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Refactor initialization code in wxTopLevelWindowMSW::Create().
[wxWidgets.git] / src / msw / toplevel.cpp
1 ///////////////////////////////////////////////////////////////////////////////
2 // Name: src/msw/toplevel.cpp
3 // Purpose: implements wxTopLevelWindow for MSW
4 // Author: Vadim Zeitlin
5 // Modified by:
6 // Created: 24.09.01
7 // RCS-ID: $Id$
8 // Copyright: (c) 2001 SciTech Software, Inc. (www.scitechsoft.com)
9 // License: wxWindows licence
10 ///////////////////////////////////////////////////////////////////////////////
11
12 // ============================================================================
13 // declarations
14 // ============================================================================
15
16 // ----------------------------------------------------------------------------
17 // headers
18 // ----------------------------------------------------------------------------
19
20 // For compilers that support precompilation, includes "wx.h".
21 #include "wx/wxprec.h"
22
23 #ifdef __BORLANDC__
24 #pragma hdrstop
25 #endif
26
27 #include "wx/toplevel.h"
28
29 #ifndef WX_PRECOMP
30 #include "wx/app.h"
31 #include "wx/dialog.h"
32 #include "wx/string.h"
33 #include "wx/log.h"
34 #include "wx/intl.h"
35 #include "wx/frame.h"
36 #include "wx/containr.h" // wxSetFocusToChild()
37 #include "wx/module.h"
38 #endif //WX_PRECOMP
39
40 #include "wx/dynlib.h"
41
42 #include "wx/msw/private.h"
43 #if defined(__WXWINCE__) && !defined(__HANDHELDPC__)
44 #include <ole2.h>
45 #include <shellapi.h>
46 // Standard SDK doesn't have aygshell.dll: see include/wx/msw/wince/libraries.h
47 #if _WIN32_WCE < 400 || !defined(__WINCE_STANDARDSDK__)
48 #include <aygshell.h>
49 #endif
50 #endif
51
52 #include "wx/msw/winundef.h"
53 #include "wx/msw/missing.h"
54
55 #include "wx/display.h"
56
57 #ifndef ICON_BIG
58 #define ICON_BIG 1
59 #endif
60
61 #ifndef ICON_SMALL
62 #define ICON_SMALL 0
63 #endif
64
65 // ----------------------------------------------------------------------------
66 // stubs for missing functions under MicroWindows
67 // ----------------------------------------------------------------------------
68
69 #ifdef __WXMICROWIN__
70
71 // static inline bool IsIconic(HWND WXUNUSED(hwnd)) { return false; }
72 static inline bool IsZoomed(HWND WXUNUSED(hwnd)) { return false; }
73
74 #endif // __WXMICROWIN__
75
76 // NB: wxDlgProc must be defined here and not in dialog.cpp because the latter
77 // is not included by wxUniv build which does need wxDlgProc
78 LONG APIENTRY _EXPORT
79 wxDlgProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam);
80
81 // ----------------------------------------------------------------------------
82 // wxTLWHiddenParentModule: used to manage the hidden parent window (we need a
83 // module to ensure that the window is always deleted)
84 // ----------------------------------------------------------------------------
85
86 class wxTLWHiddenParentModule : public wxModule
87 {
88 public:
89 // module init/finalize
90 virtual bool OnInit();
91 virtual void OnExit();
92
93 // get the hidden window (creates on demand)
94 static HWND GetHWND();
95
96 private:
97 // the HWND of the hidden parent
98 static HWND ms_hwnd;
99
100 // the class used to create it
101 static const wxChar *ms_className;
102
103 DECLARE_DYNAMIC_CLASS(wxTLWHiddenParentModule)
104 };
105
106 IMPLEMENT_DYNAMIC_CLASS(wxTLWHiddenParentModule, wxModule)
107
108 // ============================================================================
109 // wxTopLevelWindowMSW implementation
110 // ============================================================================
111
112 BEGIN_EVENT_TABLE(wxTopLevelWindowMSW, wxTopLevelWindowBase)
113 EVT_ACTIVATE(wxTopLevelWindowMSW::OnActivate)
114 END_EVENT_TABLE()
115
116 // ----------------------------------------------------------------------------
117 // wxTopLevelWindowMSW creation
118 // ----------------------------------------------------------------------------
119
120 void wxTopLevelWindowMSW::Init()
121 {
122 m_iconized =
123 m_maximizeOnShow = false;
124
125 // Data to save/restore when calling ShowFullScreen
126 m_fsStyle = 0;
127 m_fsOldWindowStyle = 0;
128 m_fsIsMaximized = false;
129 m_fsIsShowing = false;
130
131 m_winLastFocused = NULL;
132
133 #if defined(__SMARTPHONE__) && defined(__WXWINCE__)
134 m_MenuBarHWND = 0;
135 #endif
136
137 #if defined(__SMARTPHONE__) || defined(__POCKETPC__)
138 SHACTIVATEINFO* info = new SHACTIVATEINFO;
139 wxZeroMemory(*info);
140 info->cbSize = sizeof(SHACTIVATEINFO);
141
142 m_activateInfo = (void*) info;
143 #endif
144 }
145
146 WXDWORD wxTopLevelWindowMSW::MSWGetStyle(long style, WXDWORD *exflags) const
147 {
148 // let the base class deal with the common styles but fix the ones which
149 // don't make sense for us (we also deal with the borders ourselves)
150 WXDWORD msflags = wxWindow::MSWGetStyle
151 (
152 (style & ~wxBORDER_MASK) | wxBORDER_NONE, exflags
153 ) & ~WS_CHILD & ~WS_VISIBLE;
154
155 // For some reason, WS_VISIBLE needs to be defined on creation for
156 // SmartPhone 2003. The title can fail to be displayed otherwise.
157 #if defined(__SMARTPHONE__) || (defined(__WXWINCE__) && _WIN32_WCE < 400)
158 msflags |= WS_VISIBLE;
159 ((wxTopLevelWindowMSW*)this)->wxWindowBase::Show(true);
160 #endif
161
162 // first select the kind of window being created
163 //
164 // note that if we don't set WS_POPUP, Windows assumes WS_OVERLAPPED and
165 // creates a window with both caption and border, hence we need to use
166 // WS_POPUP in a few cases just to avoid having caption/border which we
167 // don't want
168
169 // border and caption styles
170 if ( ( style & wxRESIZE_BORDER ) && !IsAlwaysMaximized())
171 msflags |= WS_THICKFRAME;
172 else if ( exflags && ((style & wxBORDER_DOUBLE) || (style & wxBORDER_RAISED)) )
173 *exflags |= WS_EX_DLGMODALFRAME;
174 else if ( !(style & wxBORDER_NONE) )
175 msflags |= WS_BORDER;
176 #ifndef __POCKETPC__
177 else
178 msflags |= WS_POPUP;
179 #endif
180
181 // normally we consider that all windows without a caption must be popups,
182 // but CE is an exception: there windows normally do not have the caption
183 // but shouldn't be made popups as popups can't have menus and don't look
184 // like normal windows anyhow
185
186 // TODO: Smartphone appears to like wxCAPTION, but we should check that
187 // we need it.
188 #if defined(__SMARTPHONE__) || !defined(__WXWINCE__)
189 if ( style & wxCAPTION )
190 msflags |= WS_CAPTION;
191 #ifndef __WXWINCE__
192 else
193 msflags |= WS_POPUP;
194 #endif // !__WXWINCE__
195 #endif
196
197 // next translate the individual flags
198
199 // WS_EX_CONTEXTHELP is incompatible with WS_MINIMIZEBOX and WS_MAXIMIZEBOX
200 // and is ignored if we specify both of them, but chances are that if we
201 // use wxWS_EX_CONTEXTHELP, we really do want to have the context help
202 // button while wxMINIMIZE/wxMAXIMIZE are included by default, so the help
203 // takes precedence
204 if ( !(GetExtraStyle() & wxWS_EX_CONTEXTHELP) )
205 {
206 if ( style & wxMINIMIZE_BOX )
207 msflags |= WS_MINIMIZEBOX;
208 if ( style & wxMAXIMIZE_BOX )
209 msflags |= WS_MAXIMIZEBOX;
210 }
211
212 #ifndef __WXWINCE__
213 // notice that if wxCLOSE_BOX is specified we need to use WS_SYSMENU too as
214 // otherwise the close box doesn't appear
215 if ( style & (wxSYSTEM_MENU | wxCLOSE_BOX) )
216 msflags |= WS_SYSMENU;
217 #endif // !__WXWINCE__
218
219 // NB: under CE these 2 styles are not supported currently, we should
220 // call Minimize()/Maximize() "manually" if we want to support them
221 if ( style & wxMINIMIZE )
222 msflags |= WS_MINIMIZE;
223
224 if ( style & wxMAXIMIZE )
225 msflags |= WS_MAXIMIZE;
226
227 // Keep this here because it saves recoding this function in wxTinyFrame
228 if ( style & (wxTINY_CAPTION_VERT | wxTINY_CAPTION_HORIZ) )
229 msflags |= WS_CAPTION;
230
231 if ( exflags )
232 {
233 // there is no taskbar under CE, so omit all this
234 #if !defined(__WXWINCE__)
235 if ( !(GetExtraStyle() & wxTOPLEVEL_EX_DIALOG) )
236 {
237 if ( style & wxFRAME_TOOL_WINDOW )
238 {
239 // create the palette-like window
240 *exflags |= WS_EX_TOOLWINDOW;
241
242 // tool windows shouldn't appear on the taskbar (as documented)
243 style |= wxFRAME_NO_TASKBAR;
244 }
245
246 // We have to solve 2 different problems here:
247 //
248 // 1. frames with wxFRAME_NO_TASKBAR flag shouldn't appear in the
249 // taskbar even if they don't have a parent
250 //
251 // 2. frames without this style should appear in the taskbar even
252 // if they're owned (Windows only puts non owned windows into
253 // the taskbar normally)
254 //
255 // The second one is solved here by using WS_EX_APPWINDOW flag, the
256 // first one is dealt with in our MSWGetParent() method
257 // implementation
258 if ( !(style & wxFRAME_NO_TASKBAR) && GetParent() )
259 {
260 // need to force the frame to appear in the taskbar
261 *exflags |= WS_EX_APPWINDOW;
262 }
263 //else: nothing to do [here]
264 }
265
266 if ( GetExtraStyle() & wxWS_EX_CONTEXTHELP )
267 *exflags |= WS_EX_CONTEXTHELP;
268 #endif // !__WXWINCE__
269
270 if ( style & wxSTAY_ON_TOP )
271 *exflags |= WS_EX_TOPMOST;
272 }
273
274 return msflags;
275 }
276
277 WXHWND wxTopLevelWindowMSW::MSWGetParent() const
278 {
279 // for the frames without wxFRAME_FLOAT_ON_PARENT style we should use NULL
280 // parent HWND or it would be always on top of its parent which is not what
281 // we usually want (in fact, we only want it for frames with the
282 // wxFRAME_FLOAT_ON_PARENT flag)
283 HWND hwndParent = NULL;
284 if ( HasFlag(wxFRAME_FLOAT_ON_PARENT) )
285 {
286 const wxWindow *parent = GetParent();
287
288 if ( !parent )
289 {
290 // this flag doesn't make sense then and will be ignored
291 wxFAIL_MSG( wxT("wxFRAME_FLOAT_ON_PARENT but no parent?") );
292 }
293 else
294 {
295 hwndParent = GetHwndOf(parent);
296 }
297 }
298 //else: don't float on parent, must not be owned
299
300 // now deal with the 2nd taskbar-related problem (see comments above in
301 // MSWGetStyle())
302 if ( HasFlag(wxFRAME_NO_TASKBAR) && !hwndParent )
303 {
304 // use hidden parent
305 hwndParent = wxTLWHiddenParentModule::GetHWND();
306 }
307
308 return (WXHWND)hwndParent;
309 }
310
311 #if defined(__SMARTPHONE__) || defined(__POCKETPC__)
312 bool wxTopLevelWindowMSW::HandleSettingChange(WXWPARAM wParam, WXLPARAM lParam)
313 {
314 SHACTIVATEINFO *info = (SHACTIVATEINFO*) m_activateInfo;
315 if ( info )
316 {
317 SHHandleWMSettingChange(GetHwnd(), wParam, lParam, info);
318 }
319
320 return wxWindowMSW::HandleSettingChange(wParam, lParam);
321 }
322 #endif
323
324 WXLRESULT wxTopLevelWindowMSW::MSWWindowProc(WXUINT message, WXWPARAM wParam, WXLPARAM lParam)
325 {
326 WXLRESULT rc = 0;
327 bool processed = false;
328
329 #if defined(__SMARTPHONE__) || defined(__POCKETPC__)
330 switch ( message )
331 {
332 case WM_ACTIVATE:
333 {
334 SHACTIVATEINFO* info = (SHACTIVATEINFO*) m_activateInfo;
335 if (info)
336 {
337 DWORD flags = 0;
338 if (GetExtraStyle() & wxTOPLEVEL_EX_DIALOG) flags = SHA_INPUTDIALOG;
339 SHHandleWMActivate(GetHwnd(), wParam, lParam, info, flags);
340 }
341
342 // This implicitly sends a wxEVT_ACTIVATE_APP event
343 if (wxTheApp)
344 wxTheApp->SetActive(wParam != 0, FindFocus());
345
346 break;
347 }
348 case WM_HIBERNATE:
349 {
350 if (wxTheApp)
351 {
352 wxActivateEvent event(wxEVT_HIBERNATE, true, wxID_ANY);
353 event.SetEventObject(wxTheApp);
354 processed = wxTheApp->ProcessEvent(event);
355 }
356 break;
357 }
358 }
359 #endif
360
361 if ( !processed )
362 rc = wxTopLevelWindowBase::MSWWindowProc(message, wParam, lParam);
363
364 return rc;
365 }
366
367 bool wxTopLevelWindowMSW::CreateDialog(const void *dlgTemplate,
368 const wxString& title,
369 const wxPoint& pos,
370 const wxSize& size)
371 {
372 #ifdef __WXMICROWIN__
373 // no dialogs support under MicroWin yet
374 return CreateFrame(title, pos, size);
375 #else // !__WXMICROWIN__
376 // static cast is valid as we're only ever called for dialogs
377 wxWindow * const
378 parent = static_cast<wxDialog *>(this)->
379 GetParentForModalDialog(GetParent());
380
381 m_hWnd = (WXHWND)::CreateDialogIndirect
382 (
383 wxGetInstance(),
384 (DLGTEMPLATE*)dlgTemplate,
385 parent ? GetHwndOf(parent) : NULL,
386 (DLGPROC)wxDlgProc
387 );
388
389 if ( !m_hWnd )
390 {
391 wxFAIL_MSG(wxT("Failed to create dialog. Incorrect DLGTEMPLATE?"));
392
393 wxLogSysError(wxT("Can't create dialog using memory template"));
394
395 return false;
396 }
397
398 #if !defined(__WXWINCE__)
399 // For some reason, the system menu is activated when we use the
400 // WS_EX_CONTEXTHELP style, so let's set a reasonable icon
401 if ( HasExtraStyle(wxWS_EX_CONTEXTHELP) )
402 {
403 wxFrame *winTop = wxDynamicCast(wxTheApp->GetTopWindow(), wxFrame);
404 if ( winTop )
405 {
406 wxIcon icon = winTop->GetIcon();
407 if ( icon.Ok() )
408 {
409 ::SendMessage(GetHwnd(), WM_SETICON,
410 (WPARAM)TRUE,
411 (LPARAM)GetHiconOf(icon));
412 }
413 }
414 }
415 #endif // !__WXWINCE__
416
417 // move the dialog to its initial position without forcing repainting
418 int x, y, w, h;
419 (void)MSWGetCreateWindowCoords(pos, size, x, y, w, h);
420
421 if ( x == (int)CW_USEDEFAULT )
422 {
423 // centre it on the screen - what else can we do?
424 wxSize sizeDpy = wxGetDisplaySize();
425
426 x = (sizeDpy.x - w) / 2;
427 y = (sizeDpy.y - h) / 2;
428 }
429
430 #if !defined(__WXWINCE__) || defined(__WINCE_STANDARDSDK__)
431 if ( !::MoveWindow(GetHwnd(), x, y, w, h, FALSE) )
432 {
433 wxLogLastError(wxT("MoveWindow"));
434 }
435 #endif
436
437 if ( !title.empty() )
438 {
439 ::SetWindowText(GetHwnd(), title.wx_str());
440 }
441
442 SubclassWin(m_hWnd);
443
444 #ifdef __SMARTPHONE__
445 // Work around title non-display glitch
446 Show(false);
447 #endif
448
449 return true;
450 #endif // __WXMICROWIN__/!__WXMICROWIN__
451 }
452
453 bool wxTopLevelWindowMSW::CreateFrame(const wxString& title,
454 const wxPoint& pos,
455 const wxSize& size)
456 {
457 WXDWORD exflags;
458 WXDWORD flags = MSWGetCreateWindowFlags(&exflags);
459
460 const wxSize sz = IsAlwaysMaximized() ? wxDefaultSize : size;
461
462 #ifndef __WXWINCE__
463 if ( wxTheApp->GetLayoutDirection() == wxLayout_RightToLeft )
464 exflags |= WS_EX_LAYOUTRTL;
465 #endif
466
467 return MSWCreate(MSWGetRegisteredClassName(),
468 title.wx_str(), pos, sz, flags, exflags);
469 }
470
471 bool wxTopLevelWindowMSW::Create(wxWindow *parent,
472 wxWindowID id,
473 const wxString& title,
474 const wxPoint& pos,
475 const wxSize& size,
476 long style,
477 const wxString& name)
478 {
479 wxSize sizeReal = size;
480 if ( !sizeReal.IsFullySpecified() )
481 {
482 sizeReal.SetDefaults(GetDefaultSize());
483 }
484
485 bool ret = CreateBase(parent, id, pos, sizeReal, style, name);
486 if ( !ret )
487 return false;
488
489 wxTopLevelWindows.Append(this);
490
491 if ( parent )
492 parent->AddChild(this);
493
494 if ( GetExtraStyle() & wxTOPLEVEL_EX_DIALOG )
495 {
496 // we have different dialog templates to allows creation of dialogs
497 // with & without captions under MSWindows, resizeable or not (but a
498 // resizeable dialog always has caption - otherwise it would look too
499 // strange)
500
501 // we need 3 additional WORDs for dialog menu, class and title (as we
502 // don't use DS_SETFONT we don't need the fourth WORD for the font)
503 static const int dlgsize = sizeof(DLGTEMPLATE) + (sizeof(WORD) * 3);
504 DLGTEMPLATE *dlgTemplate = (DLGTEMPLATE *)malloc(dlgsize);
505 memset(dlgTemplate, 0, dlgsize);
506
507 // these values are arbitrary, they won't be used normally anyhow
508 dlgTemplate->x = 34;
509 dlgTemplate->y = 22;
510 dlgTemplate->cx = 144;
511 dlgTemplate->cy = 75;
512
513 // reuse the code in MSWGetStyle() but correct the results slightly for
514 // the dialog
515 //
516 // NB: we need a temporary variable as we can't pass pointer to
517 // dwExtendedStyle directly, it's not aligned correctly for 64 bit
518 // architectures
519 WXDWORD dwExtendedStyle;
520 dlgTemplate->style = MSWGetStyle(style, &dwExtendedStyle);
521 dlgTemplate->dwExtendedStyle = dwExtendedStyle;
522
523 // all dialogs are popups
524 dlgTemplate->style |= WS_POPUP;
525
526 #ifndef __WXWINCE__
527 if ( wxTheApp->GetLayoutDirection() == wxLayout_RightToLeft )
528 {
529 dlgTemplate->dwExtendedStyle |= WS_EX_LAYOUTRTL;
530 }
531
532 // force 3D-look if necessary, it looks impossibly ugly otherwise
533 if ( style & (wxRESIZE_BORDER | wxCAPTION) )
534 dlgTemplate->style |= DS_MODALFRAME;
535 #endif
536
537 ret = CreateDialog(dlgTemplate, title, pos, sizeReal);
538 free(dlgTemplate);
539 }
540 else // !dialog
541 {
542 ret = CreateFrame(title, pos, sizeReal);
543 }
544
545 #ifndef __WXWINCE__
546 if ( ret && !(GetWindowStyleFlag() & wxCLOSE_BOX) )
547 {
548 EnableCloseButton(false);
549 }
550 #endif
551
552 // for standard dialogs the dialog manager generates WM_CHANGEUISTATE
553 // itself but for custom windows we have to do it ourselves in order to
554 // make the keyboard indicators (such as underlines for accelerators and
555 // focus rectangles) work under Win2k+
556 if ( ret )
557 {
558 MSWUpdateUIState(UIS_INITIALIZE);
559 }
560
561 // Note: if we include PocketPC in this test, dialogs can fail to show up,
562 // for example the text entry dialog in the dialogs sample. Problem with Maximise()?
563 #if defined(__WXWINCE__) && (defined(__SMARTPHONE__) || defined(__WINCE_STANDARDSDK__))
564 if ( ( style & wxMAXIMIZE ) || IsAlwaysMaximized() )
565 {
566 this->Maximize();
567 }
568 #endif
569
570 #if defined(__SMARTPHONE__) && defined(__WXWINCE__)
571 SetRightMenu(); // to nothing for initialization
572 #endif
573
574 return ret;
575 }
576
577 wxTopLevelWindowMSW::~wxTopLevelWindowMSW()
578 {
579 SendDestroyEvent();
580
581 #if defined(__SMARTPHONE__) || defined(__POCKETPC__)
582 SHACTIVATEINFO* info = (SHACTIVATEINFO*) m_activateInfo;
583 delete info;
584 m_activateInfo = NULL;
585 #endif
586
587 // after destroying an owned window, Windows activates the next top level
588 // window in Z order but it may be different from our owner (to reproduce
589 // this simply Alt-TAB to another application and back before closing the
590 // owned frame) whereas we always want to yield activation to our parent
591 if ( HasFlag(wxFRAME_FLOAT_ON_PARENT) )
592 {
593 wxWindow *parent = GetParent();
594 if ( parent )
595 {
596 ::BringWindowToTop(GetHwndOf(parent));
597 }
598 }
599 }
600
601 // ----------------------------------------------------------------------------
602 // wxTopLevelWindowMSW showing
603 // ----------------------------------------------------------------------------
604
605 void wxTopLevelWindowMSW::DoShowWindow(int nShowCmd)
606 {
607 ::ShowWindow(GetHwnd(), nShowCmd);
608
609 m_iconized = nShowCmd == SW_MINIMIZE;
610 }
611
612 bool wxTopLevelWindowMSW::Show(bool show)
613 {
614 // don't use wxWindow version as we want to call DoShowWindow() ourselves
615 if ( !wxWindowBase::Show(show) )
616 return false;
617
618 int nShowCmd;
619 if ( show )
620 {
621 if ( m_maximizeOnShow )
622 {
623 // show and maximize
624 nShowCmd = SW_MAXIMIZE;
625
626 // This is necessary, or no window appears
627 #if defined( __WINCE_STANDARDSDK__) || defined(__SMARTPHONE__)
628 DoShowWindow(SW_SHOW);
629 #endif
630
631 m_maximizeOnShow = false;
632 }
633 else if ( m_iconized )
634 {
635 // iconize and show
636 nShowCmd = SW_MINIMIZE;
637 }
638 else // just show
639 {
640 // we shouldn't use SW_SHOW which also activates the window for
641 // tool frames (as they shouldn't steal focus from the main window)
642 // nor for the currently disabled windows as they would be enabled
643 // as a side effect
644 if ( HasFlag(wxFRAME_TOOL_WINDOW) || !IsEnabled() )
645 nShowCmd = SW_SHOWNA;
646 else
647 nShowCmd = SW_SHOW;
648 }
649 }
650 else // hide
651 {
652 nShowCmd = SW_HIDE;
653 }
654
655 DoShowWindow(nShowCmd);
656
657 #if defined(__WXWINCE__) && (_WIN32_WCE >= 400 && !defined(__POCKETPC__) && !defined(__SMARTPHONE__))
658 // Addornments have to be added when the frame is the correct size
659 wxFrame* frame = wxDynamicCast(this, wxFrame);
660 if (frame && frame->GetMenuBar())
661 frame->GetMenuBar()->AddAdornments(GetWindowStyleFlag());
662 #endif
663
664 // we only set pending size if we're maximized before being shown, now that
665 // we're shown we don't need it any more (it is reset in size event handler
666 // for child windows but we have to do it ourselves for this parent window)
667 m_pendingSize = wxDefaultSize;
668
669 return true;
670 }
671
672 // ----------------------------------------------------------------------------
673 // wxTopLevelWindowMSW maximize/minimize
674 // ----------------------------------------------------------------------------
675
676 void wxTopLevelWindowMSW::Maximize(bool maximize)
677 {
678 if ( IsShown() )
679 {
680 // just maximize it directly
681 DoShowWindow(maximize ? SW_MAXIMIZE : SW_RESTORE);
682 }
683 else // hidden
684 {
685 // we can't maximize the hidden frame because it shows it as well,
686 // so just remember that we should do it later in this case
687 m_maximizeOnShow = maximize;
688
689 // after calling Maximize() the client code expects to get the frame
690 // "real" size and doesn't want to know that, because of implementation
691 // details, the frame isn't really maximized yet but will be only once
692 // it's shown, so return our size as it will be then in this case
693 if ( maximize )
694 {
695 // we must only change pending size here, and not call SetSize()
696 // because otherwise Windows would think that this (full screen)
697 // size is the natural size for the frame and so would use it when
698 // the user clicks on "restore" title bar button instead of the
699 // correct initial frame size
700 //
701 // NB: unfortunately we don't know which display we're on yet so we
702 // have to use the default one
703 m_pendingSize = wxGetClientDisplayRect().GetSize();
704 }
705 //else: can't do anything in this case, we don't have the old size
706 }
707 }
708
709 bool wxTopLevelWindowMSW::IsMaximized() const
710 {
711 return IsAlwaysMaximized() ||
712 #if !defined(__SMARTPHONE__) && !defined(__POCKETPC__) && !defined(__WINCE_STANDARDSDK__)
713
714 (::IsZoomed(GetHwnd()) != 0) ||
715 #endif
716 m_maximizeOnShow;
717 }
718
719 void wxTopLevelWindowMSW::Iconize(bool iconize)
720 {
721 if ( IsShown() )
722 {
723 // change the window state immediately
724 DoShowWindow(iconize ? SW_MINIMIZE : SW_RESTORE);
725 }
726 else // hidden
727 {
728 // iconizing the window shouldn't show it so just remember that we need
729 // to become iconized when shown later
730 m_iconized = true;
731 }
732 }
733
734 bool wxTopLevelWindowMSW::IsIconized() const
735 {
736 #ifdef __WXWINCE__
737 return false;
738 #else
739 if ( !IsShown() )
740 return m_iconized;
741
742 // don't use m_iconized, it may be briefly out of sync with the real state
743 // as it's only modified when we receive a WM_SIZE and we could be called
744 // from an event handler from one of the messages we receive before it,
745 // such as WM_MOVE
746 return ::IsIconic(GetHwnd()) != 0;
747 #endif
748 }
749
750 void wxTopLevelWindowMSW::Restore()
751 {
752 DoShowWindow(SW_RESTORE);
753 }
754
755 void wxTopLevelWindowMSW::SetLayoutDirection(wxLayoutDirection dir)
756 {
757 if ( dir == wxLayout_Default )
758 dir = wxTheApp->GetLayoutDirection();
759
760 if ( dir != wxLayout_Default )
761 wxTopLevelWindowBase::SetLayoutDirection(dir);
762 }
763
764 // ----------------------------------------------------------------------------
765 // wxTopLevelWindowMSW geometry
766 // ----------------------------------------------------------------------------
767
768 #ifndef __WXWINCE__
769
770 void wxTopLevelWindowMSW::DoGetPosition(int *x, int *y) const
771 {
772 if ( IsIconized() )
773 {
774 WINDOWPLACEMENT wp;
775 wp.length = sizeof(WINDOWPLACEMENT);
776 if ( ::GetWindowPlacement(GetHwnd(), &wp) )
777 {
778 RECT& rc = wp.rcNormalPosition;
779
780 // the position returned by GetWindowPlacement() is in workspace
781 // coordinates except for windows with WS_EX_TOOLWINDOW style
782 if ( !HasFlag(wxFRAME_TOOL_WINDOW) )
783 {
784 // we must use the correct display for the translation as the
785 // task bar might be shown on one display but not the other one
786 int n = wxDisplay::GetFromWindow(this);
787 wxDisplay dpy(n == wxNOT_FOUND ? 0 : n);
788 const wxPoint ptOfs = dpy.GetClientArea().GetPosition() -
789 dpy.GetGeometry().GetPosition();
790
791 rc.left += ptOfs.x;
792 rc.top += ptOfs.y;
793 }
794
795 if ( x )
796 *x = rc.left;
797 if ( y )
798 *y = rc.top;
799
800 return;
801 }
802
803 wxLogLastError(wxT("GetWindowPlacement"));
804 }
805 //else: normal case
806
807 wxTopLevelWindowBase::DoGetPosition(x, y);
808 }
809
810 void wxTopLevelWindowMSW::DoGetSize(int *width, int *height) const
811 {
812 if ( IsIconized() )
813 {
814 WINDOWPLACEMENT wp;
815 wp.length = sizeof(WINDOWPLACEMENT);
816 if ( ::GetWindowPlacement(GetHwnd(), &wp) )
817 {
818 const RECT& rc = wp.rcNormalPosition;
819
820 if ( width )
821 *width = rc.right - rc.left;
822 if ( height )
823 *height = rc.bottom - rc.top;
824
825 return;
826 }
827
828 wxLogLastError(wxT("GetWindowPlacement"));
829 }
830 //else: normal case
831
832 wxTopLevelWindowBase::DoGetSize(width, height);
833 }
834
835 #endif // __WXWINCE__
836
837 // ----------------------------------------------------------------------------
838 // wxTopLevelWindowMSW fullscreen
839 // ----------------------------------------------------------------------------
840
841 bool wxTopLevelWindowMSW::ShowFullScreen(bool show, long style)
842 {
843 if ( show == IsFullScreen() )
844 {
845 // nothing to do
846 return true;
847 }
848
849 m_fsIsShowing = show;
850
851 if ( show )
852 {
853 m_fsStyle = style;
854
855 // zap the frame borders
856
857 // save the 'normal' window style
858 m_fsOldWindowStyle = GetWindowLong(GetHwnd(), GWL_STYLE);
859
860 // save the old position, width & height, maximize state
861 m_fsOldSize = GetRect();
862 m_fsIsMaximized = IsMaximized();
863
864 // decide which window style flags to turn off
865 LONG newStyle = m_fsOldWindowStyle;
866 LONG offFlags = 0;
867
868 if (style & wxFULLSCREEN_NOBORDER)
869 {
870 offFlags |= WS_BORDER;
871 #ifndef __WXWINCE__
872 offFlags |= WS_THICKFRAME;
873 #endif
874 }
875 if (style & wxFULLSCREEN_NOCAPTION)
876 offFlags |= WS_CAPTION | WS_SYSMENU;
877
878 newStyle &= ~offFlags;
879
880 // change our window style to be compatible with full-screen mode
881 ::SetWindowLong(GetHwnd(), GWL_STYLE, newStyle);
882
883 wxRect rect;
884 #if wxUSE_DISPLAY
885 // resize to the size of the display containing us
886 int dpy = wxDisplay::GetFromWindow(this);
887 if ( dpy != wxNOT_FOUND )
888 {
889 rect = wxDisplay(dpy).GetGeometry();
890 }
891 else // fall back to the main desktop
892 #endif // wxUSE_DISPLAY
893 {
894 // resize to the size of the desktop
895 wxCopyRECTToRect(wxGetWindowRect(::GetDesktopWindow()), rect);
896 #ifdef __WXWINCE__
897 // FIXME: size of the bottom menu (toolbar)
898 // should be taken in account
899 rect.height += rect.y;
900 rect.y = 0;
901 #endif
902 }
903
904 SetSize(rect);
905
906 // now flush the window style cache and actually go full-screen
907 long flags = SWP_FRAMECHANGED;
908
909 // showing the frame full screen should also show it if it's still
910 // hidden
911 if ( !IsShown() )
912 {
913 // don't call wxWindow version to avoid flicker from calling
914 // ::ShowWindow() -- we're going to show the window at the correct
915 // location directly below -- but do call the wxWindowBase version
916 // to sync the internal m_isShown flag
917 wxWindowBase::Show();
918
919 flags |= SWP_SHOWWINDOW;
920 }
921
922 SetWindowPos(GetHwnd(), HWND_TOP,
923 rect.x, rect.y, rect.width, rect.height,
924 flags);
925
926 #if !defined(__HANDHELDPC__) && (defined(__WXWINCE__) && (_WIN32_WCE < 400))
927 ::SHFullScreen(GetHwnd(), SHFS_HIDETASKBAR | SHFS_HIDESIPBUTTON);
928 #endif
929
930 // finally send an event allowing the window to relayout itself &c
931 wxSizeEvent event(rect.GetSize(), GetId());
932 HandleWindowEvent(event);
933 }
934 else // stop showing full screen
935 {
936 #if !defined(__HANDHELDPC__) && (defined(__WXWINCE__) && (_WIN32_WCE < 400))
937 ::SHFullScreen(GetHwnd(), SHFS_SHOWTASKBAR | SHFS_SHOWSIPBUTTON);
938 #endif
939 Maximize(m_fsIsMaximized);
940 SetWindowLong(GetHwnd(),GWL_STYLE, m_fsOldWindowStyle);
941 SetWindowPos(GetHwnd(),HWND_TOP,m_fsOldSize.x, m_fsOldSize.y,
942 m_fsOldSize.width, m_fsOldSize.height, SWP_FRAMECHANGED);
943 }
944
945 return true;
946 }
947
948 // ----------------------------------------------------------------------------
949 // wxTopLevelWindowMSW misc
950 // ----------------------------------------------------------------------------
951
952 void wxTopLevelWindowMSW::SetTitle( const wxString& title)
953 {
954 SetLabel(title);
955 }
956
957 wxString wxTopLevelWindowMSW::GetTitle() const
958 {
959 return GetLabel();
960 }
961
962 bool wxTopLevelWindowMSW::DoSelectAndSetIcon(const wxIconBundle& icons,
963 int smX,
964 int smY,
965 int i)
966 {
967 const wxSize size(::GetSystemMetrics(smX), ::GetSystemMetrics(smY));
968
969 const wxIcon icon = icons.GetIconOfExactSize(size);
970 if ( icon.Ok() )
971 {
972 ::SendMessage(GetHwnd(), WM_SETICON, i, (LPARAM)GetHiconOf(icon));
973 return true;
974 }
975
976 return false;
977 }
978
979 void wxTopLevelWindowMSW::SetIcons(const wxIconBundle& icons)
980 {
981 wxTopLevelWindowBase::SetIcons(icons);
982
983 if ( icons.IsEmpty() )
984 {
985 // FIXME: SetIcons(wxNullIconBundle) should unset existing icons,
986 // but we currently don't do that
987 wxASSERT_MSG( m_icons.IsEmpty(), "unsetting icons doesn't work" );
988 return;
989 }
990
991 bool anySet =
992 DoSelectAndSetIcon(icons, SM_CXSMICON, SM_CYSMICON, ICON_SMALL);
993 if ( DoSelectAndSetIcon(icons, SM_CXICON, SM_CYICON, ICON_BIG) )
994 anySet = true;
995
996 if ( !anySet )
997 {
998 wxFAIL_MSG( "icon bundle doesn't contain any suitable icon" );
999 }
1000 }
1001
1002 bool wxTopLevelWindowMSW::EnableCloseButton(bool enable)
1003 {
1004 #if !defined(__WXMICROWIN__)
1005 // get system (a.k.a. window) menu
1006 HMENU hmenu = GetSystemMenu(GetHwnd(), FALSE /* get it */);
1007 if ( !hmenu )
1008 {
1009 // no system menu at all -- ok if we want to remove the close button
1010 // anyhow, but bad if we want to show it
1011 return !enable;
1012 }
1013
1014 // enabling/disabling the close item from it also automatically
1015 // disables/enables the close title bar button
1016 if ( ::EnableMenuItem(hmenu, SC_CLOSE,
1017 MF_BYCOMMAND |
1018 (enable ? MF_ENABLED : MF_GRAYED)) == -1 )
1019 {
1020 wxLogLastError(wxT("EnableMenuItem(SC_CLOSE)"));
1021
1022 return false;
1023 }
1024 #ifndef __WXWINCE__
1025 // update appearance immediately
1026 if ( !::DrawMenuBar(GetHwnd()) )
1027 {
1028 wxLogLastError(wxT("DrawMenuBar"));
1029 }
1030 #endif
1031 #endif // !__WXMICROWIN__
1032
1033 return true;
1034 }
1035
1036 #ifndef __WXWINCE__
1037
1038 bool wxTopLevelWindowMSW::SetShape(const wxRegion& region)
1039 {
1040 wxCHECK_MSG( HasFlag(wxFRAME_SHAPED), false,
1041 wxT("Shaped windows must be created with the wxFRAME_SHAPED style."));
1042
1043 // The empty region signifies that the shape should be removed from the
1044 // window.
1045 if ( region.IsEmpty() )
1046 {
1047 if (::SetWindowRgn(GetHwnd(), NULL, TRUE) == 0)
1048 {
1049 wxLogLastError(wxT("SetWindowRgn"));
1050 return false;
1051 }
1052 return true;
1053 }
1054
1055 // Windows takes ownership of the region, so
1056 // we'll have to make a copy of the region to give to it.
1057 DWORD noBytes = ::GetRegionData(GetHrgnOf(region), 0, NULL);
1058 RGNDATA *rgnData = (RGNDATA*) new char[noBytes];
1059 ::GetRegionData(GetHrgnOf(region), noBytes, rgnData);
1060 HRGN hrgn = ::ExtCreateRegion(NULL, noBytes, rgnData);
1061 delete[] (char*) rgnData;
1062
1063 // SetWindowRgn expects the region to be in coordinants
1064 // relative to the window, not the client area. Figure
1065 // out the offset, if any.
1066 RECT rect;
1067 DWORD dwStyle = ::GetWindowLong(GetHwnd(), GWL_STYLE);
1068 DWORD dwExStyle = ::GetWindowLong(GetHwnd(), GWL_EXSTYLE);
1069 ::GetClientRect(GetHwnd(), &rect);
1070 ::AdjustWindowRectEx(&rect, dwStyle, ::GetMenu(GetHwnd()) != NULL, dwExStyle);
1071 ::OffsetRgn(hrgn, -rect.left, -rect.top);
1072
1073 // Now call the shape API with the new region.
1074 if (::SetWindowRgn(GetHwnd(), hrgn, TRUE) == 0)
1075 {
1076 wxLogLastError(wxT("SetWindowRgn"));
1077 return false;
1078 }
1079 return true;
1080 }
1081
1082 #endif // !__WXWINCE__
1083
1084 void wxTopLevelWindowMSW::RequestUserAttention(int flags)
1085 {
1086 // check if we can use FlashWindowEx(): unfortunately a simple test for
1087 // FLASHW_STOP doesn't work because MSVC6 headers do #define it but don't
1088 // provide FlashWindowEx() declaration, so try to detect whether we have
1089 // real headers for WINVER 0x0500 by checking for existence of a symbol not
1090 // declated in MSVC6 header
1091 #if defined(FLASHW_STOP) && defined(VK_XBUTTON1) && wxUSE_DYNLIB_CLASS
1092 // available in the headers, check if it is supported by the system
1093 typedef BOOL (WINAPI *FlashWindowEx_t)(FLASHWINFO *pfwi);
1094 static FlashWindowEx_t s_pfnFlashWindowEx = NULL;
1095 if ( !s_pfnFlashWindowEx )
1096 {
1097 wxDynamicLibrary dllUser32(wxT("user32.dll"));
1098 s_pfnFlashWindowEx = (FlashWindowEx_t)
1099 dllUser32.GetSymbol(wxT("FlashWindowEx"));
1100
1101 // we can safely unload user32.dll here, it's going to remain loaded as
1102 // long as the program is running anyhow
1103 }
1104
1105 if ( s_pfnFlashWindowEx )
1106 {
1107 WinStruct<FLASHWINFO> fwi;
1108 fwi.hwnd = GetHwnd();
1109 fwi.dwFlags = FLASHW_ALL;
1110 if ( flags & wxUSER_ATTENTION_INFO )
1111 {
1112 // just flash a few times
1113 fwi.uCount = 3;
1114 }
1115 else // wxUSER_ATTENTION_ERROR
1116 {
1117 // flash until the user notices it
1118 fwi.dwFlags |= FLASHW_TIMERNOFG;
1119 }
1120
1121 s_pfnFlashWindowEx(&fwi);
1122 }
1123 else // FlashWindowEx() not available
1124 #endif // FlashWindowEx() defined
1125 {
1126 wxUnusedVar(flags);
1127 #ifndef __WXWINCE__
1128 ::FlashWindow(GetHwnd(), TRUE);
1129 #endif // __WXWINCE__
1130 }
1131 }
1132
1133 // ---------------------------------------------------------------------------
1134
1135 bool wxTopLevelWindowMSW::SetTransparent(wxByte alpha)
1136 {
1137 #if wxUSE_DYNLIB_CLASS
1138 typedef DWORD (WINAPI *PSETLAYEREDWINDOWATTR)(HWND, DWORD, BYTE, DWORD);
1139 static PSETLAYEREDWINDOWATTR
1140 pSetLayeredWindowAttributes = (PSETLAYEREDWINDOWATTR)-1;
1141
1142 if ( pSetLayeredWindowAttributes == (PSETLAYEREDWINDOWATTR)-1 )
1143 {
1144 wxDynamicLibrary dllUser32(wxT("user32.dll"));
1145
1146 // use RawGetSymbol() and not GetSymbol() to avoid error messages under
1147 // Windows 95: there is nothing the user can do about this anyhow
1148 pSetLayeredWindowAttributes = (PSETLAYEREDWINDOWATTR)
1149 dllUser32.RawGetSymbol(wxT("SetLayeredWindowAttributes"));
1150
1151 // it's ok to destroy dllUser32 here, we link statically to user32.dll
1152 // anyhow so it won't be unloaded
1153 }
1154
1155 if ( !pSetLayeredWindowAttributes )
1156 return false;
1157 #endif // wxUSE_DYNLIB_CLASS
1158
1159 LONG exstyle = GetWindowLong(GetHwnd(), GWL_EXSTYLE);
1160
1161 // if setting alpha to fully opaque then turn off the layered style
1162 if (alpha == 255)
1163 {
1164 SetWindowLong(GetHwnd(), GWL_EXSTYLE, exstyle & ~WS_EX_LAYERED);
1165 Refresh();
1166 return true;
1167 }
1168
1169 #if wxUSE_DYNLIB_CLASS
1170 // Otherwise, set the layered style if needed and set the alpha value
1171 if ((exstyle & WS_EX_LAYERED) == 0 )
1172 SetWindowLong(GetHwnd(), GWL_EXSTYLE, exstyle | WS_EX_LAYERED);
1173
1174 if ( pSetLayeredWindowAttributes(GetHwnd(), 0, (BYTE)alpha, LWA_ALPHA) )
1175 return true;
1176 #endif // wxUSE_DYNLIB_CLASS
1177
1178 return false;
1179 }
1180
1181 bool wxTopLevelWindowMSW::CanSetTransparent()
1182 {
1183 // The API is available on win2k and above
1184
1185 static int os_type = -1;
1186 static int ver_major = -1;
1187
1188 if (os_type == -1)
1189 os_type = ::wxGetOsVersion(&ver_major);
1190
1191 return (os_type == wxOS_WINDOWS_NT && ver_major >= 5);
1192 }
1193
1194
1195 void wxTopLevelWindowMSW::DoFreeze()
1196 {
1197 // do nothing: freezing toplevel window causes paint and mouse events
1198 // to go through it any TLWs under it, so the best we can do is to freeze
1199 // all children -- and wxWindowBase::Freeze() does that
1200 }
1201
1202 void wxTopLevelWindowMSW::DoThaw()
1203 {
1204 // intentionally empty -- see DoFreeze()
1205 }
1206
1207
1208 // ----------------------------------------------------------------------------
1209 // wxTopLevelWindow event handling
1210 // ----------------------------------------------------------------------------
1211
1212 // Default activation behaviour - set the focus for the first child
1213 // subwindow found.
1214 void wxTopLevelWindowMSW::OnActivate(wxActivateEvent& event)
1215 {
1216 if ( event.GetActive() )
1217 {
1218 // restore focus to the child which was last focused unless we already
1219 // have it
1220 wxLogTrace(wxT("focus"), wxT("wxTLW %p activated."), m_hWnd);
1221
1222 wxWindow *winFocus = FindFocus();
1223 if ( !winFocus || wxGetTopLevelParent(winFocus) != this )
1224 {
1225 wxWindow *parent = m_winLastFocused ? m_winLastFocused->GetParent()
1226 : NULL;
1227 if ( !parent )
1228 {
1229 parent = this;
1230 }
1231
1232 wxSetFocusToChild(parent, &m_winLastFocused);
1233 }
1234 }
1235 else // deactivating
1236 {
1237 // remember the last focused child if it is our child
1238 m_winLastFocused = FindFocus();
1239
1240 if ( m_winLastFocused )
1241 {
1242 // let it know that it doesn't have focus any more
1243 // But this will already be done via WM_KILLFOCUS, so we'll get two kill
1244 // focus events if we call it explicitly.
1245 // m_winLastFocused->HandleKillFocus((WXHWND)NULL);
1246
1247 // and don't remember it if it's a child from some other frame
1248 if ( wxGetTopLevelParent(m_winLastFocused) != this )
1249 {
1250 m_winLastFocused = NULL;
1251 }
1252 }
1253
1254 wxLogTrace(wxT("focus"),
1255 wxT("wxTLW %p deactivated, last focused: %p."),
1256 m_hWnd,
1257 m_winLastFocused ? GetHwndOf(m_winLastFocused) : NULL);
1258
1259 event.Skip();
1260 }
1261 }
1262
1263 // the DialogProc for all wxWidgets dialogs
1264 LONG APIENTRY _EXPORT
1265 wxDlgProc(HWND hDlg,
1266 UINT message,
1267 WPARAM WXUNUSED(wParam),
1268 LPARAM WXUNUSED(lParam))
1269 {
1270 switch ( message )
1271 {
1272 case WM_INITDIALOG:
1273 {
1274 // under CE, add a "Ok" button in the dialog title bar and make it full
1275 // screen
1276 //
1277 // TODO: find the window for this HWND, and take into account
1278 // wxMAXIMIZE and wxCLOSE_BOX. For now, assume both are present.
1279 //
1280 // Standard SDK doesn't have aygshell.dll: see
1281 // include/wx/msw/wince/libraries.h
1282 #if defined(__WXWINCE__) && !defined(__WINCE_STANDARDSDK__) && !defined(__HANDHELDPC__)
1283 SHINITDLGINFO shidi;
1284 shidi.dwMask = SHIDIM_FLAGS;
1285 shidi.dwFlags = SHIDIF_SIZEDLG // take account of the SIP or menubar
1286 #ifndef __SMARTPHONE__
1287 | SHIDIF_DONEBUTTON
1288 #endif
1289 ;
1290 shidi.hDlg = hDlg;
1291 SHInitDialog( &shidi );
1292 #else // no SHInitDialog()
1293 wxUnusedVar(hDlg);
1294 #endif
1295 // for WM_INITDIALOG, returning TRUE tells system to set focus to
1296 // the first control in the dialog box, but as we set the focus
1297 // ourselves, we return FALSE for it as well
1298 return FALSE;
1299 }
1300 }
1301
1302 // for almost all messages, returning FALSE means that we didn't process
1303 // the message
1304 return FALSE;
1305 }
1306
1307 // ============================================================================
1308 // wxTLWHiddenParentModule implementation
1309 // ============================================================================
1310
1311 HWND wxTLWHiddenParentModule::ms_hwnd = NULL;
1312
1313 const wxChar *wxTLWHiddenParentModule::ms_className = NULL;
1314
1315 bool wxTLWHiddenParentModule::OnInit()
1316 {
1317 ms_hwnd = NULL;
1318 ms_className = NULL;
1319
1320 return true;
1321 }
1322
1323 void wxTLWHiddenParentModule::OnExit()
1324 {
1325 if ( ms_hwnd )
1326 {
1327 if ( !::DestroyWindow(ms_hwnd) )
1328 {
1329 wxLogLastError(wxT("DestroyWindow(hidden TLW parent)"));
1330 }
1331
1332 ms_hwnd = NULL;
1333 }
1334
1335 if ( ms_className )
1336 {
1337 if ( !::UnregisterClass(ms_className, wxGetInstance()) )
1338 {
1339 wxLogLastError(wxT("UnregisterClass(\"wxTLWHiddenParent\")"));
1340 }
1341
1342 ms_className = NULL;
1343 }
1344 }
1345
1346 /* static */
1347 HWND wxTLWHiddenParentModule::GetHWND()
1348 {
1349 if ( !ms_hwnd )
1350 {
1351 if ( !ms_className )
1352 {
1353 static const wxChar *HIDDEN_PARENT_CLASS = wxT("wxTLWHiddenParent");
1354
1355 WNDCLASS wndclass;
1356 wxZeroMemory(wndclass);
1357
1358 wndclass.lpfnWndProc = DefWindowProc;
1359 wndclass.hInstance = wxGetInstance();
1360 wndclass.lpszClassName = HIDDEN_PARENT_CLASS;
1361
1362 if ( !::RegisterClass(&wndclass) )
1363 {
1364 wxLogLastError(wxT("RegisterClass(\"wxTLWHiddenParent\")"));
1365 }
1366 else
1367 {
1368 ms_className = HIDDEN_PARENT_CLASS;
1369 }
1370 }
1371
1372 ms_hwnd = ::CreateWindow(ms_className, wxEmptyString, 0, 0, 0, 0, 0, NULL,
1373 (HMENU)NULL, wxGetInstance(), NULL);
1374 if ( !ms_hwnd )
1375 {
1376 wxLogLastError(wxT("CreateWindow(hidden TLW parent)"));
1377 }
1378 }
1379
1380 return ms_hwnd;
1381 }