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/msw/missing.h"
  31     #include "wx/app.h"
  32     #include "wx/dialog.h"
  33     #include "wx/string.h"
  34     #include "wx/log.h"
  35     #include "wx/intl.h"
  36     #include "wx/frame.h"
  37     #include "wx/containr.h"        // wxSetFocusToChild()
  38     #include "wx/module.h"
  39 #endif //WX_PRECOMP
  40
  41 #include "wx/dynlib.h"
  42
  43 #include "wx/msw/private.h"
  44 #if defined(__WXWINCE__) && !defined(__HANDHELDPC__)
  45     #include <ole2.h>
  46     #include <shellapi.h>
  47     // Standard SDK doesn't have aygshell.dll: see include/wx/msw/wince/libraries.h
  48     #if _WIN32_WCE < 400 || !defined(__WINCE_STANDARDSDK__)
  49         #include <aygshell.h>
  50     #endif
  51     #include "wx/msw/wince/missing.h"
  52 #endif
  53
  54 #include "wx/msw/winundef.h"
  55
  56 #include "wx/display.h"
  57
  58 #ifndef ICON_BIG
  59     #define ICON_BIG 1
  60 #endif
  61
  62 #ifndef ICON_SMALL
  63     #define ICON_SMALL 0
  64 #endif
  65
  66 // ----------------------------------------------------------------------------
  67 // stubs for missing functions under MicroWindows
  68 // ----------------------------------------------------------------------------
  69
  70 #ifdef __WXMICROWIN__
  71
  72 // static inline bool IsIconic(HWND WXUNUSED(hwnd)) { return false; }
  73 static inline bool IsZoomed(HWND WXUNUSED(hwnd)) { return false; }
  74
  75 #endif // __WXMICROWIN__
  76
  77 // NB: wxDlgProc must be defined here and not in dialog.cpp because the latter
  78 //     is not included by wxUniv build which does need wxDlgProc
  79 LONG APIENTRY _EXPORT
  80 wxDlgProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam);
  81
  82 // ----------------------------------------------------------------------------
  83 // globals
  84 // ----------------------------------------------------------------------------
  85
  86 // the name of the default wxWidgets class
  87 #ifdef __WXWINCE__
  88 extern       wxChar *wxCanvasClassName;
  89 #else
  90 extern const wxChar *wxCanvasClassName;
  91 #endif
  92
  93 // ----------------------------------------------------------------------------
  94 // wxTLWHiddenParentModule: used to manage the hidden parent window (we need a
  95 // module to ensure that the window is always deleted)
  96 // ----------------------------------------------------------------------------
  97
  98 class wxTLWHiddenParentModule : public wxModule
  99 {
 100 public:
 101     // module init/finalize
 102     virtual bool OnInit();
 103     virtual void OnExit();
 104
 105     // get the hidden window (creates on demand)
 106     static HWND GetHWND();
 107
 108 private:
 109     // the HWND of the hidden parent
 110     static HWND ms_hwnd;
 111
 112     // the class used to create it
 113     static const wxChar *ms_className;
 114
 115     DECLARE_DYNAMIC_CLASS(wxTLWHiddenParentModule)
 116 };
 117
 118 IMPLEMENT_DYNAMIC_CLASS(wxTLWHiddenParentModule, wxModule)
 119
 120 // ============================================================================
 121 // wxTopLevelWindowMSW implementation
 122 // ============================================================================
 123
 124 BEGIN_EVENT_TABLE(wxTopLevelWindowMSW, wxTopLevelWindowBase)
 125     EVT_ACTIVATE(wxTopLevelWindowMSW::OnActivate)
 126 END_EVENT_TABLE()
 127
 128 // ----------------------------------------------------------------------------
 129 // wxTopLevelWindowMSW creation
 130 // ----------------------------------------------------------------------------
 131
 132 void wxTopLevelWindowMSW::Init()
 133 {
 134     m_iconized =
 135     m_maximizeOnShow = false;
 136
 137     // Data to save/restore when calling ShowFullScreen
 138     m_fsStyle = 0;
 139     m_fsOldWindowStyle = 0;
 140     m_fsIsMaximized = false;
 141     m_fsIsShowing = false;
 142
 143     m_winLastFocused = (wxWindow *)NULL;
 144
 145 #if defined(__SMARTPHONE__) && defined(__WXWINCE__)
 146     m_MenuBarHWND = 0;
 147 #endif
 148
 149 #if defined(__SMARTPHONE__) || defined(__POCKETPC__)
 150     SHACTIVATEINFO* info = new SHACTIVATEINFO;
 151     wxZeroMemory(*info);
 152     info->cbSize = sizeof(SHACTIVATEINFO);
 153
 154     m_activateInfo = (void*) info;
 155 #endif
 156 }
 157
 158 WXDWORD wxTopLevelWindowMSW::MSWGetStyle(long style, WXDWORD *exflags) const
 159 {
 160     // let the base class deal with the common styles but fix the ones which
 161     // don't make sense for us (we also deal with the borders ourselves)
 162     WXDWORD msflags = wxWindow::MSWGetStyle
 163                       (
 164                         (style & ~wxBORDER_MASK) | wxBORDER_NONE, exflags
 165                       ) & ~WS_CHILD & ~WS_VISIBLE;
 166
 167     // For some reason, WS_VISIBLE needs to be defined on creation for
 168     // SmartPhone 2003. The title can fail to be displayed otherwise.
 169 #if defined(__SMARTPHONE__) || (defined(__WXWINCE__) && _WIN32_WCE < 400)
 170     msflags |= WS_VISIBLE;
 171     ((wxTopLevelWindowMSW*)this)->wxWindowBase::Show(true);
 172 #endif
 173
 174     // first select the kind of window being created
 175     //
 176     // note that if we don't set WS_POPUP, Windows assumes WS_OVERLAPPED and
 177     // creates a window with both caption and border, hence we need to use
 178     // WS_POPUP in a few cases just to avoid having caption/border which we
 179     // don't want
 180
 181     // border and caption styles
 182     if ( ( style & wxRESIZE_BORDER ) && !IsAlwaysMaximized())
 183         msflags |= WS_THICKFRAME;
 184     else if ( exflags && ((style & wxBORDER_DOUBLE) || (style & wxBORDER_RAISED)) )
 185         *exflags |= WS_EX_DLGMODALFRAME;
 186     else if ( !(style & wxBORDER_NONE) )
 187         msflags |= WS_BORDER;
 188 #ifndef __POCKETPC__
 189     else
 190         msflags |= WS_POPUP;
 191 #endif
 192
 193     // normally we consider that all windows without a caption must be popups,
 194     // but CE is an exception: there windows normally do not have the caption
 195     // but shouldn't be made popups as popups can't have menus and don't look
 196     // like normal windows anyhow
 197
 198     // TODO: Smartphone appears to like wxCAPTION, but we should check that
 199     // we need it.
 200 #if defined(__SMARTPHONE__) || !defined(__WXWINCE__)
 201     if ( style & wxCAPTION )
 202         msflags |= WS_CAPTION;
 203 #ifndef __WXWINCE__
 204     else
 205         msflags |= WS_POPUP;
 206 #endif // !__WXWINCE__
 207 #endif
 208
 209     // next translate the individual flags
 210
 211     // WS_EX_CONTEXTHELP is incompatible with WS_MINIMIZEBOX and WS_MAXIMIZEBOX
 212     // and is ignored if we specify both of them, but chances are that if we
 213     // use wxWS_EX_CONTEXTHELP, we really do want to have the context help
 214     // button while wxMINIMIZE/wxMAXIMIZE are included by default, so the help
 215     // takes precedence
 216     if ( !(GetExtraStyle() & wxWS_EX_CONTEXTHELP) )
 217     {
 218         if ( style & wxMINIMIZE_BOX )
 219             msflags |= WS_MINIMIZEBOX;
 220         if ( style & wxMAXIMIZE_BOX )
 221             msflags |= WS_MAXIMIZEBOX;
 222     }
 223
 224 #ifndef __WXWINCE__
 225     if ( style & wxSYSTEM_MENU )
 226         msflags |= WS_SYSMENU;
 227 #endif
 228
 229     // NB: under CE these 2 styles are not supported currently, we should
 230     //     call Minimize()/Maximize() "manually" if we want to support them
 231     if ( style & wxMINIMIZE )
 232         msflags |= WS_MINIMIZE;
 233
 234     if ( style & wxMAXIMIZE )
 235         msflags |= WS_MAXIMIZE;
 236
 237     // Keep this here because it saves recoding this function in wxTinyFrame
 238     if ( style & (wxTINY_CAPTION_VERT | wxTINY_CAPTION_HORIZ) )
 239         msflags |= WS_CAPTION;
 240
 241     if ( exflags )
 242     {
 243         // there is no taskbar under CE, so omit all this
 244 #if !defined(__WXWINCE__)
 245         if ( !(GetExtraStyle() & wxTOPLEVEL_EX_DIALOG) )
 246         {
 247             if ( style & wxFRAME_TOOL_WINDOW )
 248             {
 249                 // create the palette-like window
 250                 *exflags |= WS_EX_TOOLWINDOW;
 251
 252                 // tool windows shouldn't appear on the taskbar (as documented)
 253                 style |= wxFRAME_NO_TASKBAR;
 254             }
 255
 256             // We have to solve 2 different problems here:
 257             //
 258             // 1. frames with wxFRAME_NO_TASKBAR flag shouldn't appear in the
 259             //    taskbar even if they don't have a parent
 260             //
 261             // 2. frames without this style should appear in the taskbar even
 262             //    if they're owned (Windows only puts non owned windows into
 263             //    the taskbar normally)
 264             //
 265             // The second one is solved here by using WS_EX_APPWINDOW flag, the
 266             // first one is dealt with in our MSWGetParent() method
 267             // implementation
 268             if ( !(style & wxFRAME_NO_TASKBAR) && GetParent() )
 269             {
 270                 // need to force the frame to appear in the taskbar
 271                 *exflags |= WS_EX_APPWINDOW;
 272             }
 273             //else: nothing to do [here]
 274         }
 275
 276         if ( GetExtraStyle() & wxWS_EX_CONTEXTHELP )
 277             *exflags |= WS_EX_CONTEXTHELP;
 278 #endif // !__WXWINCE__
 279
 280         if ( style & wxSTAY_ON_TOP )
 281             *exflags |= WS_EX_TOPMOST;
 282     }
 283
 284     return msflags;
 285 }
 286
 287 WXHWND wxTopLevelWindowMSW::MSWGetParent() const
 288 {
 289     // for the frames without wxFRAME_FLOAT_ON_PARENT style we should use NULL
 290     // parent HWND or it would be always on top of its parent which is not what
 291     // we usually want (in fact, we only want it for frames with the
 292     // wxFRAME_FLOAT_ON_PARENT flag)
 293     HWND hwndParent = NULL;
 294     if ( HasFlag(wxFRAME_FLOAT_ON_PARENT) )
 295     {
 296         const wxWindow *parent = GetParent();
 297
 298         if ( !parent )
 299         {
 300             // this flag doesn't make sense then and will be ignored
 301             wxFAIL_MSG( _T("wxFRAME_FLOAT_ON_PARENT but no parent?") );
 302         }
 303         else
 304         {
 305             hwndParent = GetHwndOf(parent);
 306         }
 307     }
 308     //else: don't float on parent, must not be owned
 309
 310     // now deal with the 2nd taskbar-related problem (see comments above in
 311     // MSWGetStyle())
 312     if ( HasFlag(wxFRAME_NO_TASKBAR) && !hwndParent )
 313     {
 314         // use hidden parent
 315         hwndParent = wxTLWHiddenParentModule::GetHWND();
 316     }
 317
 318     return (WXHWND)hwndParent;
 319 }
 320
 321 #if defined(__SMARTPHONE__) || defined(__POCKETPC__)
 322 bool wxTopLevelWindowMSW::HandleSettingChange(WXWPARAM wParam, WXLPARAM lParam)
 323 {
 324     SHACTIVATEINFO *info = (SHACTIVATEINFO*) m_activateInfo;
 325     if ( info )
 326     {
 327         SHHandleWMSettingChange(GetHwnd(), wParam, lParam, info);
 328     }
 329
 330     return wxWindowMSW::HandleSettingChange(wParam, lParam);
 331 }
 332 #endif
 333
 334 WXLRESULT wxTopLevelWindowMSW::MSWWindowProc(WXUINT message, WXWPARAM wParam, WXLPARAM lParam)
 335 {
 336     WXLRESULT rc = 0;
 337     bool processed = false;
 338
 339 #if defined(__SMARTPHONE__) || defined(__POCKETPC__)
 340     switch ( message )
 341     {
 342         case WM_ACTIVATE:
 343         {
 344             SHACTIVATEINFO* info = (SHACTIVATEINFO*) m_activateInfo;
 345             if (info)
 346             {
 347                 DWORD flags = 0;
 348                 if (GetExtraStyle() & wxTOPLEVEL_EX_DIALOG) flags = SHA_INPUTDIALOG;
 349                 SHHandleWMActivate(GetHwnd(), wParam, lParam, info, flags);
 350             }
 351
 352             // This implicitly sends a wxEVT_ACTIVATE_APP event
 353             if (wxTheApp)
 354                 wxTheApp->SetActive(wParam != 0, FindFocus());
 355
 356             break;
 357         }
 358         case WM_HIBERNATE:
 359         {
 360             if (wxTheApp)
 361             {
 362                 wxActivateEvent event(wxEVT_HIBERNATE, true, wxID_ANY);
 363                 event.SetEventObject(wxTheApp);
 364                 processed = wxTheApp->ProcessEvent(event);
 365             }
 366             break;
 367         }
 368     }
 369 #endif
 370
 371     if ( !processed )
 372         rc = wxTopLevelWindowBase::MSWWindowProc(message, wParam, lParam);
 373
 374     return rc;
 375 }
 376
 377 bool wxTopLevelWindowMSW::CreateDialog(const void *dlgTemplate,
 378                                        const wxString& title,
 379                                        const wxPoint& pos,
 380                                        const wxSize& size)
 381 {
 382 #ifdef __WXMICROWIN__
 383     // no dialogs support under MicroWin yet
 384     return CreateFrame(title, pos, size);
 385 #else // !__WXMICROWIN__
 386     wxWindow *parent = GetParent();
 387
 388     // for the dialogs without wxDIALOG_NO_PARENT style, use the top level
 389     // app window as parent - this avoids creating modal dialogs without
 390     // parent
 391     if ( !parent && !(GetWindowStyleFlag() & wxDIALOG_NO_PARENT) )
 392     {
 393         parent = wxTheApp->GetTopWindow();
 394
 395         if ( parent )
 396         {
 397             // don't use transient windows as parents, this is dangerous as it
 398             // can lead to a crash if the parent is destroyed before the child
 399             //
 400             // also don't use the window which is currently hidden as then the
 401             // dialog would be hidden as well
 402             if ( (parent->GetExtraStyle() & wxWS_EX_TRANSIENT) ||
 403                     !parent->IsShown() )
 404             {
 405                 parent = NULL;
 406             }
 407         }
 408     }
 409
 410     m_hWnd = (WXHWND)::CreateDialogIndirect
 411                        (
 412                         wxGetInstance(),
 413                         (DLGTEMPLATE*)dlgTemplate,
 414                         parent ? GetHwndOf(parent) : NULL,
 415                         (DLGPROC)wxDlgProc
 416                        );
 417
 418     if ( !m_hWnd )
 419     {
 420         wxFAIL_MSG(wxT("Failed to create dialog. Incorrect DLGTEMPLATE?"));
 421
 422         wxLogSysError(wxT("Can't create dialog using memory template"));
 423
 424         return false;
 425     }
 426
 427     WXDWORD exflags;
 428     (void)MSWGetCreateWindowFlags(&exflags);
 429
 430     if ( exflags )
 431     {
 432         ::SetWindowLong(GetHwnd(), GWL_EXSTYLE, exflags);
 433         ::SetWindowPos(GetHwnd(),
 434                        exflags & WS_EX_TOPMOST ? HWND_TOPMOST : 0,
 435                        0, 0, 0, 0,
 436                        SWP_NOSIZE |
 437                        SWP_NOMOVE |
 438                        (exflags & WS_EX_TOPMOST ? 0 : SWP_NOZORDER) |
 439                        SWP_NOACTIVATE);
 440     }
 441
 442 #if !defined(__WXWINCE__)
 443     // For some reason, the system menu is activated when we use the
 444     // WS_EX_CONTEXTHELP style, so let's set a reasonable icon
 445     if ( exflags & WS_EX_CONTEXTHELP )
 446     {
 447         wxFrame *winTop = wxDynamicCast(wxTheApp->GetTopWindow(), wxFrame);
 448         if ( winTop )
 449         {
 450             wxIcon icon = winTop->GetIcon();
 451             if ( icon.Ok() )
 452             {
 453                 ::SendMessage(GetHwnd(), WM_SETICON,
 454                               (WPARAM)TRUE,
 455                               (LPARAM)GetHiconOf(icon));
 456             }
 457         }
 458     }
 459 #endif
 460
 461     // move the dialog to its initial position without forcing repainting
 462     int x, y, w, h;
 463     (void)MSWGetCreateWindowCoords(pos, size, x, y, w, h);
 464
 465     if ( x == (int)CW_USEDEFAULT )
 466     {
 467         // centre it on the screen - what else can we do?
 468         wxSize sizeDpy = wxGetDisplaySize();
 469
 470         x = (sizeDpy.x - w) / 2;
 471         y = (sizeDpy.y - h) / 2;
 472     }
 473
 474 #if !defined(__WXWINCE__) || defined(__WINCE_STANDARDSDK__)
 475     if ( !::MoveWindow(GetHwnd(), x, y, w, h, FALSE) )
 476     {
 477         wxLogLastError(wxT("MoveWindow"));
 478     }
 479 #endif
 480
 481     if ( !title.empty() )
 482     {
 483         ::SetWindowText(GetHwnd(), title);
 484     }
 485
 486     SubclassWin(m_hWnd);
 487
 488 #ifdef __SMARTPHONE__
 489     // Work around title non-display glitch
 490     Show(false);
 491 #endif
 492
 493     return true;
 494 #endif // __WXMICROWIN__/!__WXMICROWIN__
 495 }
 496
 497 bool wxTopLevelWindowMSW::CreateFrame(const wxString& title,
 498                                       const wxPoint& pos,
 499                                       const wxSize& size)
 500 {
 501     WXDWORD exflags;
 502     WXDWORD flags = MSWGetCreateWindowFlags(&exflags);
 503
 504     const wxSize sz = IsAlwaysMaximized() ? wxDefaultSize : size;
 505
 506 #ifndef __WXWINCE__
 507     if ( wxTheApp->GetLayoutDirection() == wxLayout_RightToLeft )
 508         exflags |= WS_EX_LAYOUTRTL;
 509 #endif
 510
 511     return MSWCreate(wxCanvasClassName, title, pos, sz, flags, exflags);
 512 }
 513
 514 bool wxTopLevelWindowMSW::Create(wxWindow *parent,
 515                                  wxWindowID id,
 516                                  const wxString& title,
 517                                  const wxPoint& pos,
 518                                  const wxSize& size,
 519                                  long style,
 520                                  const wxString& name)
 521 {
 522     bool ret wxDUMMY_INITIALIZE(false);
 523
 524     // init our fields
 525     Init();
 526
 527     wxSize sizeReal = size;
 528     if ( !sizeReal.IsFullySpecified() )
 529     {
 530         sizeReal.SetDefaults(GetDefaultSize());
 531     }
 532
 533     m_windowStyle = style;
 534
 535     SetName(name);
 536
 537     m_windowId = id == wxID_ANY ? NewControlId() : id;
 538
 539     wxTopLevelWindows.Append(this);
 540
 541     if ( parent )
 542         parent->AddChild(this);
 543
 544     if ( GetExtraStyle() & wxTOPLEVEL_EX_DIALOG )
 545     {
 546         // we have different dialog templates to allows creation of dialogs
 547         // with & without captions under MSWindows, resizeable or not (but a
 548         // resizeable dialog always has caption - otherwise it would look too
 549         // strange)
 550
 551         // we need 3 additional WORDs for dialog menu, class and title (as we
 552         // don't use DS_SETFONT we don't need the fourth WORD for the font)
 553         static const int dlgsize = sizeof(DLGTEMPLATE) + (sizeof(WORD) * 3);
 554         DLGTEMPLATE *dlgTemplate = (DLGTEMPLATE *)malloc(dlgsize);
 555         memset(dlgTemplate, 0, dlgsize);
 556
 557         // these values are arbitrary, they won't be used normally anyhow
 558         dlgTemplate->x  = 34;
 559         dlgTemplate->y  = 22;
 560         dlgTemplate->cx = 144;
 561         dlgTemplate->cy = 75;
 562
 563         // reuse the code in MSWGetStyle() but correct the results slightly for
 564         // the dialog
 565         dlgTemplate->style = MSWGetStyle(style, NULL);
 566
 567         // all dialogs are popups
 568         dlgTemplate->style |= WS_POPUP;
 569
 570 #ifndef __WXWINCE__
 571         if ( wxTheApp->GetLayoutDirection() == wxLayout_RightToLeft )
 572         {
 573             dlgTemplate->dwExtendedStyle |= WS_EX_LAYOUTRTL;
 574         }
 575
 576         // force 3D-look if necessary, it looks impossibly ugly otherwise
 577         if ( style & (wxRESIZE_BORDER | wxCAPTION) )
 578             dlgTemplate->style |= DS_MODALFRAME;
 579 #endif
 580
 581         ret = CreateDialog(dlgTemplate, title, pos, sizeReal);
 582         free(dlgTemplate);
 583     }
 584     else // !dialog
 585     {
 586         ret = CreateFrame(title, pos, sizeReal);
 587     }
 588
 589 #ifndef __WXWINCE__
 590     if ( ret && !(GetWindowStyleFlag() & wxCLOSE_BOX) )
 591     {
 592         EnableCloseButton(false);
 593     }
 594 #endif
 595
 596     // for standard dialogs the dialog manager generates WM_CHANGEUISTATE
 597     // itself but for custom windows we have to do it ourselves in order to
 598     // make the keyboard indicators (such as underlines for accelerators and
 599     // focus rectangles) work under Win2k+
 600     if ( ret )
 601     {
 602         MSWUpdateUIState(UIS_INITIALIZE);
 603     }
 604
 605     // Note: if we include PocketPC in this test, dialogs can fail to show up,
 606     // for example the text entry dialog in the dialogs sample. Problem with Maximise()?
 607 #if defined(__WXWINCE__) && (defined(__SMARTPHONE__) || defined(__WINCE_STANDARDSDK__))
 608     if ( ( style & wxMAXIMIZE ) || IsAlwaysMaximized() )
 609     {
 610         this->Maximize();
 611     }
 612 #endif
 613
 614 #if defined(__SMARTPHONE__) && defined(__WXWINCE__)
 615     SetRightMenu(); // to nothing for initialization
 616 #endif
 617
 618     return ret;
 619 }
 620
 621 wxTopLevelWindowMSW::~wxTopLevelWindowMSW()
 622 {
 623 #if defined(__SMARTPHONE__) || defined(__POCKETPC__)
 624     SHACTIVATEINFO* info = (SHACTIVATEINFO*) m_activateInfo;
 625     delete info;
 626     m_activateInfo = NULL;
 627 #endif
 628
 629     // after destroying an owned window, Windows activates the next top level
 630     // window in Z order but it may be different from our owner (to reproduce
 631     // this simply Alt-TAB to another application and back before closing the
 632     // owned frame) whereas we always want to yield activation to our parent
 633     if ( HasFlag(wxFRAME_FLOAT_ON_PARENT) )
 634     {
 635         wxWindow *parent = GetParent();
 636         if ( parent )
 637         {
 638             ::BringWindowToTop(GetHwndOf(parent));
 639         }
 640     }
 641 }
 642
 643 // ----------------------------------------------------------------------------
 644 // wxTopLevelWindowMSW showing
 645 // ----------------------------------------------------------------------------
 646
 647 void wxTopLevelWindowMSW::DoShowWindow(int nShowCmd)
 648 {
 649     ::ShowWindow(GetHwnd(), nShowCmd);
 650
 651     m_iconized = nShowCmd == SW_MINIMIZE;
 652 }
 653
 654 bool wxTopLevelWindowMSW::Show(bool show)
 655 {
 656     // don't use wxWindow version as we want to call DoShowWindow() ourselves
 657     if ( !wxWindowBase::Show(show) )
 658         return false;
 659
 660     int nShowCmd;
 661     if ( show )
 662     {
 663         if ( m_maximizeOnShow )
 664         {
 665             // show and maximize
 666             nShowCmd = SW_MAXIMIZE;
 667
 668             // This is necessary, or no window appears
 669 #if defined( __WINCE_STANDARDSDK__) || defined(__SMARTPHONE__)
 670             DoShowWindow(SW_SHOW);
 671 #endif
 672
 673             m_maximizeOnShow = false;
 674         }
 675         else // just show
 676         {
 677            if ( GetWindowStyle() & wxFRAME_TOOL_WINDOW )
 678                nShowCmd = SW_SHOWNA;
 679            else
 680                nShowCmd = SW_SHOW;
 681         }
 682     }
 683     else // hide
 684     {
 685         nShowCmd = SW_HIDE;
 686     }
 687
 688     DoShowWindow(nShowCmd);
 689
 690 #if defined(__WXWINCE__) && (_WIN32_WCE >= 400 && !defined(__POCKETPC__) && !defined(__SMARTPHONE__))
 691     // Addornments have to be added when the frame is the correct size
 692     wxFrame* frame = wxDynamicCast(this, wxFrame);
 693     if (frame && frame->GetMenuBar())
 694         frame->GetMenuBar()->AddAdornments(GetWindowStyleFlag());
 695 #endif
 696
 697     // we only set pending size if we're maximized before being shown, now that
 698     // we're shown we don't need it any more (it is reset in size event handler
 699     // for child windows but we have to do it ourselves for this parent window)
 700     m_pendingSize = wxDefaultSize;
 701
 702     return true;
 703 }
 704
 705 // ----------------------------------------------------------------------------
 706 // wxTopLevelWindowMSW maximize/minimize
 707 // ----------------------------------------------------------------------------
 708
 709 void wxTopLevelWindowMSW::Maximize(bool maximize)
 710 {
 711     if ( IsShown() )
 712     {
 713         // just maximize it directly
 714         DoShowWindow(maximize ? SW_MAXIMIZE : SW_RESTORE);
 715     }
 716     else // hidden
 717     {
 718         // we can't maximize the hidden frame because it shows it as well,
 719         // so just remember that we should do it later in this case
 720         m_maximizeOnShow = maximize;
 721
 722         // after calling Maximize() the client code expects to get the frame
 723         // "real" size and doesn't want to know that, because of implementation
 724         // details, the frame isn't really maximized yet but will be only once
 725         // it's shown, so return our size as it will be then in this case
 726         if ( maximize )
 727         {
 728             // we must only change pending size here, and not call SetSize()
 729             // because otherwise Windows would think that this (full screen)
 730             // size is the natural size for the frame and so would use it when
 731             // the user clicks on "restore" title bar button instead of the
 732             // correct initial frame size
 733             //
 734             // NB: unfortunately we don't know which display we're on yet so we
 735             //     have to use the default one
 736             m_pendingSize = wxGetClientDisplayRect().GetSize();
 737         }
 738         //else: can't do anything in this case, we don't have the old size
 739     }
 740 }
 741
 742 bool wxTopLevelWindowMSW::IsMaximized() const
 743 {
 744     return IsAlwaysMaximized() ||
 745 #if !defined(__SMARTPHONE__) && !defined(__POCKETPC__)
 746            (::IsZoomed(GetHwnd()) != 0) ||
 747 #endif
 748            m_maximizeOnShow;
 749 }
 750
 751 void wxTopLevelWindowMSW::Iconize(bool iconize)
 752 {
 753     DoShowWindow(iconize ? SW_MINIMIZE : SW_RESTORE);
 754 }
 755
 756 bool wxTopLevelWindowMSW::IsIconized() const
 757 {
 758 #ifdef __WXWINCE__
 759     return false;
 760 #else
 761     // don't use m_iconized, it may be briefly out of sync with the real state
 762     // as it's only modified when we receive a WM_SIZE and we could be called
 763     // from an event handler from one of the messages we receive before it,
 764     // such as WM_MOVE
 765     return ::IsIconic(GetHwnd()) != 0;
 766 #endif
 767 }
 768
 769 void wxTopLevelWindowMSW::Restore()
 770 {
 771     DoShowWindow(SW_RESTORE);
 772 }
 773
 774 void wxTopLevelWindowMSW::SetLayoutDirection(wxLayoutDirection dir)
 775 {
 776     if ( dir == wxLayout_Default )
 777         dir = wxTheApp->GetLayoutDirection();
 778
 779     if ( dir != wxLayout_Default )
 780         wxTopLevelWindowBase::SetLayoutDirection(dir);
 781 }
 782
 783 // ----------------------------------------------------------------------------
 784 // wxTopLevelWindowMSW geometry
 785 // ----------------------------------------------------------------------------
 786
 787 void wxTopLevelWindowMSW::DoGetPosition(int *x, int *y) const
 788 {
 789
 790 #ifndef __WXWINCE__
 791
 792     if ( IsIconized() )
 793     {
 794         WINDOWPLACEMENT wp;
 795         wp.length = sizeof(WINDOWPLACEMENT);
 796         if ( ::GetWindowPlacement(GetHwnd(), &wp) )
 797         {
 798             RECT& rc = wp.rcNormalPosition;
 799
 800             // the position returned by GetWindowPlacement() is in workspace
 801             // coordinates except for windows with WS_EX_TOOLWINDOW style
 802             if ( !HasFlag(wxFRAME_TOOL_WINDOW) )
 803             {
 804                 // we must use the correct display for the translation as the
 805                 // task bar might be shown on one display but not the other one
 806                 int n = wxDisplay::GetFromWindow(this);
 807                 wxDisplay dpy(n == wxNOT_FOUND ? 0 : n);
 808                 const wxPoint ptOfs = dpy.GetClientArea().GetPosition() -
 809                                       dpy.GetGeometry().GetPosition();
 810
 811                 rc.left += ptOfs.x;
 812                 rc.top += ptOfs.y;
 813             }
 814
 815             if ( x )
 816                 *x = rc.left;
 817             if ( y )
 818                 *y = rc.top;
 819
 820             return;
 821         }
 822
 823         wxLogLastError(_T("GetWindowPlacement"));
 824     }
 825     //else: normal case
 826
 827 #endif // __WXWINCE__
 828
 829     wxTopLevelWindowBase::DoGetPosition(x, y);
 830 }
 831
 832 void wxTopLevelWindowMSW::DoGetSize(int *width, int *height) const
 833 {
 834 #ifndef __WXWINCE__
 835
 836     if ( IsIconized() )
 837     {
 838         WINDOWPLACEMENT wp;
 839         wp.length = sizeof(WINDOWPLACEMENT);
 840         if ( ::GetWindowPlacement(GetHwnd(), &wp) )
 841         {
 842             const RECT& rc = wp.rcNormalPosition;
 843
 844             if ( width )
 845                 *width = rc.right - rc.left;
 846             if ( height )
 847                 *height = rc.bottom - rc.top;
 848
 849             return;
 850         }
 851
 852         wxLogLastError(_T("GetWindowPlacement"));
 853     }
 854     //else: normal case
 855
 856 #endif
 857
 858     wxTopLevelWindowBase::DoGetSize(width, height);
 859 }
 860
 861 // ----------------------------------------------------------------------------
 862 // wxTopLevelWindowMSW fullscreen
 863 // ----------------------------------------------------------------------------
 864
 865 bool wxTopLevelWindowMSW::ShowFullScreen(bool show, long style)
 866 {
 867     if ( show == IsFullScreen() )
 868     {
 869         // nothing to do
 870         return true;
 871     }
 872
 873     m_fsIsShowing = show;
 874
 875     if ( show )
 876     {
 877         m_fsStyle = style;
 878
 879         // zap the frame borders
 880
 881         // save the 'normal' window style
 882         m_fsOldWindowStyle = GetWindowLong(GetHwnd(), GWL_STYLE);
 883
 884         // save the old position, width & height, maximize state
 885         m_fsOldSize = GetRect();
 886         m_fsIsMaximized = IsMaximized();
 887
 888         // decide which window style flags to turn off
 889         LONG newStyle = m_fsOldWindowStyle;
 890         LONG offFlags = 0;
 891
 892         if (style & wxFULLSCREEN_NOBORDER)
 893         {
 894             offFlags |= WS_BORDER;
 895 #ifndef __WXWINCE__
 896             offFlags |= WS_THICKFRAME;
 897 #endif
 898         }
 899         if (style & wxFULLSCREEN_NOCAPTION)
 900             offFlags |= WS_CAPTION | WS_SYSMENU;
 901
 902         newStyle &= ~offFlags;
 903
 904         // change our window style to be compatible with full-screen mode
 905         ::SetWindowLong(GetHwnd(), GWL_STYLE, newStyle);
 906
 907         wxRect rect;
 908 #if wxUSE_DISPLAY
 909         // resize to the size of the display containing us
 910         int dpy = wxDisplay::GetFromWindow(this);
 911         if ( dpy != wxNOT_FOUND )
 912         {
 913             rect = wxDisplay(dpy).GetGeometry();
 914         }
 915         else // fall back to the main desktop
 916 #endif // wxUSE_DISPLAY
 917         {
 918             // resize to the size of the desktop
 919             wxCopyRECTToRect(wxGetWindowRect(::GetDesktopWindow()), rect);
 920 #ifdef __WXWINCE__
 921             // FIXME: size of the bottom menu (toolbar)
 922             // should be taken in account
 923             rect.height += rect.y;
 924             rect.y       = 0;
 925 #endif
 926         }
 927
 928         SetSize(rect);
 929
 930         // now flush the window style cache and actually go full-screen
 931         long flags = SWP_FRAMECHANGED;
 932
 933         // showing the frame full screen should also show it if it's still
 934         // hidden
 935         if ( !IsShown() )
 936         {
 937             // don't call wxWindow version to avoid flicker from calling
 938             // ::ShowWindow() -- we're going to show the window at the correct
 939             // location directly below -- but do call the wxWindowBase version
 940             // to sync the internal m_isShown flag
 941             wxWindowBase::Show();
 942
 943             flags |= SWP_SHOWWINDOW;
 944         }
 945
 946         SetWindowPos(GetHwnd(), HWND_TOP,
 947                      rect.x, rect.y, rect.width, rect.height,
 948                      flags);
 949
 950 #if !defined(__HANDHELDPC__) && (defined(__WXWINCE__) && (_WIN32_WCE < 400))
 951         ::SHFullScreen(GetHwnd(), SHFS_HIDETASKBAR | SHFS_HIDESIPBUTTON);
 952 #endif
 953
 954         // finally send an event allowing the window to relayout itself &c
 955         wxSizeEvent event(rect.GetSize(), GetId());
 956         GetEventHandler()->ProcessEvent(event);
 957     }
 958     else // stop showing full screen
 959     {
 960 #if !defined(__HANDHELDPC__) && (defined(__WXWINCE__) && (_WIN32_WCE < 400))
 961         ::SHFullScreen(GetHwnd(), SHFS_SHOWTASKBAR | SHFS_SHOWSIPBUTTON);
 962 #endif
 963         Maximize(m_fsIsMaximized);
 964         SetWindowLong(GetHwnd(),GWL_STYLE, m_fsOldWindowStyle);
 965         SetWindowPos(GetHwnd(),HWND_TOP,m_fsOldSize.x, m_fsOldSize.y,
 966             m_fsOldSize.width, m_fsOldSize.height, SWP_FRAMECHANGED);
 967     }
 968
 969     return true;
 970 }
 971
 972 // ----------------------------------------------------------------------------
 973 // wxTopLevelWindowMSW misc
 974 // ----------------------------------------------------------------------------
 975
 976 void wxTopLevelWindowMSW::SetTitle( const wxString& title)
 977 {
 978     SetLabel(title);
 979 }
 980
 981 wxString wxTopLevelWindowMSW::GetTitle() const
 982 {
 983     return GetLabel();
 984 }
 985
 986 void wxTopLevelWindowMSW::SetIcon(const wxIcon& icon)
 987 {
 988     SetIcons( wxIconBundle( icon ) );
 989 }
 990
 991 void wxTopLevelWindowMSW::SetIcons(const wxIconBundle& icons)
 992 {
 993     wxTopLevelWindowBase::SetIcons(icons);
 994
 995 #if !defined(__WXMICROWIN__)
 996     const wxIcon& sml = icons.GetIcon( wxSize( 16, 16 ) );
 997     if( sml.Ok() && sml.GetWidth() == 16 && sml.GetHeight() == 16 )
 998     {
 999         ::SendMessage( GetHwndOf( this ), WM_SETICON, ICON_SMALL,
1000                        (LPARAM)GetHiconOf(sml) );
1001     }
1002
1003     const wxIcon& big = icons.GetIcon( wxSize( 32, 32 ) );
1004     if( big.Ok() && big.GetWidth() == 32 && big.GetHeight() == 32 )
1005     {
1006         ::SendMessage( GetHwndOf( this ), WM_SETICON, ICON_BIG,
1007                        (LPARAM)GetHiconOf(big) );
1008     }
1009 #endif // !__WXMICROWIN__
1010 }
1011
1012 bool wxTopLevelWindowMSW::EnableCloseButton(bool enable)
1013 {
1014 #if !defined(__WXMICROWIN__)
1015     // get system (a.k.a. window) menu
1016     HMENU hmenu = GetSystemMenu(GetHwnd(), FALSE /* get it */);
1017     if ( !hmenu )
1018     {
1019         // no system menu at all -- ok if we want to remove the close button
1020         // anyhow, but bad if we want to show it
1021         return !enable;
1022     }
1023
1024     // enabling/disabling the close item from it also automatically
1025     // disables/enables the close title bar button
1026     if ( ::EnableMenuItem(hmenu, SC_CLOSE,
1027                           MF_BYCOMMAND |
1028                           (enable ? MF_ENABLED : MF_GRAYED)) == -1 )
1029     {
1030         wxLogLastError(_T("EnableMenuItem(SC_CLOSE)"));
1031
1032         return false;
1033     }
1034 #ifndef __WXWINCE__
1035     // update appearance immediately
1036     if ( !::DrawMenuBar(GetHwnd()) )
1037     {
1038         wxLogLastError(_T("DrawMenuBar"));
1039     }
1040 #endif
1041 #endif // !__WXMICROWIN__
1042
1043     return true;
1044 }
1045
1046 #ifndef __WXWINCE__
1047
1048 bool wxTopLevelWindowMSW::SetShape(const wxRegion& region)
1049 {
1050     wxCHECK_MSG( HasFlag(wxFRAME_SHAPED), false,
1051                  _T("Shaped windows must be created with the wxFRAME_SHAPED style."));
1052
1053     // The empty region signifies that the shape should be removed from the
1054     // window.
1055     if ( region.IsEmpty() )
1056     {
1057         if (::SetWindowRgn(GetHwnd(), NULL, TRUE) == 0)
1058         {
1059             wxLogLastError(_T("SetWindowRgn"));
1060             return false;
1061         }
1062         return true;
1063     }
1064
1065     // Windows takes ownership of the region, so
1066     // we'll have to make a copy of the region to give to it.
1067     DWORD noBytes = ::GetRegionData(GetHrgnOf(region), 0, NULL);
1068     RGNDATA *rgnData = (RGNDATA*) new char[noBytes];
1069     ::GetRegionData(GetHrgnOf(region), noBytes, rgnData);
1070     HRGN hrgn = ::ExtCreateRegion(NULL, noBytes, rgnData);
1071     delete[] (char*) rgnData;
1072
1073     // SetWindowRgn expects the region to be in coordinants
1074     // relative to the window, not the client area.  Figure
1075     // out the offset, if any.
1076     RECT rect;
1077     DWORD dwStyle =   ::GetWindowLong(GetHwnd(), GWL_STYLE);
1078     DWORD dwExStyle = ::GetWindowLong(GetHwnd(), GWL_EXSTYLE);
1079     ::GetClientRect(GetHwnd(), &rect);
1080     ::AdjustWindowRectEx(&rect, dwStyle, FALSE, dwExStyle);
1081     ::OffsetRgn(hrgn, -rect.left, -rect.top);
1082
1083     // Now call the shape API with the new region.
1084     if (::SetWindowRgn(GetHwnd(), hrgn, TRUE) == 0)
1085     {
1086         wxLogLastError(_T("SetWindowRgn"));
1087         return false;
1088     }
1089     return true;
1090 }
1091
1092 #endif // !__WXWINCE__
1093
1094 void wxTopLevelWindowMSW::RequestUserAttention(int flags)
1095 {
1096     // check if we can use FlashWindowEx(): unfortunately a simple test for
1097     // FLASHW_STOP doesn't work because MSVC6 headers do #define it but don't
1098     // provide FlashWindowEx() declaration, so try to detect whether we have
1099     // real headers for WINVER 0x0500 by checking for existence of a symbol not
1100     // declated in MSVC6 header
1101 #if defined(FLASHW_STOP) && defined(VK_XBUTTON1)
1102     // available in the headers, check if it is supported by the system
1103     typedef BOOL (WINAPI *FlashWindowEx_t)(FLASHWINFO *pfwi);
1104     FlashWindowEx_t s_pfnFlashWindowEx = NULL;
1105     if ( !s_pfnFlashWindowEx )
1106     {
1107         wxDynamicLibrary dllUser32(_T("user32.dll"));
1108         s_pfnFlashWindowEx = (FlashWindowEx_t)
1109                                 dllUser32.GetSymbol(_T("FlashWindowEx"));
1110
1111         // we can safely unload user32.dll here, it's going to remain loaded as
1112         // long as the program is running anyhow
1113     }
1114
1115     if ( s_pfnFlashWindowEx )
1116     {
1117         WinStruct<FLASHWINFO> fwi;
1118         fwi.hwnd = GetHwnd();
1119         fwi.dwFlags = FLASHW_ALL;
1120         if ( flags & wxUSER_ATTENTION_INFO )
1121         {
1122             // just flash a few times
1123             fwi.uCount = 3;
1124         }
1125         else // wxUSER_ATTENTION_ERROR
1126         {
1127             // flash until the user notices it
1128             fwi.dwFlags |= FLASHW_TIMERNOFG;
1129         }
1130
1131         s_pfnFlashWindowEx(&fwi);
1132     }
1133     else // FlashWindowEx() not available
1134 #endif // FlashWindowEx() defined
1135     {
1136         wxUnusedVar(flags);
1137 #ifndef __WXWINCE__
1138         ::FlashWindow(GetHwnd(), TRUE);
1139 #endif // __WXWINCE__
1140     }
1141 }
1142
1143 // ---------------------------------------------------------------------------
1144
1145 bool wxTopLevelWindowMSW::SetTransparent(wxByte alpha)
1146 {
1147     typedef DWORD (WINAPI *PSETLAYEREDWINDOWATTR)(HWND, DWORD, BYTE, DWORD);
1148     static PSETLAYEREDWINDOWATTR pSetLayeredWindowAttributes = NULL;
1149
1150     if ( pSetLayeredWindowAttributes == NULL )
1151     {
1152         wxDynamicLibrary dllUser32(_T("user32.dll"));
1153         pSetLayeredWindowAttributes = (PSETLAYEREDWINDOWATTR)
1154             dllUser32.GetSymbol(wxT("SetLayeredWindowAttributes"));
1155     }
1156     if ( pSetLayeredWindowAttributes == NULL )
1157         return false;
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     // Otherwise, set the layered style if needed and set the alpha value
1170     if ((exstyle & WS_EX_LAYERED) == 0 )
1171         SetWindowLong(GetHwnd(), GWL_EXSTYLE, exstyle | WS_EX_LAYERED);
1172
1173     return pSetLayeredWindowAttributes(GetHwnd(), 0, (BYTE)alpha, LWA_ALPHA) != 0;
1174 }
1175
1176 bool wxTopLevelWindowMSW::CanSetTransparent()
1177 {
1178     // The API is available on win2k and above
1179
1180     static int os_type = -1;
1181     static int ver_major = -1;
1182
1183     if (os_type == -1)
1184         os_type = ::wxGetOsVersion(&ver_major);
1185
1186     return (os_type == wxOS_WINDOWS_NT && ver_major >= 5);
1187 }
1188
1189 // ----------------------------------------------------------------------------
1190 // wxTopLevelWindow event handling
1191 // ----------------------------------------------------------------------------
1192
1193 // Default activation behaviour - set the focus for the first child
1194 // subwindow found.
1195 void wxTopLevelWindowMSW::OnActivate(wxActivateEvent& event)
1196 {
1197     if ( event.GetActive() )
1198     {
1199         // restore focus to the child which was last focused unless we already
1200         // have it
1201         wxLogTrace(_T("focus"), _T("wxTLW %08x activated."), (int) m_hWnd);
1202
1203         wxWindow *winFocus = FindFocus();
1204         if ( !winFocus || wxGetTopLevelParent(winFocus) != this )
1205         {
1206             wxWindow *parent = m_winLastFocused ? m_winLastFocused->GetParent()
1207                                                 : NULL;
1208             if ( !parent )
1209             {
1210                 parent = this;
1211             }
1212
1213             wxSetFocusToChild(parent, &m_winLastFocused);
1214         }
1215     }
1216     else // deactivating
1217     {
1218         // remember the last focused child if it is our child
1219         m_winLastFocused = FindFocus();
1220
1221         if ( m_winLastFocused )
1222         {
1223             // let it know that it doesn't have focus any more
1224             m_winLastFocused->HandleKillFocus((WXHWND)NULL);
1225
1226             // and don't remember it if it's a child from some other frame
1227             if ( wxGetTopLevelParent(m_winLastFocused) != this )
1228             {
1229                 m_winLastFocused = NULL;
1230             }
1231         }
1232
1233         wxLogTrace(_T("focus"),
1234                    _T("wxTLW %08x deactivated, last focused: %08x."),
1235                    (int) m_hWnd,
1236                    (int) (m_winLastFocused ? GetHwndOf(m_winLastFocused)
1237                                            : NULL));
1238
1239         event.Skip();
1240     }
1241 }
1242
1243 // the DialogProc for all wxWidgets dialogs
1244 LONG APIENTRY _EXPORT
1245 wxDlgProc(HWND hDlg,
1246           UINT message,
1247           WPARAM WXUNUSED(wParam),
1248           LPARAM WXUNUSED(lParam))
1249 {
1250     switch ( message )
1251     {
1252         case WM_INITDIALOG:
1253         {
1254             // under CE, add a "Ok" button in the dialog title bar and make it full
1255             // screen
1256             //
1257             // TODO: find the window for this HWND, and take into account
1258             // wxMAXIMIZE and wxCLOSE_BOX. For now, assume both are present.
1259             //
1260             // Standard SDK doesn't have aygshell.dll: see
1261             // include/wx/msw/wince/libraries.h
1262 #if defined(__WXWINCE__) && !defined(__WINCE_STANDARDSDK__) && !defined(__HANDHELDPC__)
1263             SHINITDLGINFO shidi;
1264             shidi.dwMask = SHIDIM_FLAGS;
1265             shidi.dwFlags = SHIDIF_SIZEDLG // take account of the SIP or menubar
1266 #ifndef __SMARTPHONE__
1267                             | SHIDIF_DONEBUTTON
1268 #endif
1269                         ;
1270             shidi.hDlg = hDlg;
1271             SHInitDialog( &shidi );
1272 #else // no SHInitDialog()
1273             wxUnusedVar(hDlg);
1274 #endif
1275             // for WM_INITDIALOG, returning TRUE tells system to set focus to
1276             // the first control in the dialog box, but as we set the focus
1277             // ourselves, we return FALSE for it as well
1278             return FALSE;
1279         }
1280     }
1281
1282     // for almost all messages, returning FALSE means that we didn't process
1283     // the message
1284     return FALSE;
1285 }
1286
1287 // ============================================================================
1288 // wxTLWHiddenParentModule implementation
1289 // ============================================================================
1290
1291 HWND wxTLWHiddenParentModule::ms_hwnd = NULL;
1292
1293 const wxChar *wxTLWHiddenParentModule::ms_className = NULL;
1294
1295 bool wxTLWHiddenParentModule::OnInit()
1296 {
1297     ms_hwnd = NULL;
1298     ms_className = NULL;
1299
1300     return true;
1301 }
1302
1303 void wxTLWHiddenParentModule::OnExit()
1304 {
1305     if ( ms_hwnd )
1306     {
1307         if ( !::DestroyWindow(ms_hwnd) )
1308         {
1309             wxLogLastError(_T("DestroyWindow(hidden TLW parent)"));
1310         }
1311
1312         ms_hwnd = NULL;
1313     }
1314
1315     if ( ms_className )
1316     {
1317         if ( !::UnregisterClass(ms_className, wxGetInstance()) )
1318         {
1319             wxLogLastError(_T("UnregisterClass(\"wxTLWHiddenParent\")"));
1320         }
1321
1322         ms_className = NULL;
1323     }
1324 }
1325
1326 /* static */
1327 HWND wxTLWHiddenParentModule::GetHWND()
1328 {
1329     if ( !ms_hwnd )
1330     {
1331         if ( !ms_className )
1332         {
1333             static const wxChar *HIDDEN_PARENT_CLASS = _T("wxTLWHiddenParent");
1334
1335             WNDCLASS wndclass;
1336             wxZeroMemory(wndclass);
1337
1338             wndclass.lpfnWndProc   = DefWindowProc;
1339             wndclass.hInstance     = wxGetInstance();
1340             wndclass.lpszClassName = HIDDEN_PARENT_CLASS;
1341
1342             if ( !::RegisterClass(&wndclass) )
1343             {
1344                 wxLogLastError(_T("RegisterClass(\"wxTLWHiddenParent\")"));
1345             }
1346             else
1347             {
1348                 ms_className = HIDDEN_PARENT_CLASS;
1349             }
1350         }
1351
1352         ms_hwnd = ::CreateWindow(ms_className, wxEmptyString, 0, 0, 0, 0, 0, NULL,
1353                                  (HMENU)NULL, wxGetInstance(), NULL);
1354         if ( !ms_hwnd )
1355         {
1356             wxLogLastError(_T("CreateWindow(hidden TLW parent)"));
1357         }
1358     }
1359
1360     return ms_hwnd;
1361 }