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1 \section{\class{wxWindow}}\label{wxwindow}
2
3 wxWindow is the base class for all windows. Any children of the window will be deleted
4 automatically by the destructor before the window itself is deleted.
5
6 %Please note that we documented a number of handler functions (OnChar(), OnMouse() etc.) in this
7 %help text. These must not be called by a user program and are documented only for illustration.
8 %On several platforms, only a few of these handlers are actually written (they are not always
9 %needed) and if you are uncertain on how to add a certain behaviour to a window class, intercept
10 %the respective event as usual and call \helpref{wxEvent::Skip}{wxeventskip} so that the native
11 %platform can implement its native behaviour or just ignore the event if nothing needs to be
12 %done.
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
25 The following styles can apply to all windows, although they will not always make sense for a particular
26 window 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
31 for 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
37 events. Windows only.}
38 \twocolitem{\windowstyle{wxNO\_3D}}{Prevents the children of this window taking on 3D styles, even though
39 the 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
42 wants to get all char events - even for keys like TAB or ENTER which are
43 usually used for dialog navigation and which wouldn't be generated without
44 this style}
45 \twocolitem{\windowstyle{wxNO\_FULL\_REPAINT\_ON\_RESIZE}}{Disables repainting
46 the window completely when its size is changed - you will have to repaint the
47 new window area manually if you use this style. Currently only has an effect for
48 Windows.}
49 \twocolitem{\windowstyle{wxVSCROLL}}{Use this style to enable a vertical scrollbar.}
50 \twocolitem{\windowstyle{wxHSCROLL}}{Use this style to enable a horizontal scrollbar.}
51 \twocolitem{\windowstyle{wxCLIP\_CHILDREN}}{Use this style to eliminate flicker caused by the background being
52 repainted, then children being painted over them. Windows only.}
53 \end{twocollist}
54
55 See 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}\label{wxwindowctor}
64
65 \func{}{wxWindow}{\void}
66
67 Default 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
75 Constructs 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
84 should generate a default position for the window. If using the wxWindow class directly, supply
85 an actual position.}
86
87 \docparam{size}{Window size. wxDefaultSize is (-1, -1) which indicates that wxWindows
88 should generate a default size for the window. If no suitable size can be found, the
89 window will be sized to 20x20 pixels so that the window is visible but obviously not
90 correctly 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
100 Destructor. Deletes all subwindows, then deletes itself. Instead of using
101 the {\bf delete} operator explicitly, you should normally
102 use \helpref{wxWindow::Destroy}{wxwindowdestroy} so that wxWindows
103 can 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::Destroy}{wxwindowdestroy},\rtfsp
109 \helpref{wxCloseEvent}{wxcloseevent}
110
111 \membersection{wxWindow::AddChild}
112
113 \func{virtual void}{AddChild}{\param{wxWindow* }{child}}
114
115 Adds a child window. This is called automatically by window creation
116 functions so should not be required by the application programmer.
117
118 \wxheading{Parameters}
119
120 \docparam{child}{Child window to add.}
121
122 \membersection{wxWindow::CaptureMouse}\label{wxwindowcapturemouse}
123
124 \func{virtual void}{CaptureMouse}{\void}
125
126 Directs all mouse input to this window. Call \helpref{wxWindow::ReleaseMouse}{wxwindowreleasemouse} to
127 release the capture.
128
129 Note that wxWindows maintains the stack of windows having captured the mouse
130 and when the mouse is released the capture returns to the window which had had
131 captured it previously and it is only really released if there were no previous
132 window. In particular, this means that you must release the mouse as many times
133 as you capture it.
134
135 \wxheading{See also}
136
137 \helpref{wxWindow::ReleaseMouse}{wxwindowreleasemouse}
138
139 \membersection{wxWindow::Center}\label{wxwindowcenter}
140
141 \func{void}{Center}{\param{int}{ direction}}
142
143 A synonym for \helpref{Centre}{wxwindowcentre}.
144
145 \membersection{wxWindow::CenterOnParent}\label{wxwindowcenteronparent}
146
147 \func{void}{CenterOnParent}{\param{int}{ direction}}
148
149 A synonym for \helpref{CentreOnParent}{wxwindowcentreonparent}.
150
151 \membersection{wxWindow::CenterOnScreen}\label{wxwindowcenteronscreen}
152
153 \func{void}{CenterOnScreen}{\param{int}{ direction}}
154
155 A synonym for \helpref{CentreOnScreen}{wxwindowcentreonscreen}.
156
157 \membersection{wxWindow::Centre}\label{wxwindowcentre}
158
159 \func{void}{Centre}{\param{int}{ direction = wxBOTH}}
160
161 Centres the window.
162
163 \wxheading{Parameters}
164
165 \docparam{direction}{Specifies the direction for the centering. May be {\tt wxHORIZONTAL}, {\tt wxVERTICAL}\rtfsp
166 or {\tt wxBOTH}. It may also include {\tt wxCENTRE\_ON\_SCREEN} flag
167 if you want to center the window on the entire screen and not on its
168 parent window.}
169
170 The flag {\tt wxCENTRE\_FRAME} is obsolete and should not be used any longer
171 (it has no effect).
172
173 \wxheading{Remarks}
174
175 If the window is a top level one (i.e. doesn't have a parent), it will be
176 centered relative to the screen anyhow.
177
178 \wxheading{See also}
179
180 \helpref{wxWindow::Center}{wxwindowcenter}
181
182 \membersection{wxWindow::CentreOnParent}\label{wxwindowcentreonparent}
183
184 \func{void}{CentreOnParent}{\param{int}{ direction = wxBOTH}}
185
186 Centres the window on its parent. This is a more readable synonym for
187 \helpref{Centre}{wxwindowcentre}.
188
189 \wxheading{Parameters}
190
191 \docparam{direction}{Specifies the direction for the centering. May be {\tt wxHORIZONTAL}, {\tt wxVERTICAL}\rtfsp
192 or {\tt wxBOTH}.}
193
194 \wxheading{Remarks}
195
196 This methods provides for a way to center top level windows over their
197 parents instead of the entire screen. If there is no parent or if the
198 window is not a top level window, then behaviour is the same as
199 \helpref{wxWindow::Centre}{wxwindowcentre}.
200
201 \wxheading{See also}
202
203 \helpref{wxWindow::CentreOnScreen}{wxwindowcenteronscreen}
204
205 \membersection{wxWindow::CentreOnScreen}\label{wxwindowcentreonscreen}
206
207 \func{void}{CentreOnScreen}{\param{int}{ direction = wxBOTH}}
208
209 Centres the window on screen. This only works for top level windows -
210 otherwise, the window will still be centered on its parent.
211
212 \wxheading{Parameters}
213
214 \docparam{direction}{Specifies the direction for the centering. May be {\tt wxHORIZONTAL}, {\tt wxVERTICAL}\rtfsp
215 or {\tt wxBOTH}.}
216
217 \wxheading{See also}
218
219 \helpref{wxWindow::CentreOnParent}{wxwindowcenteronparent}
220
221 \membersection{wxWindow::Clear}\label{wxwindowclear}
222
223 \func{void}{Clear}{\void}
224
225 Clears the window by filling it with the current background colour. Does not
226 cause an erase background event to be generated.
227
228 \membersection{wxWindow::ClientToScreen}
229
230 \constfunc{virtual void}{ClientToScreen}{\param{int* }{x}, \param{int* }{y}}
231
232 \perlnote{In wxPerl this method returns a 2-element list instead of
233 modifying its parameters.}
234
235 \constfunc{virtual wxPoint}{ClientToScreen}{\param{const wxPoint\&}{ pt}}
236
237 Converts to screen coordinates from coordinates relative to this window.
238
239 \docparam{x}{A pointer to a integer value for the x coordinate. Pass the client coordinate in, and
240 a screen coordinate will be passed out.}
241
242 \docparam{y}{A pointer to a integer value for the y coordinate. Pass the client coordinate in, and
243 a screen coordinate will be passed out.}
244
245 \docparam{pt}{The client position for the second form of the function.}
246
247 \pythonnote{In place of a single overloaded method name, wxPython
248 implements the following methods:\par
249 \indented{2cm}{\begin{twocollist}
250 \twocolitem{{\bf ClientToScreen(point)}}{Accepts and returns a wxPoint}
251 \twocolitem{{\bf ClientToScreenXY(x, y)}}{Returns a 2-tuple, (x, y)}
252 \end{twocollist}}
253 }
254
255 \membersection{wxWindow::Close}\label{wxwindowclose}
256
257 \func{bool}{Close}{\param{bool}{ force = {\tt false}}}
258
259 This function simply generates a \helpref{wxCloseEvent}{wxcloseevent} whose
260 handler usually tries to close the window. It doesn't close the window itself,
261 however.
262
263 \wxheading{Parameters}
264
265 \docparam{force}{{\tt false} if the window's close handler should be able to veto the destruction
266 of this window, {\tt true} if it cannot.}
267
268 \wxheading{Remarks}
269
270 Close calls the \helpref{close handler}{wxcloseevent} for the window, providing
271 an opportunity for the window to choose whether to destroy the window.
272 Usually it is only used with the top level windows (wxFrame and wxDialog
273 classes) as the others are not supposed to have any special OnClose() logic.
274
275 The close handler should check whether the window is being deleted forcibly,
276 using \helpref{wxCloseEvent::GetForce}{wxcloseeventgetforce}, in which case it
277 should destroy the window using \helpref{wxWindow::Destroy}{wxwindowdestroy}.
278
279 {\it Note} that calling Close does not guarantee that the window will be
280 destroyed; but it provides a way to simulate a manual close of a window, which
281 may or may not be implemented by destroying the window. The default
282 implementation of wxDialog::OnCloseWindow does not necessarily delete the
283 dialog, since it will simply simulate an wxID\_CANCEL event which is handled by
284 the appropriate button event handler and may do anything at all.
285
286 To guarantee that the window will be destroyed, call
287 \helpref{wxWindow::Destroy}{wxwindowdestroy} instead
288
289 \wxheading{See also}
290
291 \helpref{Window deletion overview}{windowdeletionoverview},\rtfsp
292 \helpref{wxWindow::Destroy}{wxwindowdestroy},\rtfsp
293 \helpref{wxCloseEvent}{wxcloseevent}
294
295 \membersection{wxWindow::ConvertDialogToPixels}\label{wxwindowconvertdialogtopixels}
296
297 \func{wxPoint}{ConvertDialogToPixels}{\param{const wxPoint\&}{ pt}}
298
299 \func{wxSize}{ConvertDialogToPixels}{\param{const wxSize\&}{ sz}}
300
301 Converts a point or size from dialog units to pixels.
302
303 For the x dimension, the dialog units are multiplied by the average character width
304 and then divided by 4.
305
306 For the y dimension, the dialog units are multiplied by the average character height
307 and then divided by 8.
308
309 \wxheading{Remarks}
310
311 Dialog units are used for maintaining a dialog's proportions even if the font changes.
312 Dialogs created using Dialog Editor optionally use dialog units.
313
314 You can also use these functions programmatically. A convenience macro is defined:
315
316 {\small
317 \begin{verbatim}
318 #define wxDLG_UNIT(parent, pt) parent->ConvertDialogToPixels(pt)
319 \end{verbatim}
320 }
321
322 \wxheading{See also}
323
324 \helpref{wxWindow::ConvertPixelsToDialog}{wxwindowconvertpixelstodialog}
325
326 \pythonnote{In place of a single overloaded method name, wxPython
327 implements the following methods:\par
328 \indented{2cm}{\begin{twocollist}
329 \twocolitem{{\bf ConvertDialogPointToPixels(point)}}{Accepts and returns a wxPoint}
330 \twocolitem{{\bf ConvertDialogSizeToPixels(size)}}{Accepts and returns a wxSize}
331 \end{twocollist}}
332
333 Additionally, the following helper functions are defined:\par
334 \indented{2cm}{\begin{twocollist}
335 \twocolitem{{\bf wxDLG\_PNT(win, point)}}{Converts a wxPoint from dialog
336 units to pixels}
337 \twocolitem{{\bf wxDLG\_SZE(win, size)}}{Converts a wxSize from dialog
338 units to pixels}
339 \end{twocollist}}
340 }
341
342
343 \membersection{wxWindow::ConvertPixelsToDialog}\label{wxwindowconvertpixelstodialog}
344
345 \func{wxPoint}{ConvertPixelsToDialog}{\param{const wxPoint\&}{ pt}}
346
347 \func{wxSize}{ConvertPixelsToDialog}{\param{const wxSize\&}{ sz}}
348
349 Converts a point or size from pixels to dialog units.
350
351 For the x dimension, the pixels are multiplied by 4 and then divided by the average
352 character width.
353
354 For the y dimension, the pixels are multiplied by 8 and then divided by the average
355 character height.
356
357 \wxheading{Remarks}
358
359 Dialog units are used for maintaining a dialog's proportions even if the font changes.
360 Dialogs created using Dialog Editor optionally use dialog units.
361
362 \wxheading{See also}
363
364 \helpref{wxWindow::ConvertDialogToPixels}{wxwindowconvertdialogtopixels}
365
366
367 \pythonnote{In place of a single overloaded method name, wxPython
368 implements the following methods:\par
369 \indented{2cm}{\begin{twocollist}
370 \twocolitem{{\bf ConvertDialogPointToPixels(point)}}{Accepts and returns a wxPoint}
371 \twocolitem{{\bf ConvertDialogSizeToPixels(size)}}{Accepts and returns a wxSize}
372 \end{twocollist}}
373 }
374
375 \membersection{wxWindow::Destroy}\label{wxwindowdestroy}
376
377 \func{virtual bool}{Destroy}{\void}
378
379 Destroys the window safely. Use this function instead of the delete operator, since
380 different window classes can be destroyed differently. Frames and dialogs
381 are not destroyed immediately when this function is called -- they are added
382 to a list of windows to be deleted on idle time, when all the window's events
383 have been processed. This prevents problems with events being sent to non-existent
384 windows.
385
386 \wxheading{Return value}
387
388 {\tt true} if the window has either been successfully deleted, or it has been added
389 to the list of windows pending real deletion.
390
391 \membersection{wxWindow::DestroyChildren}
392
393 \func{virtual void}{DestroyChildren}{\void}
394
395 Destroys all children of a window. Called automatically by the destructor.
396
397 \membersection{wxWindow::Disable}\label{wxwindowdisable}
398
399 \func{void}{Disable}{\void}
400
401 Disables the window, same as \helpref{Enable({\tt false})}{wxwindowenable}.
402
403 \wxheading{Return value}
404
405 Returns {\tt true} if the window has been disabled, {\tt false} if it had been
406 already disabled before the call to this function.
407
408 \membersection{wxWindow::DragAcceptFiles}\label{wxwindowdragacceptfiles}
409
410 \func{virtual void}{DragAcceptFiles}{\param{bool}{ accept}}
411
412 Enables or disables eligibility for drop file events (OnDropFiles).
413
414 \wxheading{Parameters}
415
416 \docparam{accept}{If {\tt true}, the window is eligible for drop file events. If {\tt false}, the window
417 will not accept drop file events.}
418
419 \wxheading{Remarks}
420
421 Windows only.
422
423 \membersection{wxWindow::Enable}\label{wxwindowenable}
424
425 \func{virtual bool}{Enable}{\param{bool}{ enable = {\tt true}}}
426
427 Enable or disable the window for user input. Note that when a parent window is
428 disabled, all of its children are disabled as well and they are reenabled again
429 when the parent is.
430
431 \wxheading{Parameters}
432
433 \docparam{enable}{If {\tt true}, enables the window for input. If {\tt false}, disables the window.}
434
435 \wxheading{Return value}
436
437 Returns {\tt true} if the window has been enabled or disabled, {\tt false} if
438 nothing was done, i.e. if the window had already been in the specified state.
439
440 \wxheading{See also}
441
442 \helpref{wxWindow::IsEnabled}{wxwindowisenabled},\rtfsp
443 \helpref{wxWindow::Disable}{wxwindowdisable}
444
445 \membersection{wxWindow::FindFocus}\label{wxwindowfindfocus}
446
447 \func{static wxWindow*}{FindFocus}{\void}
448
449 Finds the window or control which currently has the keyboard focus.
450
451 \wxheading{Remarks}
452
453 Note that this is a static function, so it can be called without needing a wxWindow pointer.
454
455 \wxheading{See also}
456
457 \helpref{wxWindow::SetFocus}{wxwindowsetfocus}
458
459 \membersection{wxWindow::FindWindow}\label{wxwindowfindwindow}
460
461 \func{wxWindow*}{FindWindow}{\param{long}{ id}}
462
463 Find a child of this window, by identifier.
464
465 \func{wxWindow*}{FindWindow}{\param{const wxString\&}{ name}}
466
467 Find a child of this window, by name.
468
469 \pythonnote{In place of a single overloaded method name, wxPython
470 implements the following methods:\par
471 \indented{2cm}{\begin{twocollist}
472 \twocolitem{{\bf FindWindowById(id)}}{Accepts an integer}
473 \twocolitem{{\bf FindWindowByName(name)}}{Accepts a string}
474 \end{twocollist}}
475 }
476
477 \membersection{wxWindow::FindWindowById}\label{wxwindowfindwindowbyid}
478
479 \func{static wxWindow*}{FindWindowById}{\param{long}{ id}, \param{wxWindow*}{ parent = NULL}}
480
481 Find the first window with the given {\it id}.
482
483 If {\it parent} is NULL, the search will start from all top-level
484 frames and dialog boxes; if non-NULL, the search will be limited to the given window hierarchy.
485 The search is recursive in both cases.
486
487 \wxheading{See also}
488
489 \helpref{FindWindow}{wxwindowfindwindow}
490
491 \membersection{wxWindow::FindWindowByName}\label{wxwindowfindwindowbyname}
492
493 \func{static wxWindow*}{FindWindowByName}{\param{const wxString\&}{ name}, \param{wxWindow*}{ parent = NULL}}
494
495 Find a window by its name (as given in a window constructor or {\bf Create} function call).
496 If {\it parent} is NULL, the search will start from all top-level
497 frames and dialog boxes; if non-NULL, the search will be limited to the given window hierarchy.
498 The search is recursive in both cases.
499
500 If no window with such name is found,
501 \helpref{FindWindowByLabel}{wxwindowfindwindowbylabel} is called.
502
503 \wxheading{See also}
504
505 \helpref{FindWindow}{wxwindowfindwindow}
506
507 \membersection{wxWindow::FindWindowByLabel}\label{wxwindowfindwindowbylabel}
508
509 \func{static wxWindow*}{FindWindowByLabel}{\param{const wxString\&}{ label}, \param{wxWindow*}{ parent = NULL}}
510
511 Find a window by its label. Depending on the type of window, the label may be a window title
512 or panel item label. If {\it parent} is NULL, the search will start from all top-level
513 frames and dialog boxes; if non-NULL, the search will be limited to the given window hierarchy.
514 The search is recursive in both cases.
515
516 \wxheading{See also}
517
518 \helpref{FindWindow}{wxwindowfindwindow}
519
520 \membersection{wxWindow::Fit}\label{wxwindowfit}
521
522 \func{virtual void}{Fit}{\void}
523
524 Sizes the window so that it fits around its subwindows. This function won't do
525 anything if there are no subwindows.
526
527 \membersection{wxWindow::FitInside}\label{wxwindowfitinside}
528
529 \func{virtual void}{FitInside}{\void}
530
531 Similar to \helpref{Fit}{wxwindowfit}, but sizes the interior (virtual) size
532 of a window. Mainly useful with scrolled windows to reset scrollbars after
533 sizing changes that do not trigger a size event, and/or scrolled windows without
534 an interior sizer. This function similarly won't do anything if there are no
535 subwindows.
536
537 \membersection{wxWindow::Freeze}\label{wxwindowfreeze}
538
539 \func{virtual void}{Freeze}{\void}
540
541 Freezes the window or, in other words, prevents any updates from taking place
542 on screen, the window is not redrawn at all. \helpref{Thaw}{wxwindowthaw} must
543 be called to reenable window redrawing.
544
545 This method is useful for visual appearance optimization (for example, it
546 is a good idea to use it before inserting large amount of text into a
547 wxTextCtrl under wxGTK) but is not implemented on all platforms nor for all
548 controls so it is mostly just a hint to wxWindows and not a mandatory
549 directive.
550
551 \membersection{wxWindow::GetAccessible}\label{wxwindowgetaccessible}
552
553 \func{wxAccessibile*}{GetAccessible}{\void}
554
555 Returns the accessible object for this window, if any.
556
557 See also \helpref{wxAccessible}{wxaccessible}.
558
559 \membersection{wxWindow::GetAdjustedBestSize}\label{wxwindowgetadjustedbestsize}
560
561 \constfunc{wxSize}{GetAdjustedBestSize}{\void}
562
563 This method is similar to \helpref{GetBestSize}{wxwindowgetbestsize}, except
564 in one thing. GetBestSize should return the minimum untruncated size of the
565 window, while this method will return the largest of BestSize and any user
566 specified minimum size. ie. it is the minimum size the window should currently
567 be drawn at, not the minimal size it can possibly tolerate.
568
569 \membersection{wxWindow::GetBackgroundColour}\label{wxwindowgetbackgroundcolour}
570
571 \constfunc{virtual wxColour}{GetBackgroundColour}{\void}
572
573 Returns the background colour of the window.
574
575 \wxheading{See also}
576
577 \helpref{wxWindow::SetBackgroundColour}{wxwindowsetbackgroundcolour},\rtfsp
578 \helpref{wxWindow::SetForegroundColour}{wxwindowsetforegroundcolour},\rtfsp
579 \helpref{wxWindow::GetForegroundColour}{wxwindowgetforegroundcolour}
580
581 \membersection{wxWindow::GetBestSize}\label{wxwindowgetbestsize}
582
583 \constfunc{virtual wxSize}{GetBestSize}{\void}
584
585 This functions returns the best acceptable minimal size for the window. For
586 example, for a static control, it will be the minimal size such that the
587 control label is not truncated. For windows containing subwindows (typically
588 \helpref{wxPanel}{wxpanel}), the size returned by this function will be the
589 same as the size the window would have had after calling
590 \helpref{Fit}{wxwindowfit}.
591
592 \membersection{wxWindow::GetCaret}\label{wxwindowgetcaret}
593
594 \constfunc{wxCaret *}{GetCaret}{\void}
595
596 Returns the \helpref{caret}{wxcaret} associated with the window.
597
598 \membersection{wxWindow::GetCapture}\label{wxwindowgetcapture}
599
600 \func{static wxWindow *}{GetCapture}{\void}
601
602 Returns the currently captured window.
603
604 \wxheading{See also}
605
606 \helpref{wxWindow::HasCapture}{wxwindowhascapture},
607 \helpref{wxWindow::CaptureMouse}{wxwindowcapturemouse},
608 \helpref{wxWindow::ReleaseMouse}{wxwindowreleasemouse},
609 \helpref{wxMouseCaptureChangedEvent}{wxmousecapturechangedevent}
610
611 \membersection{wxWindow::GetCharHeight}
612
613 \constfunc{virtual int}{GetCharHeight}{\void}
614
615 Returns the character height for this window.
616
617 \membersection{wxWindow::GetCharWidth}
618
619 \constfunc{virtual int}{GetCharWidth}{\void}
620
621 Returns the average character width for this window.
622
623 \membersection{wxWindow::GetChildren}
624
625 \func{wxList\&}{GetChildren}{\void}
626
627 Returns a reference to the list of the window's children.
628
629 \membersection{wxWindow::GetClientSize}\label{wxwindowgetclientsize}
630
631 \constfunc{virtual void}{GetClientSize}{\param{int* }{width}, \param{int* }{height}}
632
633 \perlnote{In wxPerl this method takes no parameter and returns
634 a 2-element list {\tt ( width, height )}.}
635
636 \constfunc{virtual wxSize}{GetClientSize}{\void}
637
638 This gets the size of the window `client area' in pixels.
639 The client area is the area which may be drawn on by the programmer,
640 excluding title bar, border, scrollbars, etc.
641
642 \wxheading{Parameters}
643
644 \docparam{width}{Receives the client width in pixels.}
645
646 \docparam{height}{Receives the client height in pixels.}
647
648 \pythonnote{In place of a single overloaded method name, wxPython
649 implements the following methods:\par
650 \indented{2cm}{\begin{twocollist}
651 \twocolitem{{\bf GetClientSizeTuple()}}{Returns a 2-tuple of (width, height)}
652 \twocolitem{{\bf GetClientSize()}}{Returns a wxSize object}
653 \end{twocollist}}
654 }
655
656 \wxheading{See also}
657
658 \helpref{GetSize}{wxwindowgetsize}
659 \helpref{GetVirtualSize}{wxwindowgetvirtualsize}
660
661 \membersection{wxWindow::GetConstraints}\label{wxwindowgetconstraints}
662
663 \constfunc{wxLayoutConstraints*}{GetConstraints}{\void}
664
665 Returns a pointer to the window's layout constraints, or NULL if there are none.
666
667 \membersection{wxWindow::GetContainingSizer}\label{wxwindowgetcontainingsizer}
668
669 \constfunc{const wxSizer *}{GetContainingSizer}{\void}
670
671 Return the sizer that this window is a member of, if any, otherwise
672 {\tt NULL}.
673
674 \membersection{wxWindow::GetDropTarget}\label{wxwindowgetdroptarget}
675
676 \constfunc{wxDropTarget*}{GetDropTarget}{\void}
677
678 Returns the associated drop target, which may be NULL.
679
680 \wxheading{See also}
681
682 \helpref{wxWindow::SetDropTarget}{wxwindowsetdroptarget},
683 \helpref{Drag and drop overview}{wxdndoverview}
684
685 \membersection{wxWindow::GetEventHandler}\label{wxwindowgeteventhandler}
686
687 \constfunc{wxEvtHandler*}{GetEventHandler}{\void}
688
689 Returns the event handler for this window. By default, the window is its
690 own event handler.
691
692 \wxheading{See also}
693
694 \helpref{wxWindow::SetEventHandler}{wxwindowseteventhandler},\rtfsp
695 \helpref{wxWindow::PushEventHandler}{wxwindowpusheventhandler},\rtfsp
696 \helpref{wxWindow::PopEventHandler}{wxwindowpusheventhandler},\rtfsp
697 \helpref{wxEvtHandler::ProcessEvent}{wxevthandlerprocessevent},\rtfsp
698 \helpref{wxEvtHandler}{wxevthandler}\rtfsp
699
700 \membersection{wxWindow::GetExtraStyle}\label{wxwindowgetextrastyle}
701
702 \constfunc{long}{GetExtraStyle}{\void}
703
704 Returns the extra style bits for the window.
705
706 \membersection{wxWindow::GetFont}\label{wxwindowgetfont}
707
708 \constfunc{wxFont\&}{GetFont}{\void}
709
710 Returns a reference to the font for this window.
711
712 \wxheading{See also}
713
714 \helpref{wxWindow::SetFont}{wxwindowsetfont}
715
716 \membersection{wxWindow::GetForegroundColour}\label{wxwindowgetforegroundcolour}
717
718 \func{virtual wxColour}{GetForegroundColour}{\void}
719
720 Returns the foreground colour of the window.
721
722 \wxheading{Remarks}
723
724 The interpretation of foreground colour is open to interpretation according
725 to the window class; it may be the text colour or other colour, or it may not
726 be used at all.
727
728 \wxheading{See also}
729
730 \helpref{wxWindow::SetForegroundColour}{wxwindowsetforegroundcolour},\rtfsp
731 \helpref{wxWindow::SetBackgroundColour}{wxwindowsetbackgroundcolour},\rtfsp
732 \helpref{wxWindow::GetBackgroundColour}{wxwindowgetbackgroundcolour}
733
734 \membersection{wxWindow::GetGrandParent}
735
736 \constfunc{wxWindow*}{GetGrandParent}{\void}
737
738 Returns the grandparent of a window, or NULL if there isn't one.
739
740 \membersection{wxWindow::GetHandle}\label{wxwindowgethandle}
741
742 \constfunc{void*}{GetHandle}{\void}
743
744 Returns the platform-specific handle of the physical window. Cast it to an appropriate
745 handle, such as {\bf HWND} for Windows, {\bf Widget} for Motif or {\bf GtkWidget} for GTK.
746
747 \pythonnote{This method will return an integer in wxPython.}
748
749 \perlnote{This method will return an integer in wxPerl.}
750
751 \membersection{wxWindow::GetHelpText}\label{wxwindowgethelptext}
752
753 \constfunc{virtual wxString}{GetHelpText}{\void}
754
755 Gets the help text to be used as context-sensitive help for this window.
756
757 Note that the text is actually stored by the current \helpref{wxHelpProvider}{wxhelpprovider} implementation,
758 and not in the window object itself.
759
760 \wxheading{See also}
761
762 \helpref{SetHelpText}{wxwindowsethelptext}, \helpref{wxHelpProvider}{wxhelpprovider}
763
764 \membersection{wxWindow::GetId}\label{wxwindowgetid}
765
766 \constfunc{int}{GetId}{\void}
767
768 Returns the identifier of the window.
769
770 \wxheading{Remarks}
771
772 Each window has an integer identifier. If the application has not provided one
773 (or the default Id -1) an unique identifier with a negative value will be generated.
774
775 \wxheading{See also}
776
777 \helpref{wxWindow::SetId}{wxwindowsetid},\rtfsp
778 \helpref{Window identifiers}{windowids}
779
780 \membersection{wxWindow::GetLabel}
781
782 \constfunc{virtual wxString }{GetLabel}{\void}
783
784 Generic way of getting a label from any window, for
785 identification purposes.
786
787 \wxheading{Remarks}
788
789 The interpretation of this function differs from class to class.
790 For frames and dialogs, the value returned is the title. For buttons or static text controls, it is
791 the button text. This function can be useful for meta-programs (such as testing
792 tools or special-needs access programs) which need to identify windows
793 by name.
794
795 \membersection{wxWindow::GetName}\label{wxwindowgetname}
796
797 \constfunc{virtual wxString }{GetName}{\void}
798
799 Returns the window's name.
800
801 \wxheading{Remarks}
802
803 This name is not guaranteed to be unique; it is up to the programmer to supply an appropriate
804 name in the window constructor or via \helpref{wxWindow::SetName}{wxwindowsetname}.
805
806 \wxheading{See also}
807
808 \helpref{wxWindow::SetName}{wxwindowsetname}
809
810 \membersection{wxWindow::GetParent}
811
812 \constfunc{virtual wxWindow*}{GetParent}{\void}
813
814 Returns the parent of the window, or NULL if there is no parent.
815
816 \membersection{wxWindow::GetPosition}\label{wxwindowgetposition}
817
818 \constfunc{virtual void}{GetPosition}{\param{int* }{x}, \param{int* }{y}}
819
820 \constfunc{wxPoint}{GetPosition}{\void}
821
822 This gets the position of the window in pixels, relative to the parent window
823 for the child windows or relative to the display origin for the top level
824 windows.
825
826 \wxheading{Parameters}
827
828 \docparam{x}{Receives the x position of the window.}
829
830 \docparam{y}{Receives the y position of the window.}
831
832 \pythonnote{In place of a single overloaded method name, wxPython
833 implements the following methods:\par
834 \indented{2cm}{\begin{twocollist}
835 \twocolitem{{\bf GetPosition()}}{Returns a wxPoint}
836 \twocolitem{{\bf GetPositionTuple()}}{Returns a tuple (x, y)}
837 \end{twocollist}}
838 }
839
840 \perlnote{In wxPerl there are two methods instead of a single overloaded
841 method:\par
842 \indented{2cm}{\begin{twocollist}
843 \twocolitem{{\bf GetPosition()}}{Returns a Wx::Point}
844 \twocolitem{{\bf GetPositionXY()}}{Returns a 2-element list
845 {\tt ( x, y )}}
846 \end{twocollist}
847 }}
848
849 \membersection{wxWindow::GetRect}\label{wxwindowgetrect}
850
851 \constfunc{virtual wxRect}{GetRect}{\void}
852
853 Returns the size and position of the window as a \helpref{wxRect}{wxrect} object.
854
855 \membersection{wxWindow::GetScrollThumb}\label{wxwindowgetscrollthumb}
856
857 \func{virtual int}{GetScrollThumb}{\param{int }{orientation}}
858
859 Returns the built-in scrollbar thumb size.
860
861 \wxheading{See also}
862
863 \helpref{wxWindow::SetScrollbar}{wxwindowsetscrollbar}
864
865 \membersection{wxWindow::GetScrollPos}\label{wxwindowgetscrollpos}
866
867 \func{virtual int}{GetScrollPos}{\param{int }{orientation}}
868
869 Returns the built-in scrollbar position.
870
871 \wxheading{See also}
872
873 See \helpref{wxWindow::SetScrollbar}{wxwindowsetscrollbar}
874
875 \membersection{wxWindow::GetScrollRange}\label{wxwindowgetscrollrange}
876
877 \func{virtual int}{GetScrollRange}{\param{int }{orientation}}
878
879 Returns the built-in scrollbar range.
880
881 \wxheading{See also}
882
883 \helpref{wxWindow::SetScrollbar}{wxwindowsetscrollbar}
884
885 \membersection{wxWindow::GetSize}\label{wxwindowgetsize}
886
887 \constfunc{virtual void}{GetSize}{\param{int* }{width}, \param{int* }{height}}
888
889 \constfunc{virtual wxSize}{GetSize}{\void}
890
891 This gets the size of the entire window in pixels,
892 including title bar, border, scrollbars, etc.
893
894 \wxheading{Parameters}
895
896 \docparam{width}{Receives the window width.}
897
898 \docparam{height}{Receives the window height.}
899
900 \pythonnote{In place of a single overloaded method name, wxPython
901 implements the following methods:\par
902 \indented{2cm}{\begin{twocollist}
903 \twocolitem{{\bf GetSize()}}{Returns a wxSize}
904 \twocolitem{{\bf GetSizeTuple()}}{Returns a 2-tuple (width, height)}
905 \end{twocollist}}
906 }
907
908 \perlnote{In wxPerl there are two methods instead of a single overloaded
909 method:\par
910 \indented{2cm}{\begin{twocollist}
911 \twocolitem{{\bf GetSize()}}{Returns a Wx::Size}
912 \twocolitem{{\bf GetSizeWH()}}{Returns a 2-element list
913 {\tt ( width, height )}}
914 \end{twocollist}
915 }}
916
917 \wxheading{See also}
918
919 \helpref{GetClientSize}{wxwindowgetclientsize},\rtfsp
920 \helpref{GetVirtualSize}{wxwindowgetvirtualsize}
921
922 \membersection{wxWindow::GetSizer}\label{wxwindowgetsizer}
923
924 \constfunc{wxSizer *}{GetSizer}{\void}
925
926 Return the sizer associated with the window by a previous call to
927 \helpref{SetSizer()}{wxwindowsetsizer} or {\tt NULL}.
928
929 \membersection{wxWindow::GetTextExtent}\label{wxwindowgettextextent}
930
931 \constfunc{virtual void}{GetTextExtent}{\param{const wxString\& }{string}, \param{int* }{x}, \param{int* }{y},
932 \param{int* }{descent = NULL}, \param{int* }{externalLeading = NULL},
933 \param{const wxFont* }{font = NULL}, \param{bool}{ use16 = {\tt false}}}
934
935 Gets the dimensions of the string as it would be drawn on the
936 window with the currently selected font.
937
938 \wxheading{Parameters}
939
940 \docparam{string}{String whose extent is to be measured.}
941
942 \docparam{x}{Return value for width.}
943
944 \docparam{y}{Return value for height.}
945
946 \docparam{descent}{Return value for descent (optional).}
947
948 \docparam{externalLeading}{Return value for external leading (optional).}
949
950 \docparam{font}{Font to use instead of the current window font (optional).}
951
952 \docparam{use16}{If {\tt true}, {\it string} contains 16-bit characters. The default is {\tt false}.}
953
954
955 \pythonnote{In place of a single overloaded method name, wxPython
956 implements the following methods:\par
957 \indented{2cm}{\begin{twocollist}
958 \twocolitem{{\bf GetTextExtent(string)}}{Returns a 2-tuple, (width, height)}
959 \twocolitem{{\bf GetFullTextExtent(string, font=NULL)}}{Returns a
960 4-tuple, (width, height, descent, externalLeading) }
961 \end{twocollist}}
962 }
963
964 \perlnote{In wxPerl this method takes only the {\tt string} and optionally
965 {\tt font} parameters, and returns a 4-element list
966 {\tt ( x, y, descent, externalLeading )}.}
967
968 \membersection{wxWindow::GetTitle}\label{wxwindowgettitle}
969
970 \func{virtual wxString}{GetTitle}{\void}
971
972 Gets the window's title. Applicable only to frames and dialogs.
973
974 \wxheading{See also}
975
976 \helpref{wxWindow::SetTitle}{wxwindowsettitle}
977
978 \membersection{wxWindow::GetToolTip}\label{wxwindowgettooltip}
979
980 \constfunc{wxToolTip*}{GetToolTip}{\void}
981
982 Get the associated tooltip or NULL if none.
983
984 \membersection{wxWindow::GetUpdateRegion}\label{wxwindowgetupdateregion}
985
986 \constfunc{virtual wxRegion}{GetUpdateRegion}{\void}
987
988 Returns the region specifying which parts of the window have been damaged. Should
989 only be called within an \helpref{wxPaintEvent}{wxpaintevent} handler.
990
991 \wxheading{See also}
992
993 \helpref{wxRegion}{wxregion},\rtfsp
994 \helpref{wxRegionIterator}{wxregioniterator}
995
996 \membersection{wxWindow::GetValidator}\label{wxwindowgetvalidator}
997
998 \constfunc{wxValidator*}{GetValidator}{\void}
999
1000 Returns a pointer to the current validator for the window, or NULL if there is none.
1001
1002 \membersection{wxWindow::GetVirtualSize}\label{wxwindowgetvirtualsize}
1003
1004 \constfunc{void}{GetVirtualSize}{\param{int* }{width}, \param{int* }{height}}
1005
1006 \constfunc{wxSize}{GetVirtualSize}{\void}
1007
1008 This gets the virtual size of the window in pixels.
1009
1010 \wxheading{Parameters}
1011
1012 \docparam{width}{Receives the window virtual width.}
1013
1014 \docparam{height}{Receives the window virtual height.}
1015
1016 \helpref{GetSize}{wxwindowgetsize},\rtfsp
1017 \helpref{GetClientSize}{wxwindowgetclientsize}
1018
1019 \membersection{wxWindow::GetWindowStyleFlag}\label{wxwindowgetwindowstyleflag}
1020
1021 \constfunc{long}{GetWindowStyleFlag}{\void}
1022
1023 Gets the window style that was passed to the constructor or {\bf Create}
1024 method. {\bf GetWindowStyle()} is another name for the same function.
1025
1026 \membersection{wxWindow::HasCapture}\label{wxwindowhascapture}
1027
1028 \constfunc{virtual bool}{HasCapture}{\void}
1029
1030 Returns true if this window has the current mouse capture.
1031
1032 \wxheading{See also}
1033
1034 \helpref{wxWindow::CaptureMouse}{wxwindowcapturemouse},
1035 \helpref{wxWindow::ReleaseMouse}{wxwindowreleasemouse},
1036 \helpref{wxMouseCaptureChangedEvent}{wxmousecapturechangedevent}
1037
1038 \membersection{wxWindow::Hide}\label{wxwindowhide}
1039
1040 \func{bool}{Hide}{\void}
1041
1042 Equivalent to calling \helpref{Show}{wxwindowshow}({\tt false}).
1043
1044 \membersection{wxWindow::InitDialog}\label{wxwindowinitdialog}
1045
1046 \func{void}{InitDialog}{\void}
1047
1048 Sends an {\tt wxEVT\_INIT\_DIALOG} event, whose handler usually transfers data
1049 to the dialog via validators.
1050
1051 \membersection{wxWindow::IsEnabled}\label{wxwindowisenabled}
1052
1053 \constfunc{virtual bool}{IsEnabled}{\void}
1054
1055 Returns {\tt true} if the window is enabled for input, {\tt false} otherwise.
1056
1057 \wxheading{See also}
1058
1059 \helpref{wxWindow::Enable}{wxwindowenable}
1060
1061 \membersection{wxWindow:IsExposed}\label{wxwindowisexposed}
1062
1063 \constfunc{bool}{IsExposed}{\param{int }{x}, \param{int }{y}}
1064
1065 \constfunc{bool}{IsExposed}{\param{wxPoint }{\&pt}}
1066
1067 \constfunc{bool}{IsExposed}{\param{int }{x}, \param{int }{y}, \param{int }{w}, \param{int }{h}}
1068
1069 \constfunc{bool}{IsExposed}{\param{wxRect }{\&rect}}
1070
1071 Returns {\tt true} if the given point or rectangle area has been exposed since the
1072 last repaint. Call this in an paint event handler to optimize redrawing by
1073 only redrawing those areas, which have been exposed.
1074
1075 \pythonnote{In place of a single overloaded method name, wxPython
1076 implements the following methods:\par
1077 \indented{2cm}{\begin{twocollist}
1078 \twocolitem{{\bf IsExposed(x,y, w=0,h=0}}{}
1079 \twocolitem{{\bf IsExposedPoint(pt)}}{}
1080 \twocolitem{{\bf IsExposedRect(rect)}}{}
1081 \end{twocollist}}}
1082
1083 \membersection{wxWindow::IsRetained}\label{wxwindowisretained}
1084
1085 \constfunc{virtual bool}{IsRetained}{\void}
1086
1087 Returns {\tt true} if the window is retained, {\tt false} otherwise.
1088
1089 \wxheading{Remarks}
1090
1091 Retained windows are only available on X platforms.
1092
1093 \membersection{wxWindow::IsShown}\label{wxwindowisshown}
1094
1095 \constfunc{virtual bool}{IsShown}{\void}
1096
1097 Returns {\tt true} if the window is shown, {\tt false} if it has been hidden.
1098
1099 \membersection{wxWindow::IsTopLevel}\label{wxwindowistoplevel}
1100
1101 \constfunc{bool}{IsTopLevel}{\void}
1102
1103 Returns {\tt true} if the given window is a top-level one. Currently all frames and
1104 dialogs are considered to be top-level windows (even if they have a parent
1105 window).
1106
1107 \membersection{wxWindow::Layout}\label{wxwindowlayout}
1108
1109 \func{void}{Layout}{\void}
1110
1111 Invokes the constraint-based layout algorithm or the sizer-based algorithm
1112 for this window.
1113
1114 See \helpref{wxWindow::SetAutoLayout}{wxwindowsetautolayout}: when auto
1115 layout is on, this function gets called automatically when the window is resized.
1116
1117 \membersection{wxWindow::Lower}\label{wxwindowlower}
1118
1119 \func{void}{Lower}{\void}
1120
1121 Lowers the window to the bottom of the window hierarchy if it is a managed window (dialog
1122 or frame).
1123
1124 \membersection{wxWindow::MakeModal}\label{wxwindowmakemodal}
1125
1126 \func{virtual void}{MakeModal}{\param{bool }{flag}}
1127
1128 Disables all other windows in the application so that
1129 the user can only interact with this window. (This function
1130 is not implemented anywhere).
1131
1132 \wxheading{Parameters}
1133
1134 \docparam{flag}{If {\tt true}, this call disables all other windows in the application so that
1135 the user can only interact with this window. If {\tt false}, the effect is reversed.}
1136
1137 \membersection{wxWindow::Move}\label{wxwindowmove}
1138
1139 \func{void}{Move}{\param{int}{ x}, \param{int}{ y}}
1140
1141 \func{void}{Move}{\param{const wxPoint\&}{ pt}}
1142
1143 Moves the window to the given position.
1144
1145 \wxheading{Parameters}
1146
1147 \docparam{x}{Required x position.}
1148
1149 \docparam{y}{Required y position.}
1150
1151 \docparam{pt}{\helpref{wxPoint}{wxpoint} object representing the position.}
1152
1153 \wxheading{Remarks}
1154
1155 Implementations of SetSize can also implicitly implement the
1156 wxWindow::Move function, which is defined in the base wxWindow class
1157 as the call:
1158
1159 \begin{verbatim}
1160 SetSize(x, y, -1, -1, wxSIZE_USE_EXISTING);
1161 \end{verbatim}
1162
1163 \wxheading{See also}
1164
1165 \helpref{wxWindow::SetSize}{wxwindowsetsize}
1166
1167 \pythonnote{In place of a single overloaded method name, wxPython
1168 implements the following methods:\par
1169 \indented{2cm}{\begin{twocollist}
1170 \twocolitem{{\bf Move(point)}}{Accepts a wxPoint}
1171 \twocolitem{{\bf MoveXY(x, y)}}{Accepts a pair of integers}
1172 \end{twocollist}}
1173 }
1174
1175 %% VZ: wxWindow::OnXXX() functions should not be documented but I'm leaving
1176 %% the old docs here in case we want to move any still needed bits to
1177 %% the right location (i.e. probably the corresponding events docs)
1178 %%
1179 %% \membersection{wxWindow::OnActivate}\label{wxwindowonactivate}
1180 %%
1181 %% \func{void}{OnActivate}{\param{wxActivateEvent\&}{ event}}
1182 %%
1183 %% Called when a window is activated or deactivated.
1184 %%
1185 %% \wxheading{Parameters}
1186 %%
1187 %% \docparam{event}{Object containing activation information.}
1188 %%
1189 %% \wxheading{Remarks}
1190 %%
1191 %% If the window is being activated, \helpref{wxActivateEvent::GetActive}{wxactivateeventgetactive} returns {\tt true},
1192 %% otherwise it returns {\tt false} (it is being deactivated).
1193 %%
1194 %% \wxheading{See also}
1195 %%
1196 %% \helpref{wxActivateEvent}{wxactivateevent},\rtfsp
1197 %% \helpref{Event handling overview}{eventhandlingoverview}
1198 %%
1199 %% \membersection{wxWindow::OnChar}\label{wxwindowonchar}
1200 %%
1201 %% \func{void}{OnChar}{\param{wxKeyEvent\&}{ event}}
1202 %%
1203 %% Called when the user has pressed a key that is not a modifier (SHIFT, CONTROL or ALT).
1204 %%
1205 %% \wxheading{Parameters}
1206 %%
1207 %% \docparam{event}{Object containing keypress information. See \helpref{wxKeyEvent}{wxkeyevent} for
1208 %% details about this class.}
1209 %%
1210 %% \wxheading{Remarks}
1211 %%
1212 %% This member function is called in response to a keypress. To intercept this event,
1213 %% use the EVT\_CHAR macro in an event table definition. Your {\bf OnChar} handler may call this
1214 %% default function to achieve default keypress functionality.
1215 %%
1216 %% Note that the ASCII values do not have explicit key codes: they are passed as ASCII
1217 %% values.
1218 %%
1219 %% Note that not all keypresses can be intercepted this way. If you wish to intercept modifier
1220 %% keypresses, then you will need to use \helpref{wxWindow::OnKeyDown}{wxwindowonkeydown} or
1221 %% \helpref{wxWindow::OnKeyUp}{wxwindowonkeyup}.
1222 %%
1223 %% Most, but not all, windows allow keypresses to be intercepted.
1224 %%
1225 %% {\bf Tip:} be sure to call {\tt event.Skip()} for events that you don't process in this function,
1226 %% otherwise menu shortcuts may cease to work under Windows.
1227 %%
1228 %% \wxheading{See also}
1229 %%
1230 %% \helpref{wxWindow::OnKeyDown}{wxwindowonkeydown}, \helpref{wxWindow::OnKeyUp}{wxwindowonkeyup},\rtfsp
1231 %% \helpref{wxKeyEvent}{wxkeyevent}, \helpref{wxWindow::OnCharHook}{wxwindowoncharhook},\rtfsp
1232 %% \helpref{Event handling overview}{eventhandlingoverview}
1233 %%
1234 %% \membersection{wxWindow::OnCharHook}\label{wxwindowoncharhook}
1235 %%
1236 %% \func{void}{OnCharHook}{\param{wxKeyEvent\&}{ event}}
1237 %%
1238 %% This member is called to allow the window to intercept keyboard events
1239 %% before they are processed by child windows.
1240 %%
1241 %% \wxheading{Parameters}
1242 %%
1243 %% \docparam{event}{Object containing keypress information. See \helpref{wxKeyEvent}{wxkeyevent} for
1244 %% details about this class.}
1245 %%
1246 %% \wxheading{Remarks}
1247 %%
1248 %% This member function is called in response to a keypress, if the window is active. To intercept this event,
1249 %% use the EVT\_CHAR\_HOOK macro in an event table definition. If you do not process a particular
1250 %% keypress, call \helpref{wxEvent::Skip}{wxeventskip} to allow default processing.
1251 %%
1252 %% An example of using this function is in the implementation of escape-character processing for wxDialog,
1253 %% where pressing ESC dismisses the dialog by {\bf OnCharHook} 'forging' a cancel button press event.
1254 %%
1255 %% Note that the ASCII values do not have explicit key codes: they are passed as ASCII
1256 %% values.
1257 %%
1258 %% This function is only relevant to top-level windows (frames and dialogs), and under
1259 %% Windows only. Under GTK the normal EVT\_CHAR\_ event has the functionality, i.e.
1260 %% you can intercepts it and if you don't call \helpref{wxEvent::Skip}{wxeventskip}
1261 %% the window won't get the event.
1262 %%
1263 %% \wxheading{See also}
1264 %%
1265 %% \helpref{wxKeyEvent}{wxkeyevent},\rtfsp
1266 %% \helpref{wxWindow::OnCharHook}{wxwindowoncharhook},\rtfsp
1267 %% %% GD: OnXXX functions are not documented
1268 %% %%\helpref{wxApp::OnCharHook}{wxapponcharhook},\rtfsp
1269 %% \helpref{Event handling overview}{eventhandlingoverview}
1270 %%
1271 %% \membersection{wxWindow::OnCommand}\label{wxwindowoncommand}
1272 %%
1273 %% \func{virtual void}{OnCommand}{\param{wxEvtHandler\& }{object}, \param{wxCommandEvent\& }{event}}
1274 %%
1275 %% This virtual member function is called if the control does not handle the command event.
1276 %%
1277 %% \wxheading{Parameters}
1278 %%
1279 %% \docparam{object}{Object receiving the command event.}
1280 %%
1281 %% \docparam{event}{Command event}
1282 %%
1283 %% \wxheading{Remarks}
1284 %%
1285 %% This virtual function is provided mainly for backward compatibility. You can also intercept commands
1286 %% from child controls by using an event table, with identifiers or identifier ranges to identify
1287 %% the control(s) in question.
1288 %%
1289 %% \wxheading{See also}
1290 %%
1291 %% \helpref{wxCommandEvent}{wxcommandevent},\rtfsp
1292 %% \helpref{Event handling overview}{eventhandlingoverview}
1293 %%
1294 %% \membersection{wxWindow::OnClose}\label{wxwindowonclose}
1295 %%
1296 %% \func{virtual bool}{OnClose}{\void}
1297 %%
1298 %% Called when the user has tried to close a a frame
1299 %% or dialog box using the window manager (X) or system menu (Windows).
1300 %%
1301 %% {\bf Note:} This is an obsolete function.
1302 %% It is superseded by the \helpref{wxWindow::OnCloseWindow}{wxwindowonclosewindow} event
1303 %% handler.
1304 %%
1305 %% \wxheading{Return value}
1306 %%
1307 %% If {\tt true} is returned by OnClose, the window will be deleted by the system, otherwise the
1308 %% attempt will be ignored. Do not delete the window from within this handler, although
1309 %% you may delete other windows.
1310 %%
1311 %% \wxheading{See also}
1312 %%
1313 %% \helpref{Window deletion overview}{windowdeletionoverview},\rtfsp
1314 %% \helpref{wxWindow::Close}{wxwindowclose},\rtfsp
1315 %% \helpref{wxWindow::OnCloseWindow}{wxwindowonclosewindow},\rtfsp
1316 %% \helpref{wxCloseEvent}{wxcloseevent}
1317 %%
1318 %% \membersection{wxWindow::OnKeyDown}\label{wxwindowonkeydown}
1319 %%
1320 %% \func{void}{OnKeyDown}{\param{wxKeyEvent\&}{ event}}
1321 %%
1322 %% Called when the user has pressed a key, before it is translated into an ASCII value using other
1323 %% modifier keys that might be pressed at the same time.
1324 %%
1325 %% \wxheading{Parameters}
1326 %%
1327 %% \docparam{event}{Object containing keypress information. See \helpref{wxKeyEvent}{wxkeyevent} for
1328 %% details about this class.}
1329 %%
1330 %% \wxheading{Remarks}
1331 %%
1332 %% This member function is called in response to a key down event. To intercept this event,
1333 %% use the EVT\_KEY\_DOWN macro in an event table definition. Your {\bf OnKeyDown} handler may call this
1334 %% default function to achieve default keypress functionality.
1335 %%
1336 %% Note that not all keypresses can be intercepted this way. If you wish to intercept special
1337 %% keys, such as shift, control, and function keys, then you will need to use \helpref{wxWindow::OnKeyDown}{wxwindowonkeydown} or
1338 %% \helpref{wxWindow::OnKeyUp}{wxwindowonkeyup}.
1339 %%
1340 %% Most, but not all, windows allow keypresses to be intercepted.
1341 %%
1342 %% {\bf Tip:} be sure to call {\tt event.Skip()} for events that you don't process in this function,
1343 %% otherwise menu shortcuts may cease to work under Windows.
1344 %%
1345 %% \wxheading{See also}
1346 %%
1347 %% \helpref{wxWindow::OnChar}{wxwindowonchar}, \helpref{wxWindow::OnKeyUp}{wxwindowonkeyup},\rtfsp
1348 %% \helpref{wxKeyEvent}{wxkeyevent}, \helpref{wxWindow::OnCharHook}{wxwindowoncharhook},\rtfsp
1349 %% \helpref{Event handling overview}{eventhandlingoverview}
1350 %%
1351 %% \membersection{wxWindow::OnKeyUp}\label{wxwindowonkeyup}
1352 %%
1353 %% \func{void}{OnKeyUp}{\param{wxKeyEvent\&}{ event}}
1354 %%
1355 %% Called when the user has released a key.
1356 %%
1357 %% \wxheading{Parameters}
1358 %%
1359 %% \docparam{event}{Object containing keypress information. See \helpref{wxKeyEvent}{wxkeyevent} for
1360 %% details about this class.}
1361 %%
1362 %% \wxheading{Remarks}
1363 %%
1364 %% This member function is called in response to a key up event. To intercept this event,
1365 %% use the EVT\_KEY\_UP macro in an event table definition. Your {\bf OnKeyUp} handler may call this
1366 %% default function to achieve default keypress functionality.
1367 %%
1368 %% Note that not all keypresses can be intercepted this way. If you wish to intercept special
1369 %% keys, such as shift, control, and function keys, then you will need to use \helpref{wxWindow::OnKeyDown}{wxwindowonkeydown} or
1370 %% \helpref{wxWindow::OnKeyUp}{wxwindowonkeyup}.
1371 %%
1372 %% Most, but not all, windows allow key up events to be intercepted.
1373 %%
1374 %% \wxheading{See also}
1375 %%
1376 %% \helpref{wxWindow::OnChar}{wxwindowonchar}, \helpref{wxWindow::OnKeyDown}{wxwindowonkeydown},\rtfsp
1377 %% \helpref{wxKeyEvent}{wxkeyevent}, \helpref{wxWindow::OnCharHook}{wxwindowoncharhook},\rtfsp
1378 %% \helpref{Event handling overview}{eventhandlingoverview}
1379 %%
1380 %% \membersection{wxWindow::OnInitDialog}\label{wxwindowoninitdialog}
1381 %%
1382 %% \func{void}{OnInitDialog}{\param{wxInitDialogEvent\&}{ event}}
1383 %%
1384 %% Default handler for the wxEVT\_INIT\_DIALOG event. Calls \helpref{wxWindow::TransferDataToWindow}{wxwindowtransferdatatowindow}.
1385 %%
1386 %% \wxheading{Parameters}
1387 %%
1388 %% \docparam{event}{Dialog initialisation event.}
1389 %%
1390 %% \wxheading{Remarks}
1391 %%
1392 %% Gives the window the default behaviour of transferring data to child controls via
1393 %% the validator that each control has.
1394 %%
1395 %% \wxheading{See also}
1396 %%
1397 %% \helpref{wxValidator}{wxvalidator}, \helpref{wxWindow::TransferDataToWindow}{wxwindowtransferdatatowindow}
1398 %%
1399 %% \membersection{wxWindow::OnMenuCommand}\label{wxwindowonmenucommand}
1400 %%
1401 %% \func{void}{OnMenuCommand}{\param{wxCommandEvent\& }{event}}
1402 %%
1403 %% Called when a menu command is received from a menu bar.
1404 %%
1405 %% \wxheading{Parameters}
1406 %%
1407 %% \docparam{event}{The menu command event. For more information, see \helpref{wxCommandEvent}{wxcommandevent}.}
1408 %%
1409 %% \wxheading{Remarks}
1410 %%
1411 %% A function with this name doesn't actually exist; you can choose any member function to receive
1412 %% menu command events, using the EVT\_COMMAND macro for individual commands or EVT\_COMMAND\_RANGE for
1413 %% a range of commands.
1414 %%
1415 %% \wxheading{See also}
1416 %%
1417 %% \helpref{wxCommandEvent}{wxcommandevent},\rtfsp
1418 %% \helpref{wxWindow::OnMenuHighlight}{wxwindowonmenuhighlight},\rtfsp
1419 %% \helpref{Event handling overview}{eventhandlingoverview}
1420 %%
1421 %% \membersection{wxWindow::OnMenuHighlight}\label{wxwindowonmenuhighlight}
1422 %%
1423 %% \func{void}{OnMenuHighlight}{\param{wxMenuEvent\& }{event}}
1424 %%
1425 %% Called when a menu select is received from a menu bar: that is, the
1426 %% mouse cursor is over a menu item, but the left mouse button has not been
1427 %% pressed.
1428 %%
1429 %% \wxheading{Parameters}
1430 %%
1431 %% \docparam{event}{The menu highlight event. For more information, see \helpref{wxMenuEvent}{wxmenuevent}.}
1432 %%
1433 %% \wxheading{Remarks}
1434 %%
1435 %% You can choose any member function to receive
1436 %% menu select events, using the EVT\_MENU\_HIGHLIGHT macro for individual menu items or EVT\_MENU\_HIGHLIGHT\_ALL macro
1437 %% for all menu items.
1438 %%
1439 %% The default implementation for \helpref{wxFrame::OnMenuHighlight}{wxframeonmenuhighlight} displays help
1440 %% text in the first field of the status bar.
1441 %%
1442 %% This function was known as {\bf OnMenuSelect} in earlier versions of wxWindows, but this was confusing
1443 %% since a selection is normally a left-click action.
1444 %%
1445 %% \wxheading{See also}
1446 %%
1447 %% \helpref{wxMenuEvent}{wxmenuevent},\rtfsp
1448 %% \helpref{wxWindow::OnMenuCommand}{wxwindowonmenucommand},\rtfsp
1449 %% \helpref{Event handling overview}{eventhandlingoverview}
1450 %%
1451 %%
1452 %% \membersection{wxWindow::OnMouseEvent}\label{wxwindowonmouseevent}
1453 %%
1454 %% \func{void}{OnMouseEvent}{\param{wxMouseEvent\&}{ event}}
1455 %%
1456 %% Called when the user has initiated an event with the
1457 %% mouse.
1458 %%
1459 %% \wxheading{Parameters}
1460 %%
1461 %% \docparam{event}{The mouse event. See \helpref{wxMouseEvent}{wxmouseevent} for
1462 %% more details.}
1463 %%
1464 %% \wxheading{Remarks}
1465 %%
1466 %% Most, but not all, windows respond to this event.
1467 %%
1468 %% To intercept this event, use the EVT\_MOUSE\_EVENTS macro in an event table definition, or individual
1469 %% mouse event macros such as EVT\_LEFT\_DOWN.
1470 %%
1471 %% \wxheading{See also}
1472 %%
1473 %% \helpref{wxMouseEvent}{wxmouseevent},\rtfsp
1474 %% \helpref{Event handling overview}{eventhandlingoverview}
1475 %%
1476 %% \membersection{wxWindow::OnMove}\label{wxwindowonmove}
1477 %%
1478 %% \func{void}{OnMove}{\param{wxMoveEvent\& }{event}}
1479 %%
1480 %% Called when a window is moved.
1481 %%
1482 %% \wxheading{Parameters}
1483 %%
1484 %% \docparam{event}{The move event. For more information, see \helpref{wxMoveEvent}{wxmoveevent}.}
1485 %%
1486 %% \wxheading{Remarks}
1487 %%
1488 %% Use the EVT\_MOVE macro to intercept move events.
1489 %%
1490 %% \wxheading{Remarks}
1491 %%
1492 %% Not currently implemented.
1493 %%
1494 %% \wxheading{See also}
1495 %%
1496 %% \helpref{wxMoveEvent}{wxmoveevent},\rtfsp
1497 %% \helpref{wxFrame::OnSize}{wxframeonsize},\rtfsp
1498 %% \helpref{Event handling overview}{eventhandlingoverview}
1499 %%
1500 %% \membersection{wxWindow::OnPaint}\label{wxwindowonpaint}
1501 %%
1502 %% \func{void}{OnPaint}{\param{wxPaintEvent\& }{event}}
1503 %%
1504 %% Sent to the event handler when the window must be refreshed.
1505 %%
1506 %% \wxheading{Parameters}
1507 %%
1508 %% \docparam{event}{Paint event. For more information, see \helpref{wxPaintEvent}{wxpaintevent}.}
1509 %%
1510 %% \wxheading{Remarks}
1511 %%
1512 %% Use the EVT\_PAINT macro in an event table definition to intercept paint events.
1513 %%
1514 %% Note that In a paint event handler, the application must {\it always} create a \helpref{wxPaintDC}{wxpaintdc} object,
1515 %% even if you do not use it. Otherwise, under MS Windows, refreshing for this and other windows will go wrong.
1516 %%
1517 %% For example:
1518 %%
1519 %% \small{%
1520 %% \begin{verbatim}
1521 %% void MyWindow::OnPaint(wxPaintEvent\& event)
1522 %% {
1523 %% wxPaintDC dc(this);
1524 %%
1525 %% DrawMyDocument(dc);
1526 %% }
1527 %% \end{verbatim}
1528 %% }%
1529 %%
1530 %% You can optimize painting by retrieving the rectangles
1531 %% that have been damaged and only repainting these. The rectangles are in
1532 %% terms of the client area, and are unscrolled, so you will need to do
1533 %% some calculations using the current view position to obtain logical,
1534 %% scrolled units.
1535 %%
1536 %% Here is an example of using the \helpref{wxRegionIterator}{wxregioniterator} class:
1537 %%
1538 %% {\small%
1539 %% \begin{verbatim}
1540 %% // Called when window needs to be repainted.
1541 %% void MyWindow::OnPaint(wxPaintEvent\& event)
1542 %% {
1543 %% wxPaintDC dc(this);
1544 %%
1545 %% // Find Out where the window is scrolled to
1546 %% int vbX,vbY; // Top left corner of client
1547 %% GetViewStart(&vbX,&vbY);
1548 %%
1549 %% int vX,vY,vW,vH; // Dimensions of client area in pixels
1550 %% wxRegionIterator upd(GetUpdateRegion()); // get the update rect list
1551 %%
1552 %% while (upd)
1553 %% {
1554 %% vX = upd.GetX();
1555 %% vY = upd.GetY();
1556 %% vW = upd.GetW();
1557 %% vH = upd.GetH();
1558 %%
1559 %% // Alternatively we can do this:
1560 %% // wxRect rect;
1561 %% // upd.GetRect(&rect);
1562 %%
1563 %% // Repaint this rectangle
1564 %% ...some code...
1565 %%
1566 %% upd ++ ;
1567 %% }
1568 %% }
1569 %% \end{verbatim}
1570 %% }%
1571 %%
1572 %% \wxheading{See also}
1573 %%
1574 %% \helpref{wxPaintEvent}{wxpaintevent},\rtfsp
1575 %% \helpref{wxPaintDC}{wxpaintdc},\rtfsp
1576 %% \helpref{Event handling overview}{eventhandlingoverview}
1577 %%
1578 %% \membersection{wxWindow::OnScroll}\label{wxwindowonscroll}
1579 %%
1580 %% \func{void}{OnScroll}{\param{wxScrollWinEvent\& }{event}}
1581 %%
1582 %% Called when a scroll window event is received from one of the window's built-in scrollbars.
1583 %%
1584 %% \wxheading{Parameters}
1585 %%
1586 %% \docparam{event}{Command event. Retrieve the new scroll position by
1587 %% calling \helpref{wxScrollEvent::GetPosition}{wxscrolleventgetposition}, and the
1588 %% scrollbar orientation by calling \helpref{wxScrollEvent::GetOrientation}{wxscrolleventgetorientation}.}
1589 %%
1590 %% \wxheading{Remarks}
1591 %%
1592 %% Note that it is not possible to distinguish between horizontal and vertical scrollbars
1593 %% until the function is executing (you can't have one function for vertical, another
1594 %% for horizontal events).
1595 %%
1596 %% \wxheading{See also}
1597 %%
1598 %% \helpref{wxScrollWinEvent}{wxscrollwinevent},\rtfsp
1599 %% \helpref{Event handling overview}{eventhandlingoverview}
1600 %%
1601 %% \membersection{wxWindow::OnSetFocus}\label{wxwindowonsetfocus}
1602 %%
1603 %% \func{void}{OnSetFocus}{\param{wxFocusEvent\& }{event}}
1604 %%
1605 %% Called when a window's focus is being set.
1606 %%
1607 %% \wxheading{Parameters}
1608 %%
1609 %% \docparam{event}{The focus event. For more information, see \helpref{wxFocusEvent}{wxfocusevent}.}
1610 %%
1611 %% \wxheading{Remarks}
1612 %%
1613 %% To intercept this event, use the macro EVT\_SET\_FOCUS in an event table definition.
1614 %%
1615 %% Most, but not all, windows respond to this event.
1616 %%
1617 %% \wxheading{See also}
1618 %%
1619 %% \helpref{wxFocusEvent}{wxfocusevent}, \helpref{wxWindow::OnKillFocus}{wxwindowonkillfocus},\rtfsp
1620 %% \helpref{Event handling overview}{eventhandlingoverview}
1621 %%
1622 %% \membersection{wxWindow::OnSize}\label{wxwindowonsize}
1623 %%
1624 %% \func{void}{OnSize}{\param{wxSizeEvent\& }{event}}
1625 %%
1626 %% Called when the window has been resized. This is not a virtual function; you should
1627 %% provide your own non-virtual OnSize function and direct size events to it using EVT\_SIZE
1628 %% in an event table definition.
1629 %%
1630 %% \wxheading{Parameters}
1631 %%
1632 %% \docparam{event}{Size event. For more information, see \helpref{wxSizeEvent}{wxsizeevent}.}
1633 %%
1634 %% \wxheading{Remarks}
1635 %%
1636 %% You may wish to use this for frames to resize their child windows as appropriate.
1637 %%
1638 %% Note that the size passed is of
1639 %% the whole window: call \helpref{wxWindow::GetClientSize}{wxwindowgetclientsize} for the area which may be
1640 %% used by the application.
1641 %%
1642 %% When a window is resized, usually only a small part of the window is damaged and you
1643 %% may only need to repaint that area. However, if your drawing depends on the size of the window,
1644 %% you may need to clear the DC explicitly and repaint the whole window. In which case, you
1645 %% may need to call \helpref{wxWindow::Refresh}{wxwindowrefresh} to invalidate the entire window.
1646 %%
1647 %% \wxheading{See also}
1648 %%
1649 %% \helpref{wxSizeEvent}{wxsizeevent},\rtfsp
1650 %% \helpref{Event handling overview}{eventhandlingoverview}
1651 %%
1652 %% \membersection{wxWindow::OnSysColourChanged}\label{wxwindowonsyscolourchanged}
1653 %%
1654 %% \func{void}{OnSysColourChanged}{\param{wxOnSysColourChangedEvent\& }{event}}
1655 %%
1656 %% Called when the user has changed the system colours. Windows only.
1657 %%
1658 %% \wxheading{Parameters}
1659 %%
1660 %% \docparam{event}{System colour change event. For more information, see \helpref{wxSysColourChangedEvent}{wxsyscolourchangedevent}.}
1661 %%
1662 %% \wxheading{See also}
1663 %%
1664 %% \helpref{wxSysColourChangedEvent}{wxsyscolourchangedevent},\rtfsp
1665 %% \helpref{Event handling overview}{eventhandlingoverview}
1666
1667 \membersection{wxWindow::PopEventHandler}\label{wxwindowpopeventhandler}
1668
1669 \constfunc{wxEvtHandler*}{PopEventHandler}{\param{bool }{deleteHandler = {\tt false}}}
1670
1671 Removes and returns the top-most event handler on the event handler stack.
1672
1673 \wxheading{Parameters}
1674
1675 \docparam{deleteHandler}{If this is {\tt true}, the handler will be deleted after it is removed. The
1676 default value is {\tt false}.}
1677
1678 \wxheading{See also}
1679
1680 \helpref{wxWindow::SetEventHandler}{wxwindowseteventhandler},\rtfsp
1681 \helpref{wxWindow::GetEventHandler}{wxwindowgeteventhandler},\rtfsp
1682 \helpref{wxWindow::PushEventHandler}{wxwindowpusheventhandler},\rtfsp
1683 \helpref{wxEvtHandler::ProcessEvent}{wxevthandlerprocessevent},\rtfsp
1684 \helpref{wxEvtHandler}{wxevthandler}\rtfsp
1685
1686 \membersection{wxWindow::PopupMenu}\label{wxwindowpopupmenu}
1687
1688 \func{bool}{PopupMenu}{\param{wxMenu* }{menu}, \param{const wxPoint\& }{pos}}
1689
1690 \func{bool}{PopupMenu}{\param{wxMenu* }{menu}, \param{int }{x}, \param{int }{y}}
1691
1692 Pops up the given menu at the specified coordinates, relative to this
1693 window, and returns control when the user has dismissed the menu. If a
1694 menu item is selected, the corresponding menu event is generated and will be
1695 processed as usually.
1696
1697 \wxheading{Parameters}
1698
1699 \docparam{menu}{Menu to pop up.}
1700
1701 \docparam{pos}{The position where the menu will appear.}
1702
1703 \docparam{x}{Required x position for the menu to appear.}
1704
1705 \docparam{y}{Required y position for the menu to appear.}
1706
1707 \wxheading{See also}
1708
1709 \helpref{wxMenu}{wxmenu}
1710
1711 \wxheading{Remarks}
1712
1713 Just before the menu is popped up, \helpref{wxMenu::UpdateUI}{wxmenuupdateui} is called
1714 to ensure that the menu items are in the correct state. The menu does not get deleted
1715 by the window.
1716
1717 \pythonnote{In place of a single overloaded method name, wxPython
1718 implements the following methods:\par
1719 \indented{2cm}{\begin{twocollist}
1720 \twocolitem{{\bf PopupMenu(menu, point)}}{Specifies position with a wxPoint}
1721 \twocolitem{{\bf PopupMenuXY(menu, x, y)}}{Specifies position with two integers (x, y)}
1722 \end{twocollist}}
1723 }
1724
1725 \membersection{wxWindow::PushEventHandler}\label{wxwindowpusheventhandler}
1726
1727 \func{void}{PushEventHandler}{\param{wxEvtHandler* }{handler}}
1728
1729 Pushes this event handler onto the event stack for the window.
1730
1731 \wxheading{Parameters}
1732
1733 \docparam{handler}{Specifies the handler to be pushed.}
1734
1735 \wxheading{Remarks}
1736
1737 An event handler is an object that is capable of processing the events
1738 sent to a window. By default, the window is its own event handler, but
1739 an application may wish to substitute another, for example to allow
1740 central implementation of event-handling for a variety of different
1741 window classes.
1742
1743 \helpref{wxWindow::PushEventHandler}{wxwindowpusheventhandler} allows
1744 an application to set up a chain of event handlers, where an event not handled by one event handler is
1745 handed to the next one in the chain. Use \helpref{wxWindow::PopEventHandler}{wxwindowpopeventhandler} to
1746 remove the event handler.
1747
1748 \wxheading{See also}
1749
1750 \helpref{wxWindow::SetEventHandler}{wxwindowseteventhandler},\rtfsp
1751 \helpref{wxWindow::GetEventHandler}{wxwindowgeteventhandler},\rtfsp
1752 \helpref{wxWindow::PopEventHandler}{wxwindowpusheventhandler},\rtfsp
1753 \helpref{wxEvtHandler::ProcessEvent}{wxevthandlerprocessevent},\rtfsp
1754 \helpref{wxEvtHandler}{wxevthandler}
1755
1756 \membersection{wxWindow::Raise}\label{wxwindowraise}
1757
1758 \func{void}{Raise}{\void}
1759
1760 Raises the window to the top of the window hierarchy if it is a managed window (dialog
1761 or frame).
1762
1763 \membersection{wxWindow::Refresh}\label{wxwindowrefresh}
1764
1765 \func{virtual void}{Refresh}{\param{bool}{ eraseBackground = {\tt true}}, \param{const wxRect* }{rect
1766 = NULL}}
1767
1768 Causes a message or event to be generated to repaint the
1769 window.
1770
1771 \wxheading{Parameters}
1772
1773 \docparam{eraseBackground}{If {\tt true}, the background will be
1774 erased.}
1775
1776 \docparam{rect}{If non-NULL, only the given rectangle will
1777 be treated as damaged.}
1778
1779 \wxheading{See also}
1780
1781 \helpref{wxWindow::RefreshRect}{wxwindowrefreshrect}
1782
1783 \membersection{wxWindow::RefreshRect}\label{wxwindowrefreshrect}
1784
1785 \func{virtual void}{Refresh}{\param{const wxRect\& }{rect}}
1786
1787 Redraws the contents of the given rectangle: the area inside it will be
1788 repainted.
1789
1790 This is the same as \helpref{Refresh}{wxwindowrefresh} but has a nicer syntax.
1791
1792 \membersection{wxWindow::ReleaseMouse}\label{wxwindowreleasemouse}
1793
1794 \func{virtual void}{ReleaseMouse}{\void}
1795
1796 Releases mouse input captured with \helpref{wxWindow::CaptureMouse}{wxwindowcapturemouse}.
1797
1798 \wxheading{See also}
1799
1800 \helpref{wxWindow::CaptureMouse}{wxwindowcapturemouse},
1801 \helpref{wxWindow::HasCapture}{wxwindowhascapture},
1802 \helpref{wxWindow::ReleaseMouse}{wxwindowreleasemouse},
1803 \helpref{wxMouseCaptureChangedEvent}{wxmousecapturechangedevent}
1804
1805 \membersection{wxWindow::RemoveChild}\label{wxwindowremovechild}
1806
1807 \func{virtual void}{RemoveChild}{\param{wxWindow* }{child}}
1808
1809 Removes a child window. This is called automatically by window deletion
1810 functions so should not be required by the application programmer.
1811
1812 \wxheading{Parameters}
1813
1814 \docparam{child}{Child window to remove.}
1815
1816 \membersection{wxWindow::RemoveEventHandler}\label{wxwindowremoveeventhandler}
1817
1818 \func{bool}{RemoveEventHandler}{\param{wxEvtHandler *}{handler}}
1819
1820 Find the given {\it handler} in the windows event handler chain and remove (but
1821 not delete) it from it.
1822
1823 \wxheading{Parameters}
1824
1825 \docparam{handler}{The event handler to remove, must be non {\tt NULL} and
1826 must be present in this windows event handlers chain}
1827
1828 \wxheading{Return value}
1829
1830 Returns {\tt true} if it was found and {\tt false} otherwise (this also results
1831 in an assert failure so this function should only be called when the
1832 handler is supposed to be there).
1833
1834 \wxheading{See also}
1835
1836 \helpref{PushEventHandler}{wxwindowpusheventhandler},\rtfsp
1837 \helpref{PopEventHandler}{wxwindowpopeventhandler}
1838
1839 \membersection{wxWindow::Reparent}\label{wxwindowreparent}
1840
1841 \func{virtual bool}{Reparent}{\param{wxWindow* }{newParent}}
1842
1843 Reparents the window, i.e the window will be removed from its
1844 current parent window (e.g. a non-standard toolbar in a wxFrame)
1845 and then re-inserted into another. Available on Windows and GTK.
1846
1847 \wxheading{Parameters}
1848
1849 \docparam{newParent}{New parent.}
1850
1851 \membersection{wxWindow::ScreenToClient}\label{wxwindowscreentoclient}
1852
1853 \constfunc{virtual void}{ScreenToClient}{\param{int* }{x}, \param{int* }{y}}
1854
1855 \constfunc{virtual wxPoint}{ScreenToClient}{\param{const wxPoint\& }{pt}}
1856
1857 Converts from screen to client window coordinates.
1858
1859 \wxheading{Parameters}
1860
1861 \docparam{x}{Stores the screen x coordinate and receives the client x coordinate.}
1862
1863 \docparam{y}{Stores the screen x coordinate and receives the client x coordinate.}
1864
1865 \docparam{pt}{The screen position for the second form of the function.}
1866
1867 \pythonnote{In place of a single overloaded method name, wxPython
1868 implements the following methods:\par
1869 \indented{2cm}{\begin{twocollist}
1870 \twocolitem{{\bf ScreenToClient(point)}}{Accepts and returns a wxPoint}
1871 \twocolitem{{\bf ScreenToClientXY(x, y)}}{Returns a 2-tuple, (x, y)}
1872 \end{twocollist}}
1873 }
1874
1875 \membersection{wxWindow::ScrollLines}\label{wxwindowscrolllines}
1876
1877 \func{virtual bool}{ScrollLines}{\param{int }{lines}}
1878
1879 Scrolls the window by the given number of lines down (if {\it lines} is
1880 positive) or up.
1881
1882 \wxheading{Return value}
1883
1884 Returns {\tt true} if the window was scrolled, {\tt false} if it was already
1885 on top/bottom and nothing was done.
1886
1887 \wxheading{Remarks}
1888
1889 This function is currently only implemented under MSW and wxTextCtrl under
1890 wxGTK (it also works for wxScrolledWindow derived classes under all
1891 platforms).
1892
1893 \wxheading{See also}
1894
1895 \helpref{ScrollPages}{wxwindowscrollpages}
1896
1897 \membersection{wxWindow::ScrollPages}\label{wxwindowscrollpages}
1898
1899 \func{virtual bool}{ScrollPages}{\param{int }{pages}}
1900
1901 Scrolls the window by the given number of pages down (if {\it pages} is
1902 positive) or up.
1903
1904 \wxheading{Return value}
1905
1906 Returns {\tt true} if the window was scrolled, {\tt false} if it was already
1907 on top/bottom and nothing was done.
1908
1909 \wxheading{Remarks}
1910
1911 This function is currently only implemented under MSW and wxTextCtrl under
1912 wxGTK (it also works for wxScrolledWindow derived classes under all
1913 platforms).
1914
1915 \wxheading{See also}
1916
1917 \helpref{ScrollLines}{wxwindowscrolllines}
1918
1919 \membersection{wxWindow::ScrollWindow}\label{wxwindowscrollwindow}
1920
1921 \func{virtual void}{ScrollWindow}{\param{int }{dx}, \param{int }{dy}, \param{const wxRect*}{ rect = NULL}}
1922
1923 Physically scrolls the pixels in the window and move child windows accordingly.
1924
1925 \wxheading{Parameters}
1926
1927 \docparam{dx}{Amount to scroll horizontally.}
1928
1929 \docparam{dy}{Amount to scroll vertically.}
1930
1931 \docparam{rect}{Rectangle to invalidate. If this is NULL, the whole window is invalidated. If you
1932 pass a rectangle corresponding to the area of the window exposed by the scroll, your painting handler
1933 can optimize painting by checking for the invalidated region. This parameter is ignored under GTK.}
1934
1935 \wxheading{Remarks}
1936
1937 Use this function to optimise your scrolling implementations, to minimise the area that must be
1938 redrawn. Note that it is rarely required to call this function from a user program.
1939
1940 \membersection{wxWindow::SetAcceleratorTable}\label{wxwindowsetacceleratortable}
1941
1942 \func{virtual void}{SetAcceleratorTable}{\param{const wxAcceleratorTable\&}{ accel}}
1943
1944 Sets the accelerator table for this window. See \helpref{wxAcceleratorTable}{wxacceleratortable}.
1945
1946 \membersection{wxWindow::SetAccessible}\label{wxwindowsetaccessible}
1947
1948 \func{void}{SetAccessible}{\param{wxAccessibile*}{ accessible}}
1949
1950 Sets the accessible for this window. Any existing accessible for this window
1951 will be deleted first, if not identical to {\it accessible}.
1952
1953 See also \helpref{wxAccessible}{wxaccessible}.
1954
1955 \membersection{wxWindow::SetAutoLayout}\label{wxwindowsetautolayout}
1956
1957 \func{void}{SetAutoLayout}{\param{bool}{ autoLayout}}
1958
1959 Determines whether the \helpref{wxWindow::Layout}{wxwindowlayout} function will
1960 be called automatically when the window is resized. It is called implicitly by
1961 \helpref{wxWindow::SetSizer}{wxwindowsetsizer} but if you use
1962 \helpref{wxWindow::SetConstraints}{wxwindowsetconstraints} you should call it
1963 manually or otherwise the window layout won't be correctly updated when its
1964 size changes.
1965
1966 \wxheading{Parameters}
1967
1968 \docparam{autoLayout}{Set this to {\tt true} if you wish the Layout function to be called
1969 from within wxWindow::OnSize functions.}
1970
1971 \wxheading{See also}
1972
1973 \helpref{wxWindow::SetConstraints}{wxwindowsetconstraints}
1974
1975 \membersection{wxWindow::SetBackgroundColour}\label{wxwindowsetbackgroundcolour}
1976
1977 \func{virtual void}{SetBackgroundColour}{\param{const wxColour\& }{colour}}
1978
1979 Sets the background colour of the window.
1980
1981 \wxheading{Parameters}
1982
1983 \docparam{colour}{The colour to be used as the background colour.}
1984
1985 \wxheading{Remarks}
1986
1987 The background colour is usually painted by the default\rtfsp
1988 \helpref{wxEraseEvent}{wxeraseevent} event handler function
1989 under Windows and automatically under GTK.
1990
1991 Note that setting the background colour does not cause an immediate refresh, so you
1992 may wish to call \helpref{wxWindow::Clear}{wxwindowclear} or \helpref{wxWindow::Refresh}{wxwindowrefresh} after
1993 calling this function.
1994
1995 Use this function with care under GTK as the new appearance of the window might
1996 not look equally well when used with "Themes", i.e GTK's ability to change its
1997 look as the user wishes with run-time loadable modules.
1998
1999 \wxheading{See also}
2000
2001 \helpref{wxWindow::GetBackgroundColour}{wxwindowgetbackgroundcolour},\rtfsp
2002 \helpref{wxWindow::SetForegroundColour}{wxwindowsetforegroundcolour},\rtfsp
2003 \helpref{wxWindow::GetForegroundColour}{wxwindowgetforegroundcolour},\rtfsp
2004 \helpref{wxWindow::Clear}{wxwindowclear},\rtfsp
2005 \helpref{wxWindow::Refresh}{wxwindowrefresh},\rtfsp
2006 \helpref{wxEraseEvent}{wxeraseevent}
2007
2008 \membersection{wxWindow::SetCaret}\label{wxwindowsetcaret}
2009
2010 \constfunc{void}{SetCaret}{\param{wxCaret *}{caret}}
2011
2012 Sets the \helpref{caret}{wxcaret} associated with the window.
2013
2014 \membersection{wxWindow::SetClientSize}\label{wxwindowsetclientsize}
2015
2016 \func{virtual void}{SetClientSize}{\param{int}{ width}, \param{int}{ height}}
2017
2018 \func{virtual void}{SetClientSize}{\param{const wxSize\&}{ size}}
2019
2020 This sets the size of the window client area in pixels. Using this function to size a window
2021 tends to be more device-independent than \helpref{wxWindow::SetSize}{wxwindowsetsize}, since the application need not
2022 worry about what dimensions the border or title bar have when trying to fit the window
2023 around panel items, for example.
2024
2025 \wxheading{Parameters}
2026
2027 \docparam{width}{The required client area width.}
2028
2029 \docparam{height}{The required client area height.}
2030
2031 \docparam{size}{The required client size.}
2032
2033 \pythonnote{In place of a single overloaded method name, wxPython
2034 implements the following methods:\par
2035 \indented{2cm}{\begin{twocollist}
2036 \twocolitem{{\bf SetClientSize(size)}}{Accepts a wxSize}
2037 \twocolitem{{\bf SetClientSizeWH(width, height)}}{}
2038 \end{twocollist}}
2039 }
2040
2041 \membersection{wxWindow::SetContainingSizer}\label{wxwindowsetcontainingsizer}
2042
2043 \func{void}{SetContainingSizer}{\param{wxSizer* }{sizer}}
2044
2045 This normally does not need to be called by user code. It is called
2046 when a window is added to a sizer, and is used so the window can
2047 remove itself from the sizer when it is destroyed.
2048
2049 \membersection{wxWindow::SetCursor}\label{wxwindowsetcursor}
2050
2051 \func{virtual void}{SetCursor}{\param{const wxCursor\&}{cursor}}
2052
2053 % VZ: the docs are correct, if the code doesn't behave like this, it must be
2054 % changed
2055 Sets the window's cursor. Notice that the window cursor also sets it for the
2056 children of the window implicitly.
2057
2058 The {\it cursor} may be {\tt wxNullCursor} in which case the window cursor will
2059 be reset back to default.
2060
2061 \wxheading{Parameters}
2062
2063 \docparam{cursor}{Specifies the cursor that the window should normally display.}
2064
2065 \wxheading{See also}
2066
2067 \helpref{::wxSetCursor}{wxsetcursor}, \helpref{wxCursor}{wxcursor}
2068
2069 \membersection{wxWindow::SetConstraints}\label{wxwindowsetconstraints}
2070
2071 \func{void}{SetConstraints}{\param{wxLayoutConstraints* }{constraints}}
2072
2073 Sets the window to have the given layout constraints. The window
2074 will then own the object, and will take care of its deletion.
2075 If an existing layout constraints object is already owned by the
2076 window, it will be deleted.
2077
2078 \wxheading{Parameters}
2079
2080 \docparam{constraints}{The constraints to set. Pass NULL to disassociate and delete the window's
2081 constraints.}
2082
2083 \wxheading{Remarks}
2084
2085 You must call \helpref{wxWindow::SetAutoLayout}{wxwindowsetautolayout} to tell a window to use
2086 the constraints automatically in OnSize; otherwise, you must override OnSize and call Layout()
2087 explicitly. When setting both a wxLayoutConstraints and a \helpref{wxSizer}{wxsizer}, only the
2088 sizer will have effect.
2089
2090 \membersection{wxWindow::SetDropTarget}\label{wxwindowsetdroptarget}
2091
2092 \func{void}{SetDropTarget}{\param{wxDropTarget*}{ target}}
2093
2094 Associates a drop target with this window.
2095
2096 If the window already has a drop target, it is deleted.
2097
2098 \wxheading{See also}
2099
2100 \helpref{wxWindow::GetDropTarget}{wxwindowgetdroptarget},
2101 \helpref{Drag and drop overview}{wxdndoverview}
2102
2103 \membersection{wxWindow::SetEventHandler}\label{wxwindowseteventhandler}
2104
2105 \func{void}{SetEventHandler}{\param{wxEvtHandler* }{handler}}
2106
2107 Sets the event handler for this window.
2108
2109 \wxheading{Parameters}
2110
2111 \docparam{handler}{Specifies the handler to be set.}
2112
2113 \wxheading{Remarks}
2114
2115 An event handler is an object that is capable of processing the events
2116 sent to a window. By default, the window is its own event handler, but
2117 an application may wish to substitute another, for example to allow
2118 central implementation of event-handling for a variety of different
2119 window classes.
2120
2121 It is usually better to use \helpref{wxWindow::PushEventHandler}{wxwindowpusheventhandler} since
2122 this sets up a chain of event handlers, where an event not handled by one event handler is
2123 handed to the next one in the chain.
2124
2125 \wxheading{See also}
2126
2127 \helpref{wxWindow::GetEventHandler}{wxwindowgeteventhandler},\rtfsp
2128 \helpref{wxWindow::PushEventHandler}{wxwindowpusheventhandler},\rtfsp
2129 \helpref{wxWindow::PopEventHandler}{wxwindowpusheventhandler},\rtfsp
2130 \helpref{wxEvtHandler::ProcessEvent}{wxevthandlerprocessevent},\rtfsp
2131 \helpref{wxEvtHandler}{wxevthandler}
2132
2133 \membersection{wxWindow::SetExtraStyle}\label{wxwindowsetextrastyle}
2134
2135 \func{void}{SetExtraStyle}{\param{long }{exStyle}}
2136
2137 Sets the extra style bits for the window. The currently defined extra style
2138 bits are:
2139
2140 \twocolwidtha{5cm}%
2141 \begin{twocollist}\itemsep=0pt
2142 \twocolitem{\windowstyle{wxWS\_EX\_VALIDATE\_RECURSIVELY}}{TransferDataTo/FromWindow()
2143 and Validate() methods will recursively descend into all children of the
2144 window if it has this style flag set.}
2145 \twocolitem{\windowstyle{wxWS\_EX\_BLOCK\_EVENTS}}{Normally, the command
2146 events are propagated upwards to the window parent recursively until a handler
2147 for them is found. Using this style allows to prevent them from being
2148 propagated beyond this window. Notice that wxDialog has this style on by
2149 default for the reasons explained in the
2150 \helpref{event processing overview}{eventprocessing}.}
2151 \twocolitem{\windowstyle{wxWS\_EX\_TRANSIENT}}{This can be used to prevent a
2152 window from being used as an implicit parent for the dialogs which were
2153 created without a parent. It is useful for the windows which can disappear at
2154 any moment as creating children of such windows results in fatal problems.}
2155 \twocolitem{\windowstyle{wxFRAME\_EX\_CONTEXTHELP}}{Under Windows, puts a query button on the
2156 caption. When pressed, Windows will go into a context-sensitive help mode and wxWindows will send
2157 a wxEVT\_HELP event if the user clicked on an application window.
2158 This style cannot be used together with wxMAXIMIZE\_BOX or wxMINIMIZE\_BOX, so
2159 you should use the style of
2160 {\tt wxDEFAULT\_FRAME\_STYLE \& \textasciitilde(wxMINIMIZE\_BOX | wxMAXIMIZE\_BOX)} for the
2161 frames having this style (the dialogs don't have minimize nor maximize box by
2162 default)}
2163 \end{twocollist}
2164
2165 \membersection{wxWindow::SetFocus}\label{wxwindowsetfocus}
2166
2167 \func{virtual void}{SetFocus}{\void}
2168
2169 This sets the window to receive keyboard input.
2170
2171 \wxheading{See also}
2172
2173 \helpref{wxFocusEvent}{wxfocusevent}
2174
2175 \membersection{wxWindow::SetFocusFromKbd}\label{wxwindowsetfocusfromkbd}
2176
2177 \func{virtual void}{SetFocusFromKbd}{\void}
2178
2179 This function is called by wxWindows keyboard navigation code when the user
2180 gives the focus to this window from keyboard (e.g. using {\tt TAB} key).
2181 By default this method simply calls \helpref{SetFocus}{wxwindowsetfocus} but
2182 can be overridden to do something in addition to this in the derived classes.
2183
2184 \membersection{wxWindow::SetFont}\label{wxwindowsetfont}
2185
2186 \func{void}{SetFont}{\param{const wxFont\& }{font}}
2187
2188 Sets the font for this window.
2189
2190 \wxheading{Parameters}
2191
2192 \docparam{font}{Font to associate with this window.}
2193
2194 \wxheading{See also}
2195
2196 \helpref{wxWindow::GetFont}{wxwindowgetfont}
2197
2198 \membersection{wxWindow::SetForegroundColour}\label{wxwindowsetforegroundcolour}
2199
2200 \func{virtual void}{SetForegroundColour}{\param{const wxColour\& }{colour}}
2201
2202 Sets the foreground colour of the window.
2203
2204 \wxheading{Parameters}
2205
2206 \docparam{colour}{The colour to be used as the foreground colour.}
2207
2208 \wxheading{Remarks}
2209
2210 The interpretation of foreground colour is open to interpretation according
2211 to the window class; it may be the text colour or other colour, or it may not
2212 be used at all.
2213
2214 Note that when using this functions under GTK, you will disable the so called "themes",
2215 i.e. the user chosen appearance of windows and controls, including the themes of
2216 their parent windows.
2217
2218 \wxheading{See also}
2219
2220 \helpref{wxWindow::GetForegroundColour}{wxwindowgetforegroundcolour},\rtfsp
2221 \helpref{wxWindow::SetBackgroundColour}{wxwindowsetbackgroundcolour},\rtfsp
2222 \helpref{wxWindow::GetBackgroundColour}{wxwindowgetbackgroundcolour}
2223
2224 \membersection{wxWindow::SetHelpText}\label{wxwindowsethelptext}
2225
2226 \func{virtual void}{SetHelpText}{\param{const wxString\& }{helpText}}
2227
2228 Sets the help text to be used as context-sensitive help for this window.
2229
2230 Note that the text is actually stored by the current \helpref{wxHelpProvider}{wxhelpprovider} implementation,
2231 and not in the window object itself.
2232
2233 \wxheading{See also}
2234
2235 \helpref{GetHelpText}{wxwindowgethelptext}, \helpref{wxHelpProvider}{wxhelpprovider}
2236
2237 \membersection{wxWindow::SetId}\label{wxwindowsetid}
2238
2239 \func{void}{SetId}{\param{int}{ id}}
2240
2241 Sets the identifier of the window.
2242
2243 \wxheading{Remarks}
2244
2245 Each window has an integer identifier. If the application has not provided one,
2246 an identifier will be generated. Normally, the identifier should be provided
2247 on creation and should not be modified subsequently.
2248
2249 \wxheading{See also}
2250
2251 \helpref{wxWindow::GetId}{wxwindowgetid},\rtfsp
2252 \helpref{Window identifiers}{windowids}
2253
2254 \membersection{wxWindow::SetName}\label{wxwindowsetname}
2255
2256 \func{virtual void}{SetName}{\param{const wxString\& }{name}}
2257
2258 Sets the window's name.
2259
2260 \wxheading{Parameters}
2261
2262 \docparam{name}{A name to set for the window.}
2263
2264 \wxheading{See also}
2265
2266 \helpref{wxWindow::GetName}{wxwindowgetname}
2267
2268 \membersection{wxWindow::SetPalette}\label{wxwindowsetpalette}
2269
2270 \func{virtual void}{SetPalette}{\param{wxPalette* }{palette}}
2271
2272 Obsolete - use \helpref{wxDC::SetPalette}{wxdcsetpalette} instead.
2273
2274 \membersection{wxWindow::SetScrollbar}\label{wxwindowsetscrollbar}
2275
2276 \func{virtual void}{SetScrollbar}{\param{int }{orientation}, \param{int }{position},\rtfsp
2277 \param{int }{thumbSize}, \param{int }{range},\rtfsp
2278 \param{bool }{refresh = {\tt true}}}
2279
2280 Sets the scrollbar properties of a built-in scrollbar.
2281
2282 \wxheading{Parameters}
2283
2284 \docparam{orientation}{Determines the scrollbar whose page size is to be set. May be wxHORIZONTAL or wxVERTICAL.}
2285
2286 \docparam{position}{The position of the scrollbar in scroll units.}
2287
2288 \docparam{thumbSize}{The size of the thumb, or visible portion of the scrollbar, in scroll units.}
2289
2290 \docparam{range}{The maximum position of the scrollbar.}
2291
2292 \docparam{refresh}{{\tt true} to redraw the scrollbar, {\tt false} otherwise.}
2293
2294 \wxheading{Remarks}
2295
2296 Let's say you wish to display 50 lines of text, using the same font.
2297 The window is sized so that you can only see 16 lines at a time.
2298
2299 You would use:
2300
2301 {\small%
2302 \begin{verbatim}
2303 SetScrollbar(wxVERTICAL, 0, 16, 50);
2304 \end{verbatim}
2305 }
2306
2307 Note that with the window at this size, the thumb position can never go
2308 above 50 minus 16, or 34.
2309
2310 You can determine how many lines are currently visible by dividing the current view
2311 size by the character height in pixels.
2312
2313 When defining your own scrollbar behaviour, you will always need to recalculate
2314 the scrollbar settings when the window size changes. You could therefore put your
2315 scrollbar calculations and SetScrollbar
2316 call into a function named AdjustScrollbars, which can be called initially and also
2317 from your \helpref{wxSizeEvent}{wxsizeevent} handler function.
2318
2319 \wxheading{See also}
2320
2321 \helpref{Scrolling overview}{scrollingoverview},\rtfsp
2322 \helpref{wxScrollBar}{wxscrollbar}, \helpref{wxScrolledWindow}{wxscrolledwindow}
2323
2324 \begin{comment}
2325 \membersection{wxWindow::SetScrollPage}\label{wxwindowsetscrollpage}
2326
2327 \func{virtual void}{SetScrollPage}{\param{int }{orientation}, \param{int }{pageSize}, \param{bool }{refresh = {\tt true}}}
2328
2329 Sets the page size of one of the built-in scrollbars.
2330
2331 \wxheading{Parameters}
2332
2333 \docparam{orientation}{Determines the scrollbar whose page size is to be set. May be wxHORIZONTAL or wxVERTICAL.}
2334
2335 \docparam{pageSize}{Page size in scroll units.}
2336
2337 \docparam{refresh}{{\tt true} to redraw the scrollbar, {\tt false} otherwise.}
2338
2339 \wxheading{Remarks}
2340
2341 The page size of a scrollbar is the number of scroll units that the scroll thumb travels when you
2342 click on the area above/left of or below/right of the thumb. Normally you will want a whole visible
2343 page to be scrolled, i.e. the size of the current view (perhaps the window client size). This
2344 value has to be adjusted when the window is resized, since the page size will have changed.
2345
2346 In addition to specifying how far the scroll thumb travels when paging, in Motif and some versions of Windows
2347 the thumb changes size to reflect the page size relative to the length of the document. When the
2348 document size is only slightly bigger than the current view (window) size, almost all of the scrollbar
2349 will be taken up by the thumb. When the two values become the same, the scrollbar will (on some systems)
2350 disappear.
2351
2352 Currently, this function should be called before SetPageRange, because of a quirk in the Windows
2353 handling of pages and ranges.
2354
2355 \wxheading{See also}
2356
2357 \helpref{wxWindow::SetScrollPos}{wxwindowsetscrollpos},\rtfsp
2358 \helpref{wxWindow::GetScrollPos}{wxwindowsetscrollpos},\rtfsp
2359 \helpref{wxWindow::GetScrollPage}{wxwindowsetscrollpage},\rtfsp
2360 \helpref{wxScrollBar}{wxscrollbar}, \helpref{wxScrolledWindow}{wxscrolledwindow}
2361 \end{comment}
2362
2363 \membersection{wxWindow::SetScrollPos}\label{wxwindowsetscrollpos}
2364
2365 \func{virtual void}{SetScrollPos}{\param{int }{orientation}, \param{int }{pos}, \param{bool }{refresh = {\tt true}}}
2366
2367 Sets the position of one of the built-in scrollbars.
2368
2369 \wxheading{Parameters}
2370
2371 \docparam{orientation}{Determines the scrollbar whose position is to be set. May be wxHORIZONTAL or wxVERTICAL.}
2372
2373 \docparam{pos}{Position in scroll units.}
2374
2375 \docparam{refresh}{{\tt true} to redraw the scrollbar, {\tt false} otherwise.}
2376
2377 \wxheading{Remarks}
2378
2379 This function does not directly affect the contents of the window: it is up to the
2380 application to take note of scrollbar attributes and redraw contents accordingly.
2381
2382 \wxheading{See also}
2383
2384 \helpref{wxWindow::SetScrollbar}{wxwindowsetscrollbar},\rtfsp
2385 \helpref{wxWindow::GetScrollPos}{wxwindowsetscrollpos},\rtfsp
2386 \helpref{wxWindow::GetScrollThumb}{wxwindowgetscrollthumb},\rtfsp
2387 \helpref{wxScrollBar}{wxscrollbar}, \helpref{wxScrolledWindow}{wxscrolledwindow}
2388
2389 \begin{comment}
2390 \membersection{wxWindow::SetScrollRange}\label{wxwindowsetscrollrange}
2391
2392 \func{virtual void}{SetScrollRange}{\param{int }{orientation}, \param{int }{range}, \param{bool }{refresh = {\tt true}}}
2393
2394 Sets the range of one of the built-in scrollbars.
2395
2396 \wxheading{Parameters}
2397
2398 \docparam{orientation}{Determines the scrollbar whose range is to be set. May be wxHORIZONTAL or wxVERTICAL.}
2399
2400 \docparam{range}{Scroll range.}
2401
2402 \docparam{refresh}{{\tt true} to redraw the scrollbar, {\tt false} otherwise.}
2403
2404 \wxheading{Remarks}
2405
2406 The range of a scrollbar is the number of steps that the thumb may travel, rather than the total
2407 object length of the scrollbar. If you are implementing a scrolling window, for example, you
2408 would adjust the scroll range when the window is resized, by subtracting the window view size from the
2409 total virtual window size. When the two sizes are the same (all the window is visible), the range goes to zero
2410 and usually the scrollbar will be automatically hidden.
2411
2412 \wxheading{See also}
2413
2414 \helpref{wxWindow::SetScrollPos}{wxwindowsetscrollpos},\rtfsp
2415 \helpref{wxWindow::SetScrollPage}{wxwindowsetscrollpage},\rtfsp
2416 \helpref{wxWindow::GetScrollPos}{wxwindowsetscrollpos},\rtfsp
2417 \helpref{wxWindow::GetScrollPage}{wxwindowsetscrollpage},\rtfsp
2418 \helpref{wxScrollBar}{wxscrollbar}, \helpref{wxScrolledWindow}{wxscrolledwindow}
2419 \end{comment}
2420
2421 \membersection{wxWindow::SetSize}\label{wxwindowsetsize}
2422
2423 \func{virtual void}{SetSize}{\param{int}{ x}, \param{int}{ y}, \param{int}{ width}, \param{int}{ height},
2424 \param{int}{ sizeFlags = wxSIZE\_AUTO}}
2425
2426 \func{virtual void}{SetSize}{\param{const wxRect\&}{ rect}}
2427
2428 Sets the size and position of the window in pixels.
2429
2430 \func{virtual void}{SetSize}{\param{int}{ width}, \param{int}{ height}}
2431
2432 \func{virtual void}{SetSize}{\param{const wxSize\&}{ size}}
2433
2434 Sets the size of the window in pixels.
2435
2436 \wxheading{Parameters}
2437
2438 \docparam{x}{Required x position in pixels, or -1 to indicate that the existing
2439 value should be used.}
2440
2441 \docparam{y}{Required y position in pixels, or -1 to indicate that the existing
2442 value should be used.}
2443
2444 \docparam{width}{Required width in pixels, or -1 to indicate that the existing
2445 value should be used.}
2446
2447 \docparam{height}{Required height position in pixels, or -1 to indicate that the existing
2448 value should be used.}
2449
2450 \docparam{size}{\helpref{wxSize}{wxsize} object for setting the size.}
2451
2452 \docparam{rect}{\helpref{wxRect}{wxrect} object for setting the position and size.}
2453
2454 \docparam{sizeFlags}{Indicates the interpretation of other parameters. It is a bit list of the following:
2455
2456 {\bf wxSIZE\_AUTO\_WIDTH}: a -1 width value is taken to indicate
2457 a wxWindows-supplied default width.\\
2458 {\bf wxSIZE\_AUTO\_HEIGHT}: a -1 height value is taken to indicate
2459 a wxWindows-supplied default width.\\
2460 {\bf wxSIZE\_AUTO}: -1 size values are taken to indicate
2461 a wxWindows-supplied default size.\\
2462 {\bf wxSIZE\_USE\_EXISTING}: existing dimensions should be used
2463 if -1 values are supplied.\\
2464 {\bf wxSIZE\_ALLOW\_MINUS\_ONE}: allow dimensions of -1 and less to be interpreted
2465 as real dimensions, not default values.
2466 }
2467
2468 \wxheading{Remarks}
2469
2470 The second form is a convenience for calling the first form with default
2471 x and y parameters, and must be used with non-default width and height values.
2472
2473 The first form sets the position and optionally size, of the window.
2474 Parameters may be -1 to indicate either that a default should be supplied
2475 by wxWindows, or that the current value of the dimension should be used.
2476
2477 \wxheading{See also}
2478
2479 \helpref{wxWindow::Move}{wxwindowmove}
2480
2481 \pythonnote{In place of a single overloaded method name, wxPython
2482 implements the following methods:\par
2483 \indented{2cm}{\begin{twocollist}
2484 \twocolitem{{\bf SetDimensions(x, y, width, height, sizeFlags=wxSIZE\_AUTO)}}{}
2485 \twocolitem{{\bf SetSize(size)}}{}
2486 \twocolitem{{\bf SetPosition(point)}}{}
2487 \end{twocollist}}
2488 }
2489
2490 \membersection{wxWindow::SetSizeHints}\label{wxwindowsetsizehints}
2491
2492 \func{virtual void}{SetSizeHints}{\param{int}{ minW=-1}, \param{int}{ minH=-1}, \param{int}{ maxW=-1}, \param{int}{ maxH=-1},
2493 \param{int}{ incW=-1}, \param{int}{ incH=-1}}
2494
2495 Allows specification of minimum and maximum window sizes, and window size increments.
2496 If a pair of values is not set (or set to -1), the default values will be used.
2497
2498 \wxheading{Parameters}
2499
2500 \docparam{minW}{Specifies the minimum width allowable.}
2501
2502 \docparam{minH}{Specifies the minimum height allowable.}
2503
2504 \docparam{maxW}{Specifies the maximum width allowable.}
2505
2506 \docparam{maxH}{Specifies the maximum height allowable.}
2507
2508 \docparam{incW}{Specifies the increment for sizing the width (Motif/Xt only).}
2509
2510 \docparam{incH}{Specifies the increment for sizing the height (Motif/Xt only).}
2511
2512 \wxheading{Remarks}
2513
2514 If this function is called, the user will not be able to size the window outside the
2515 given bounds.
2516
2517 The resizing increments are only significant under Motif or Xt.
2518
2519 \membersection{wxWindow::SetSizer}\label{wxwindowsetsizer}
2520
2521 \func{void}{SetSizer}{\param{wxSizer* }{sizer}, \param{bool }{deleteOld=true}}
2522
2523 Sets the window to have the given layout sizer. The window
2524 will then own the object, and will take care of its deletion.
2525 If an existing layout constraints object is already owned by the
2526 window, it will be deleted if the deleteOld parameter is true.
2527
2528 Note that this function will also call
2529 \helpref{SetAutoLayout}{wxwindowsetautolayout} implicitly with {\tt true}
2530 parameter if the {\it sizer}\/ is non-NULL and {\tt false} otherwise.
2531
2532 \wxheading{Parameters}
2533
2534 \docparam{sizer}{The sizer to set. Pass NULL to disassociate and conditionally delete
2535 the window's sizer. See below.}
2536
2537 \docparam{deleteOld}{If true (the default), this will delete any prexisting sizer.
2538 Pass false if you wish to handle deleting the old sizer yourself.}
2539
2540 \wxheading{Remarks}
2541
2542 SetSizer now enables and disables Layout automatically, but prior to wxWindows 2.3.3
2543 the following applied:
2544
2545 You must call \helpref{wxWindow::SetAutoLayout}{wxwindowsetautolayout} to tell a window to use
2546 the sizer automatically in OnSize; otherwise, you must override OnSize and call Layout()
2547 explicitly. When setting both a wxSizer and a \helpref{wxLayoutConstraints}{wxlayoutconstraints},
2548 only the sizer will have effect.
2549
2550 \membersection{wxWindow::SetSizerAndFit}\label{wxwindowsetsizerandfit}
2551
2552 \func{void}{SetSizerAndFit}{\param{wxSizer* }{sizer}, \param{bool }{deleteOld=true}}
2553
2554 The same as \helpref{SetSizer}{wxwindowsetsizer}, except it also sets the size hints
2555 for the window based on the sizer's minimum size.
2556
2557 \membersection{wxWindow::SetTitle}\label{wxwindowsettitle}
2558
2559 \func{virtual void}{SetTitle}{\param{const wxString\& }{title}}
2560
2561 Sets the window's title. Applicable only to frames and dialogs.
2562
2563 \wxheading{Parameters}
2564
2565 \docparam{title}{The window's title.}
2566
2567 \wxheading{See also}
2568
2569 \helpref{wxWindow::GetTitle}{wxwindowgettitle}
2570
2571 \membersection{wxWindow::SetThemeEnabled}\label{wxwindowsetthemeenabled}
2572
2573 \func{virtual void}{SetThemeEnabled}{\param{bool }{enable}}
2574
2575 This function tells a window if it should use the system's "theme" code
2576 to draw the windows' background instead if its own background drawing
2577 code. This does not always have any effect since the underlying platform
2578 obviously needs to support the notion of themes in user defined windows.
2579 One such platform is GTK+ where windows can have (very colourful) backgrounds
2580 defined by a user's selected theme.
2581
2582 Dialogs, notebook pages and the status bar have this flag set to true
2583 by default so that the default look and feel is simulated best.
2584
2585 \membersection{wxWindow::SetValidator}\label{wxwindowsetvalidator}
2586
2587 \func{virtual void}{SetValidator}{\param{const wxValidator\&}{ validator}}
2588
2589 Deletes the current validator (if any) and sets the window validator, having called wxValidator::Clone to
2590 create a new validator of this type.
2591
2592 \membersection{wxWindow::SetToolTip}\label{wxwindowsettooltip}
2593
2594 \func{void}{SetToolTip}{\param{const wxString\& }{tip}}
2595
2596 \func{void}{SetToolTip}{\param{wxToolTip* }{tip}}
2597
2598 Attach a tooltip to the window.
2599
2600 See also: \helpref{GetToolTip}{wxwindowgettooltip},
2601 \helpref{wxToolTip}{wxtooltip}
2602
2603 \membersection{wxWindow::SetVirtualSize}\label{wxwindowsetvirtualsize}
2604
2605 \func{void}{SetVirtualSize}{\param{int}{ width}, \param{int}{ height}}
2606
2607 \func{void}{SetVirtualSize}{\param{const wxSize\&}{ size}}
2608
2609 Sets the virtual size of the window in pixels.
2610
2611 \membersection{wxWindow::SetVirtualSizeHints}\label{wxwindowsetvirtualsizehints}
2612
2613 \func{virtual void}{SetVirtualSizeHints}{\param{int}{ minW},\param{int}{ minH}, \param{int}{ maxW=-1}, \param{int}{ maxH=-1}}
2614
2615 Allows specification of minimum and maximum virtual window sizes.
2616 If a pair of values is not set (or set to -1), the default values
2617 will be used.
2618
2619 \wxheading{Parameters}
2620
2621 \docparam{minW}{Specifies the minimum width allowable.}
2622
2623 \docparam{minH}{Specifies the minimum height allowable.}
2624
2625 \docparam{maxW}{Specifies the maximum width allowable.}
2626
2627 \docparam{maxH}{Specifies the maximum height allowable.}
2628
2629 \wxheading{Remarks}
2630
2631 If this function is called, the user will not be able to size the virtual area
2632 of the window outside the given bounds.
2633
2634 \membersection{wxWindow::SetWindowStyle}\label{wxwindowsetwindowstyle}
2635
2636 \func{void}{SetWindowStyle}{\param{long}{ style}}
2637
2638 Identical to \helpref{SetWindowStyleFlag}{wxwindowsetwindowstyleflag}.
2639
2640 \membersection{wxWindow::SetWindowStyleFlag}\label{wxwindowsetwindowstyleflag}
2641
2642 \func{virtual void}{SetWindowStyleFlag}{\param{long}{ style}}
2643
2644 Sets the style of the window. Please note that some styles cannot be changed
2645 after the window creation and that \helpref{Refresh()}{wxwindowrefresh} might
2646 be called after changing the others for the change to take place immediately.
2647
2648 See \helpref{Window styles}{windowstyles} for more information about flags.
2649
2650 \wxheading{See also}
2651
2652 \helpref{GetWindowStyleFlag}{wxwindowgetwindowstyleflag}
2653
2654 \membersection{wxWindow::Show}\label{wxwindowshow}
2655
2656 \func{virtual bool}{Show}{\param{bool}{ show = {\tt true}}}
2657
2658 Shows or hides the window. You may need to call \helpref{Raise}{wxwindowraise}
2659 for a top level window if you want to bring it to top, although this is not
2660 needed if Show() is called immediately after the frame creation.
2661
2662 \wxheading{Parameters}
2663
2664 \docparam{show}{If {\tt true} displays the window. Otherwise, hides it.}
2665
2666 \wxheading{Return value}
2667
2668 {\tt true} if the window has been shown or hidden or {\tt false} if nothing was
2669 done because it already was in the requested state.
2670
2671 \wxheading{See also}
2672
2673 \helpref{wxWindow::IsShown}{wxwindowisshown}
2674
2675 \membersection{wxWindow::Thaw}\label{wxwindowthaw}
2676
2677 \func{virtual void}{Thaw}{\void}
2678
2679 Reenables window updating after a previous call to
2680 \helpref{Freeze}{wxwindowfreeze}.
2681
2682 \membersection{wxWindow::TransferDataFromWindow}\label{wxwindowtransferdatafromwindow}
2683
2684 \func{virtual bool}{TransferDataFromWindow}{\void}
2685
2686 Transfers values from child controls to data areas specified by their validators. Returns
2687 {\tt false} if a transfer failed.
2688
2689 If the window has {\tt wxWS\_EX\_VALIDATE\_RECURSIVELY} extra style flag set,
2690 the method will also call TransferDataFromWindow() of all child windows.
2691
2692 \wxheading{See also}
2693
2694 \helpref{wxWindow::TransferDataToWindow}{wxwindowtransferdatatowindow},\rtfsp
2695 \helpref{wxValidator}{wxvalidator}, \helpref{wxWindow::Validate}{wxwindowvalidate}
2696
2697 \membersection{wxWindow::TransferDataToWindow}\label{wxwindowtransferdatatowindow}
2698
2699 \func{virtual bool}{TransferDataToWindow}{\void}
2700
2701 Transfers values to child controls from data areas specified by their validators.
2702
2703 If the window has {\tt wxWS\_EX\_VALIDATE\_RECURSIVELY} extra style flag set,
2704 the method will also call TransferDataToWindow() of all child windows.
2705
2706 \wxheading{Return value}
2707
2708 Returns {\tt false} if a transfer failed.
2709
2710 \wxheading{See also}
2711
2712 \helpref{wxWindow::TransferDataFromWindow}{wxwindowtransferdatafromwindow},\rtfsp
2713 \helpref{wxValidator}{wxvalidator}, \helpref{wxWindow::Validate}{wxwindowvalidate}
2714
2715 \membersection{wxWindow::Update}\label{wxwindowupdate}
2716
2717 \func{virtual void}{Update}{\void}
2718
2719 Calling this method immediately repaints the invalidated area of the window
2720 while this would usually only happen when the flow of control returns to the
2721 event loop. Notice that this function doesn't refresh the window and does
2722 nothing if the window hadn't been already repainted. Use
2723 \helpref{Refresh}{wxwindowrefresh} first if you want to immediately redraw the
2724 window unconditionally.
2725
2726 \membersection{wxWindow::Validate}\label{wxwindowvalidate}
2727
2728 \func{virtual bool}{Validate}{\void}
2729
2730 Validates the current values of the child controls using their validators.
2731
2732 If the window has {\tt wxWS\_EX\_VALIDATE\_RECURSIVELY} extra style flag set,
2733 the method will also call Validate() of all child windows.
2734
2735 \wxheading{Return value}
2736
2737 Returns {\tt false} if any of the validations failed.
2738
2739 \wxheading{See also}
2740
2741 \helpref{wxWindow::TransferDataFromWindow}{wxwindowtransferdatafromwindow},\rtfsp
2742 \helpref{wxWindow::TransferDataFromWindow}{wxwindowtransferdatafromwindow},\rtfsp
2743 \helpref{wxValidator}{wxvalidator}
2744
2745 \membersection{wxWindow::WarpPointer}\label{wxwindowwarppointer}
2746
2747 \func{void}{WarpPointer}{\param{int}{ x}, \param{int}{ y}}
2748
2749 Moves the pointer to the given position on the window.
2750
2751 {\bf NB: } This function is not supported under Mac because Apple Human
2752 Interface Guidelines forbid moving the mouse cursor programmatically.
2753
2754 \wxheading{Parameters}
2755
2756 \docparam{x}{The new x position for the cursor.}
2757
2758 \docparam{y}{The new y position for the cursor.}
2759