
2072The page size of a scrollbar is the number of scroll units that the scroll thumb travels when you
2073click on the area above/left of or below/right of the thumb. Normally you will want a whole visible
2074page to be scrolled, i.e. the size of the current view (perhaps the window client size). This
2075value has to be adjusted when the window is resized, since the page size will have changed.
2076
2077In addition to specifying how far the scroll thumb travels when paging, in Motif and some versions of Windows
2078the thumb changes size to reflect the page size relative to the length of the document. When the
2079document size is only slightly bigger than the current view (window) size, almost all of the scrollbar
2080will be taken up by the thumb. When the two values become the same, the scrollbar will (on some systems)
2081disappear.
2082
2083Currently, this function should be called before SetPageRange, because of a quirk in the Windows
2084handling of pages and ranges.
2085
2086\wxheading{See also}
2087
2088\helpref{wxWindow::SetScrollPos}{wxwindowsetscrollpos},\rtfsp
2089\helpref{wxWindow::GetScrollPos}{wxwindowsetscrollpos},\rtfsp
2090\helpref{wxWindow::GetScrollPage}{wxwindowsetscrollpage},\rtfsp
2091\helpref{wxScrollBar}{wxscrollbar}, \helpref{wxScrolledWindow}{wxscrolledwindow}
2092\end{comment}
2093
2094\membersection{wxWindow::SetScrollPos}\label{wxwindowsetscrollpos}
2095
2096\func{virtual void}{SetScrollPos}{\param{int }{orientation}, \param{int }{pos}, \param{bool }{refresh = TRUE}}
2097
2098Sets the position of one of the built-in scrollbars.
2099
2100\wxheading{Parameters}
2101
2102\docparam{orientation}{Determines the scrollbar whose position is to be set. May be wxHORIZONTAL or wxVERTICAL.}
2103
2104\docparam{pos}{Position in scroll units.}
2105
2106\docparam{refresh}{TRUE to redraw the scrollbar, FALSE otherwise.}
2107
2108\wxheading{Remarks}
2109
2110This function does not directly affect the contents of the window: it is up to the
2111application to take note of scrollbar attributes and redraw contents accordingly.
2112
2113\wxheading{See also}
2114
2115\helpref{wxWindow::SetScrollbar}{wxwindowsetscrollbar},\rtfsp
2116\helpref{wxWindow::GetScrollPos}{wxwindowsetscrollpos},\rtfsp
2117\helpref{wxWindow::GetScrollThumb}{wxwindowgetscrollthumb},\rtfsp
2118\helpref{wxScrollBar}{wxscrollbar}, \helpref{wxScrolledWindow}{wxscrolledwindow}
2119
2120\begin{comment}
2121\membersection{wxWindow::SetScrollRange}\label{wxwindowsetscrollrange}
2122
2123\func{virtual void}{SetScrollRange}{\param{int }{orientation}, \param{int }{range}, \param{bool }{refresh = TRUE}}
2124
2125Sets the range of one of the built-in scrollbars.
2126
2127\wxheading{Parameters}
2128
2129\docparam{orientation}{Determines the scrollbar whose range is to be set. May be wxHORIZONTAL or wxVERTICAL.}
2130
2131\docparam{range}{Scroll range.}
2132
2133\docparam{refresh}{TRUE to redraw the scrollbar, FALSE otherwise.}
2134
2135\wxheading{Remarks}
2136
2137The range of a scrollbar is the number of steps that the thumb may travel, rather than the total
2138object length of the scrollbar. If you are implementing a scrolling window, for example, you
2139would adjust the scroll range when the window is resized, by subtracting the window view size from the
2140total virtual window size. When the two sizes are the same (all the window is visible), the range goes to zero
2141and usually the scrollbar will be automatically hidden.
2142
2143\wxheading{See also}
2144
2145\helpref{wxWindow::SetScrollPos}{wxwindowsetscrollpos},\rtfsp
2146\helpref{wxWindow::SetScrollPage}{wxwindowsetscrollpage},\rtfsp
2147\helpref{wxWindow::GetScrollPos}{wxwindowsetscrollpos},\rtfsp
2148\helpref{wxWindow::GetScrollPage}{wxwindowsetscrollpage},\rtfsp
2149\helpref{wxScrollBar}{wxscrollbar}, \helpref{wxScrolledWindow}{wxscrolledwindow}
2150\end{comment}
2151
2152\membersection{wxWindow::SetSize}\label{wxwindowsetsize}
2153
2154\func{virtual void}{SetSize}{\param{int}{ x}, \param{int}{ y}, \param{int}{ width}, \param{int}{ height},
2155 \param{int}{ sizeFlags = wxSIZE\_AUTO}}
2156
2157\func{virtual void}{SetSize}{\param{const wxRect\&}{ rect}}
2158
2159Sets the size and position of the window in pixels.
2160
2161\func{virtual void}{SetSize}{\param{int}{ width}, \param{int}{ height}}
2162
2163\func{virtual void}{SetSize}{\param{const wxSize\&}{ size}}
2164
2165Sets the size of the window in pixels.
2166
2167\wxheading{Parameters}
2168
2169\docparam{x}{Required x position in pixels, or -1 to indicate that the existing
2170value should be used.}
2171
2172\docparam{y}{Required y position in pixels, or -1 to indicate that the existing
2173value should be used.}
2174
2175\docparam{width}{Required width in pixels, or -1 to indicate that the existing
2176value should be used.}
2177
2178\docparam{height}{Required height position in pixels, or -1 to indicate that the existing
2179value should be used.}
2180
2181\docparam{size}{\helpref{wxSize}{wxsize} object for setting the size.}
2182
2183\docparam{rect}{\helpref{wxRect}{wxrect} object for setting the position and size.}
2184
2185\docparam{sizeFlags}{Indicates the interpretation of other parameters. It is a bit list of the following:
2186
2187{\bf wxSIZE\_AUTO\_WIDTH}: a -1 width value is taken to indicate
2188a wxWindows-supplied default width.\\
2189{\bf wxSIZE\_AUTO\_HEIGHT}: a -1 height value is taken to indicate
2190a wxWindows-supplied default width.\\
2191{\bf wxSIZE\_AUTO}: -1 size values are taken to indicate
2192a wxWindows-supplied default size.\\
2193{\bf wxSIZE\_USE\_EXISTING}: existing dimensions should be used
2194if -1 values are supplied.\\
2195{\bf wxSIZE\_ALLOW\_MINUS\_ONE}: allow dimensions of -1 and less to be interpreted
2196as real dimensions, not default values.
2197}
2198
2199\wxheading{Remarks}
2200
2201The second form is a convenience for calling the first form with default
2202x and y parameters, and must be used with non-default width and height values.
2203
2204The first form sets the position and optionally size, of the window.
2205Parameters may be -1 to indicate either that a default should be supplied
2206by wxWindows, or that the current value of the dimension should be used.
2207
2208\wxheading{See also}
2209
2210\helpref{wxWindow::Move}{wxwindowmove}
2211
2212\pythonnote{In place of a single overloaded method name, wxPython
2213implements the following methods:\par
2214\indented{2cm}{\begin{twocollist}
2215\twocolitem{{\bf SetDimensions(x, y, width, height, sizeFlags=wxSIZE\_AUTO)}}{}
2216\twocolitem{{\bf SetSize(size)}}{}
2217\twocolitem{{\bf SetPosition(point)}}{}
2218\end{twocollist}}
2219}
2220
2221\membersection{wxWindow::SetSizeHints}\label{wxwindowsetsizehints}
2222
2223\func{virtual void}{SetSizeHints}{\param{int}{ minW=-1}, \param{int}{ minH=-1}, \param{int}{ maxW=-1}, \param{int}{ maxH=-1},
2224 \param{int}{ incW=-1}, \param{int}{ incH=-1}}
2225
2226Allows specification of minimum and maximum window sizes, and window size increments.
2227If a pair of values is not set (or set to -1), the default values will be used.
2228
2229\wxheading{Parameters}
2230
2231\docparam{minW}{Specifies the minimum width allowable.}
2232
2233\docparam{minH}{Specifies the minimum height allowable.}
2234
2235\docparam{maxW}{Specifies the maximum width allowable.}
2236
2237\docparam{maxH}{Specifies the maximum height allowable.}
2238
2239\docparam{incW}{Specifies the increment for sizing the width (Motif/Xt only).}
2240
2241\docparam{incH}{Specifies the increment for sizing the height (Motif/Xt only).}
2242
2243\wxheading{Remarks}
2244
2245If this function is called, the user will not be able to size the window outside the
2246given bounds.
2247
2248The resizing increments are only significant under Motif or Xt.
2249
2250\membersection{wxWindow::SetSizer}\label{wxwindowsetsizer}
2251
2252\func{void}{SetSizer}{\param{wxSizer* }{sizer}}
2253
2254Sets the window to have the given layout sizer. The window
2255will then own the object, and will take care of its deletion.
2256If an existing layout constraints object is already owned by the
2257window, it will be deleted.
2258
2259\wxheading{Parameters}
2260
2261\docparam{sizer}{The sizer to set. Pass NULL to disassociate and delete the window's
2262sizer.}
2263
2264\wxheading{Remarks}
2265
2266You must call \helpref{wxWindow::SetAutoLayout}{wxwindowsetautolayout} to tell a window to use
2267the sizer automatically in OnSize; otherwise, you must override OnSize and call Layout()
2268explicitly. When setting both a wxSizer and a \helpref{wxLayoutConstraints}{wxlayoutconstraints},
2269only the sizer will have effect.
2270
2271\membersection{wxWindow::SetTitle}\label{wxwindowsettitle}
2272
2273\func{virtual void}{SetTitle}{\param{const wxString\& }{title}}
2274
2275Sets the window's title. Applicable only to frames and dialogs.
2276
2277\wxheading{Parameters}
2278
2279\docparam{title}{The window's title.}
2280
2281\wxheading{See also}
2282
2283\helpref{wxWindow::GetTitle}{wxwindowgettitle}
2284
2285\membersection{wxWindow::SetValidator}\label{wxwindowsetvalidator}
2286
2287\func{virtual void}{SetValidator}{\param{const wxValidator\&}{ validator}}
2288
2289Deletes the current validator (if any) and sets the window validator, having called wxValidator::Clone to
2290create a new validator of this type.
2291
2292\membersection{wxWindow::SetWindowStyle}\label{wxwindowsetwindowstyle}
2293
2294\func{void}{SetWindowStyle}{\param{long}{ style}}
2295
2296Identical to \helpref{SetWindowStyleFlag}{wxwindowsetwindowstyleflag}.
2297
2298\membersection{wxWindow::SetWindowStyleFlag}\label{wxwindowsetwindowstyleflag}
2299
2300\func{virtual void}{SetWindowStyleFlag}{\param{long}{ style}}
2301
2302Sets the style of the window. Please note that some styles cannot be changed
2303after the window creation and that \helpref{Refresh()}{wxwindowrefresh} might
2304be called after changing the others for the change to take place immediately.
2305
2306See \helpref{Windowstyles}{windowstyles} for more information about flags.
2307
2308\wxheading{See also}
2309
2310\helpref{GetWindowStyleFlag}{wxwindowgetwindowstyleflag}
2311
2312\membersection{wxWindow::Show}\label{wxwindowshow}
2313
2314\func{virtual bool}{Show}{\param{bool}{ show}}
2315
2316Shows or hides the window.
2317
2318\wxheading{Parameters}
2319
2320\docparam{show}{If TRUE, displays the window and brings it to the front. Otherwise,
2321hides the window.}
2322
2323\wxheading{See also}
2324
2325\helpref{wxWindow::IsShown}{wxwindowisshown}
2326
2327\membersection{wxWindow::TransferDataFromWindow}\label{wxwindowtransferdatafromwindow}
2328
2329\func{virtual bool}{TransferDataFromWindow}{\void}
2330
2331Transfers values from child controls to data areas specified by their validators. Returns
2332FALSE if a transfer failed.
2333
2334If the window has {\tt wxWS\_EX\_VALIDATE\_RECURSIVELY} extra style flag set,
2335the method will also call TransferDataFromWindow() of all child windows.
2336
2337\wxheading{See also}
2338
2339\helpref{wxWindow::TransferDataToWindow}{wxwindowtransferdatatowindow},\rtfsp
2340\helpref{wxValidator}{wxvalidator}, \helpref{wxWindow::Validate}{wxwindowvalidate}
2341
2342\membersection{wxWindow::TransferDataToWindow}\label{wxwindowtransferdatatowindow}
2343
2344\func{virtual bool}{TransferDataToWindow}{\void}
2345
2346Transfers values to child controls from data areas specified by their validators.
2347
2348If the window has {\tt wxWS\_EX\_VALIDATE\_RECURSIVELY} extra style flag set,
2349the method will also call TransferDataToWindow() of all child windows.
2350
2351\wxheading{Return value}
2352
2353Returns FALSE if a transfer failed.
2354
2355\wxheading{See also}
2356
2357\helpref{wxWindow::TransferDataFromWindow}{wxwindowtransferdatafromwindow},\rtfsp
2358\helpref{wxValidator}{wxvalidator}, \helpref{wxWindow::Validate}{wxwindowvalidate}
2359
2360\membersection{wxWindow::Validate}\label{wxwindowvalidate}
2361
2362\func{virtual bool}{Validate}{\void}
2363
2364Validates the current values of the child controls using their validators.
2365
2366If the window has {\tt wxWS\_EX\_VALIDATE\_RECURSIVELY} extra style flag set,
2367the method will also call Validate() of all child windows.
2368
2369\wxheading{Return value}
2370
2371Returns FALSE if any of the validations failed.
2372
2373\wxheading{See also}
2374
2375\helpref{wxWindow::TransferDataFromWindow}{wxwindowtransferdatafromwindow},\rtfsp
2376\helpref{wxWindow::TransferDataFromWindow}{wxwindowtransferdatafromwindow},\rtfsp
2377\helpref{wxValidator}{wxvalidator}
2378
2379\membersection{wxWindow::WarpPointer}\label{wxwindowwarppointer}
2380
2381\func{void}{WarpPointer}{\param{int}{ x}, \param{int}{ y}}
2382
2383Moves the pointer to the given position on the window.
2384
2385\wxheading{Parameters}
2386
2387\docparam{x}{The new x position for the cursor.}
2388
2389\docparam{y}{The new y position for the cursor.}
2390