src/msw/app.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        app.cpp
   3 // Purpose:     wxApp
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart and Markus Holzem
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "app.h"
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #if defined(__BORLANDC__)
  20 #pragma hdrstop
  21 #endif
  22
  23 #ifndef WX_PRECOMP
  24   #include "wx/frame.h"
  25   #include "wx/app.h"
  26   #include "wx/utils.h"
  27   #include "wx/gdicmn.h"
  28   #include "wx/pen.h"
  29   #include "wx/brush.h"
  30   #include "wx/cursor.h"
  31   #include "wx/icon.h"
  32   #include "wx/palette.h"
  33   #include "wx/dc.h"
  34   #include "wx/dialog.h"
  35   #include "wx/msgdlg.h"
  36 #endif
  37
  38 #include "wx/msw/private.h"
  39 #include "wx/log.h"
  40 #include "wx/module.h"
  41
  42 #if wxUSE_WX_RESOURCES
  43   #include "wx/resource.h"
  44 #endif
  45
  46 #if wxUSE_DRAG_AND_DROP
  47 #include <ole2.h>
  48 #endif
  49 #include <string.h>
  50 #include <ctype.h>
  51
  52 #if defined(__WIN95__) && !defined(__GNUWIN32__)
  53   #include <commctrl.h>
  54 #endif
  55
  56 // use debug CRT functions for memory leak detections in VC++ if we're not
  57 // using wxWindows own methods
  58 #if defined(__WXDEBUG__) && defined(_MSC_VER) && !wxUSE_GLOBAL_MEMORY_OPERATORS && !defined(__NO_VC_CRTDBG__)
  59     #define wxUSE_VC_CRTDBG
  60 #else
  61     #undef wxUSE_VC_CRTDBG
  62 #endif
  63
  64 #ifdef wxUSE_VC_CRTDBG
  65   // VC++ uses this macro as debug/release mode indicator
  66   #ifndef _DEBUG
  67     #define _DEBUG
  68   #endif
  69
  70   /* Need to undef new if including crtdbg.h */
  71   #ifdef new
  72   #undef new
  73   #endif
  74
  75   #include <crtdbg.h>
  76
  77   #if defined(__WXDEBUG__) && wxUSE_GLOBAL_MEMORY_OPERATORS && wxUSE_DEBUG_NEW_ALWAYS
  78   #define new new(__FILE__,__LINE__)
  79   #endif
  80
  81 #endif
  82
  83 extern char *wxBuffer;
  84 extern char *wxOsVersion;
  85 extern wxList *wxWinHandleList;
  86 extern wxList wxPendingDelete;
  87 extern void wxSetKeyboardHook(bool doIt);
  88 extern wxCursor *g_globalCursor;
  89
  90 HINSTANCE wxhInstance = 0;
  91 static MSG s_currentMsg;
  92 wxApp *wxTheApp = NULL;
  93
  94 // @@ why not const? and not static?
  95 char wxFrameClassName[]         = "wxFrameClass";
  96 char wxMDIFrameClassName[]      = "wxMDIFrameClass";
  97 char wxMDIChildFrameClassName[] = "wxMDIChildFrameClass";
  98 char wxPanelClassName[]         = "wxPanelClass";
  99 char wxCanvasClassName[]        = "wxCanvasClass";
 100
 101 HICON wxSTD_FRAME_ICON = NULL;
 102 HICON wxSTD_MDICHILDFRAME_ICON = NULL;
 103 HICON wxSTD_MDIPARENTFRAME_ICON = NULL;
 104
 105 HICON wxDEFAULT_FRAME_ICON = NULL;
 106 HICON wxDEFAULT_MDICHILDFRAME_ICON = NULL;
 107 HICON wxDEFAULT_MDIPARENTFRAME_ICON = NULL;
 108
 109 HBRUSH wxDisableButtonBrush = 0;
 110
 111 LRESULT APIENTRY wxWndProc(HWND, UINT, WPARAM, LPARAM);
 112
 113 #if !USE_SHARED_LIBRARY
 114   IMPLEMENT_DYNAMIC_CLASS(wxApp, wxEvtHandler)
 115
 116   BEGIN_EVENT_TABLE(wxApp, wxEvtHandler)
 117       EVT_IDLE(wxApp::OnIdle)
 118       EVT_END_SESSION(wxApp::OnEndSession)
 119       EVT_QUERY_END_SESSION(wxApp::OnQueryEndSession)
 120   END_EVENT_TABLE()
 121 #endif
 122
 123 long wxApp::sm_lastMessageTime = 0;
 124
 125 #ifdef __WIN95__
 126   static HINSTANCE gs_hRichEdit = NULL;
 127 #endif
 128
 129 //// Initialize
 130
 131 bool wxApp::Initialize()
 132 {
 133     // Some people may wish to use this, but
 134     // probably it shouldn't be here by default.
 135 #ifdef __WXDEBUG__
 136 //    wxRedirectIOToConsole();
 137 #endif
 138
 139     wxBuffer = new char[1500];
 140
 141 #ifdef wxUSE_VC_CRTDBG
 142     // do check for memory leaks on program exit
 143     // (another useful flag is _CRTDBG_DELAY_FREE_MEM_DF which doesn't free
 144     //  deallocated memory which may be used to simulate low-memory condition)
 145     _CrtSetDbgFlag(_CrtSetDbgFlag(_CRTDBG_REPORT_FLAG) | _CRTDBG_LEAK_CHECK_DF);
 146 #endif // debug build under MS VC++
 147
 148     wxClassInfo::InitializeClasses();
 149
 150 #if wxUSE_RESOURCES
 151     wxGetResource("wxWindows", "OsVersion", &wxOsVersion);
 152 #endif
 153
 154     wxTheColourDatabase = new wxColourDatabase(wxKEY_STRING);
 155     wxTheColourDatabase->Initialize();
 156
 157     wxInitializeStockLists();
 158     wxInitializeStockObjects();
 159
 160 #if wxUSE_WX_RESOURCES
 161     wxInitializeResourceSystem();
 162 #endif
 163
 164     wxBitmap::InitStandardHandlers();
 165
 166 #if defined(__WIN95__)
 167     InitCommonControls();
 168     gs_hRichEdit = LoadLibrary("RICHED32.DLL");
 169
 170     if (gs_hRichEdit == NULL)
 171     {
 172       wxMessageBox("Could not initialise Rich Edit DLL");
 173     }
 174 #endif
 175
 176     int iMsg = 96;
 177
 178    // for OLE, enlarge message queue to be as large as possible
 179    while (!SetMessageQueue(iMsg) && (iMsg -= 8));
 180
 181 /*
 182     DWORD dwOleVer;
 183     dwOleVer = CoBuildVersion();
 184
 185     // check the OLE library version
 186     if (rmm != HIWORD(dwOleVer))
 187     {
 188         wxMessageBox("Incorrect version of OLE libraries.");
 189         return FALSE;
 190     }
 191 */
 192
 193 #ifndef __GNUWIN32__
 194     // we need to initialize OLE library
 195     if ( FAILED(::OleInitialize(NULL)) )
 196       wxFatalError(_("Cannot initialize OLE"));
 197 #endif
 198
 199 #if CTL3D
 200     if (!Ctl3dRegister(wxhInstance))
 201       wxFatalError("Cannot register CTL3D");
 202
 203     Ctl3dAutoSubclass(wxhInstance);
 204 #endif
 205
 206     g_globalCursor = new wxCursor;
 207
 208     wxSTD_FRAME_ICON = LoadIcon(wxhInstance, "wxSTD_FRAME");
 209     wxSTD_MDIPARENTFRAME_ICON = LoadIcon(wxhInstance, "wxSTD_MDIPARENTFRAME");
 210     wxSTD_MDICHILDFRAME_ICON = LoadIcon(wxhInstance, "wxSTD_MDICHILDFRAME");
 211
 212     wxDEFAULT_FRAME_ICON = LoadIcon(wxhInstance, "wxDEFAULT_FRAME");
 213     wxDEFAULT_MDIPARENTFRAME_ICON = LoadIcon(wxhInstance, "wxDEFAULT_MDIPARENTFRAME");
 214     wxDEFAULT_MDICHILDFRAME_ICON = LoadIcon(wxhInstance, "wxDEFAULT_MDICHILDFRAME");
 215
 216     RegisterWindowClasses();
 217
 218     // Create the brush for disabling bitmap buttons
 219
 220     LOGBRUSH lb ;
 221     lb.lbStyle = BS_PATTERN;
 222     lb.lbHatch = (int)LoadBitmap( wxhInstance, "wxDISABLE_BUTTON_BITMAP" ) ;
 223     wxDisableButtonBrush = ::CreateBrushIndirect( & lb ) ;
 224     ::DeleteObject( (HGDIOBJ)lb.lbHatch ) ;
 225
 226 #if wxUSE_PENWINDOWS
 227     wxRegisterPenWin();
 228 #endif
 229
 230     wxWinHandleList = new wxList(wxKEY_INTEGER);
 231
 232     // This is to foil optimizations in Visual C++ that
 233     // throw out dummy.obj.
 234 #if (_MSC_VER >= 800) && !defined(WXMAKINGDLL)
 235     extern char wxDummyChar;
 236     if (wxDummyChar) wxDummyChar++;
 237 #endif
 238
 239     wxSetKeyboardHook(TRUE);
 240
 241     wxModule::RegisterModules();
 242     if (!wxModule::InitializeModules())
 243         return FALSE;
 244     return TRUE;
 245 }
 246
 247 //// RegisterWindowClasses
 248
 249 bool wxApp::RegisterWindowClasses()
 250 {
 251 ///////////////////////////////////////////////////////////////////////
 252 // Register the frame window class.
 253   WNDCLASS wndclass;   // Structure used to register Windows class.
 254
 255   wndclass.style         = CS_HREDRAW | CS_VREDRAW;
 256   wndclass.lpfnWndProc   = (WNDPROC)wxWndProc;
 257   wndclass.cbClsExtra    = 0;
 258   wndclass.cbWndExtra    = sizeof( DWORD ); // was 4
 259   wndclass.hInstance     = wxhInstance;
 260   wndclass.hIcon         = NULL;        // wxSTD_FRAME_ICON;
 261   wndclass.hCursor       = LoadCursor( NULL, IDC_ARROW );
 262   wndclass.hbrBackground =  (HBRUSH)(COLOR_APPWORKSPACE+1) ;
 263 //  wndclass.hbrBackground = GetStockObject( WHITE_BRUSH );
 264   wndclass.lpszMenuName  = NULL;
 265 #ifdef _MULTIPLE_INSTANCES
 266   sprintf( wxFrameClassName,"wxFrameClass%d", wxhInstance );
 267 #endif
 268   wndclass.lpszClassName = wxFrameClassName;
 269
 270   if (!RegisterClass( &wndclass ))
 271   {
 272     // wxFatalError("Can't register Frame Window class");
 273   }
 274
 275 ///////////////////////////////////////////////////////////////////////
 276 // Register the MDI frame window class.
 277   WNDCLASS wndclass1;   // Structure used to register Windows class.
 278
 279   wndclass1.style         = CS_HREDRAW | CS_VREDRAW;
 280   wndclass1.lpfnWndProc   = (WNDPROC)wxWndProc;
 281   wndclass1.cbClsExtra    = 0;
 282   wndclass1.cbWndExtra    = sizeof( DWORD ); // was 4
 283   wndclass1.hInstance     = wxhInstance;
 284   wndclass1.hIcon         = NULL; // wxSTD_MDIPARENTFRAME_ICON;
 285   wndclass1.hCursor       = LoadCursor( NULL, IDC_ARROW );
 286 //  wndclass1.hbrBackground =  (HBRUSH)(COLOR_APPWORKSPACE+1) ;
 287   wndclass1.hbrBackground = NULL;
 288   wndclass1.lpszMenuName  = NULL;
 289
 290   wndclass1.lpszClassName = wxMDIFrameClassName;
 291   if (!RegisterClass( &wndclass1 ))
 292   {
 293 //    wxFatalError("Can't register MDI Frame window class");
 294 //  return FALSE;
 295   }
 296
 297 ///////////////////////////////////////////////////////////////////////
 298 // Register the MDI child frame window class.
 299   WNDCLASS wndclass4;   // Structure used to register Windows class.
 300
 301   wndclass4.style         = CS_HREDRAW | CS_VREDRAW;
 302   wndclass4.lpfnWndProc   = (WNDPROC)wxWndProc;
 303   wndclass4.cbClsExtra    = 0;
 304   wndclass4.cbWndExtra    = sizeof( DWORD ); // was 4
 305   wndclass4.hInstance     = wxhInstance;
 306   wndclass4.hIcon         = NULL;       // wxSTD_MDICHILDFRAME_ICON;
 307   wndclass4.hCursor       = LoadCursor( NULL, IDC_ARROW );
 308   // TODO: perhaps this should be NULL so that Windows doesn't
 309   // paint the background itself (would OnEraseBackground duplicate
 310   // this?)
 311   wndclass4.hbrBackground =  (HBRUSH)(COLOR_WINDOW+1) ;
 312 //  wndclass4.hbrBackground = NULL;
 313   wndclass4.lpszMenuName  = NULL;
 314   wndclass4.lpszClassName = wxMDIChildFrameClassName;
 315
 316   if (!RegisterClass( &wndclass4 ))
 317   {
 318 //   wxFatalError("Can't register MDI child frame window class");
 319 //   return FALSE;
 320   }
 321
 322 ///////////////////////////////////////////////////////////////////////
 323 // Register the panel window class.
 324   WNDCLASS wndclass2;   // Structure used to register Windows class.
 325   memset(&wndclass2, 0, sizeof(WNDCLASS));   // start with NULL defaults
 326   // Use CS_OWNDC to avoid messing about restoring the context
 327   // for every graphic operation.
 328   wndclass2.style         = CS_HREDRAW | CS_VREDRAW;
 329   wndclass2.lpfnWndProc   = (WNDPROC)wxWndProc;
 330   wndclass2.cbClsExtra    = 0;
 331   wndclass2.cbWndExtra    = sizeof( DWORD ); // was 4
 332   wndclass2.hInstance     = wxhInstance;
 333   wndclass2.hIcon         = NULL;
 334   wndclass2.hCursor       = NULL;
 335 //  wndclass2.hbrBackground = (HBRUSH)(COLOR_BTNFACE+1) ;
 336   wndclass2.hbrBackground = (HBRUSH) GetStockObject( LTGRAY_BRUSH );
 337   wndclass2.lpszMenuName  = NULL;
 338   wndclass2.lpszClassName = wxPanelClassName;
 339   if (!RegisterClass( &wndclass2 ))
 340   {
 341 //   wxFatalError("Can't register Panel Window class");
 342 //   return FALSE;
 343   }
 344
 345 ///////////////////////////////////////////////////////////////////////
 346 // Register the canvas and textsubwindow class name
 347   WNDCLASS wndclass3;   // Structure used to register Windows class.
 348   memset(&wndclass3, 0, sizeof(WNDCLASS));   // start with NULL defaults
 349   // Use CS_OWNDC to avoid messing about restoring the context
 350   // for every graphic operation.
 351 //  wndclass3.style         = CS_HREDRAW | CS_VREDRAW | CS_OWNDC | CS_DBLCLKS ;
 352   // wxWin 2.0
 353   wndclass3.style         = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS ;
 354   wndclass3.lpfnWndProc   = (WNDPROC)wxWndProc;
 355   wndclass3.cbClsExtra    = 0;
 356   wndclass3.cbWndExtra    = sizeof( DWORD ); // was 4
 357   wndclass3.hInstance     = wxhInstance;
 358   wndclass3.hIcon         = NULL;
 359   wndclass3.hCursor       = NULL;
 360 //  wndclass3.hbrBackground = (HBRUSH)(COLOR_WINDOW+1) ;
 361   wndclass3.hbrBackground = NULL;
 362   wndclass3.lpszMenuName  = NULL;
 363   wndclass3.lpszClassName = wxCanvasClassName;
 364   if (!RegisterClass( &wndclass3))
 365   {
 366 //   wxFatalError("Can't register Canvas class");
 367 //   return FALSE;
 368   }
 369
 370   return TRUE;
 371 }
 372
 373 //// Convert Windows to argc, argv style
 374
 375 void wxApp::ConvertToStandardCommandArgs(char* lpCmdLine)
 376 {
 377     wxStringList args;
 378
 379     wxString cmdLine(lpCmdLine);
 380     int count = 0;
 381
 382     // Get application name
 383     char name[260]; // 260 is MAX_PATH value from windef.h
 384     ::GetModuleFileName(wxhInstance, name, WXSIZEOF(name));
 385
 386     // GNUWIN32 already fills in the first arg with the application name.
 387 #if !defined(__GNUWIN32__)
 388     args.Add(name);
 389     count ++;
 390 #endif
 391
 392     strcpy(name, wxFileNameFromPath(name));
 393     wxStripExtension(name);
 394     wxTheApp->SetAppName(name);
 395
 396     // Break up string
 397     // Treat strings enclosed in double-quotes as single arguments
 398     int i = 0;
 399     int len = cmdLine.Length();
 400     while (i < len)
 401     {
 402         // Skip whitespace
 403         while ((i < len) && isspace(cmdLine.GetChar(i)))
 404             i ++;
 405
 406         if (i < len)
 407         {
 408             if (cmdLine.GetChar(i) == '"') // We found the start of a string
 409             {
 410                 i ++;
 411                 int first = i;
 412                 while ((i < len) && (cmdLine.GetChar(i) != '"'))
 413                     i ++;
 414
 415                 wxString arg(cmdLine.Mid(first, (i - first)));
 416
 417                 args.Add(arg);
 418                 count ++;
 419
 420                 if (i < len)
 421                     i ++; // Skip past 2nd quote
 422             }
 423             else // Unquoted argument
 424             {
 425                 int first = i;
 426                 while ((i < len) && !isspace(cmdLine.GetChar(i)))
 427                     i ++;
 428
 429                 wxString arg(cmdLine.Mid(first, (i - first)));
 430
 431                 args.Add(arg);
 432                 count ++;
 433             }
 434         }
 435     }
 436
 437     wxTheApp->argv = new char*[count + 1];
 438     for (i = 0; i < count; i++)
 439     {
 440         wxString arg(args[i]);
 441         wxTheApp->argv[i] = copystring((const char*)arg);
 442     }
 443     wxTheApp->argv[count] = NULL; // argv[] is a NULL-terminated list
 444     wxTheApp->argc = count;
 445 }
 446
 447 //// Cleans up any wxWindows internal structures left lying around
 448
 449 void wxApp::CleanUp()
 450 {
 451   //// COMMON CLEANUP
 452   wxModule::CleanUpModules();
 453
 454 #if wxUSE_WX_RESOURCES
 455   wxCleanUpResourceSystem();
 456
 457 //  wxDefaultResourceTable->ClearTable();
 458 #endif
 459
 460   // Indicate that the cursor can be freed,
 461   // so that cursor won't be deleted by deleting
 462   // the bitmap list before g_globalCursor goes out
 463   // of scope (double deletion of the cursor).
 464   wxSetCursor(wxNullCursor);
 465   delete g_globalCursor;
 466
 467   wxDeleteStockObjects() ;
 468
 469   // Destroy all GDI lists, etc.
 470   wxDeleteStockLists();
 471
 472   delete wxTheColourDatabase;
 473   wxTheColourDatabase = NULL;
 474
 475   wxBitmap::CleanUpHandlers();
 476
 477   delete[] wxBuffer;
 478   wxBuffer = NULL;
 479
 480   //// WINDOWS-SPECIFIC CLEANUP
 481
 482   wxSetKeyboardHook(FALSE);
 483
 484 #ifdef __WIN95__
 485   if (gs_hRichEdit != NULL)
 486     FreeLibrary(gs_hRichEdit);
 487 #endif
 488
 489 #if wxUSE_PENWINDOWS
 490   wxCleanUpPenWin();
 491 #endif
 492
 493   if (wxSTD_FRAME_ICON)
 494     DestroyIcon(wxSTD_FRAME_ICON);
 495   if (wxSTD_MDICHILDFRAME_ICON)
 496     DestroyIcon(wxSTD_MDICHILDFRAME_ICON);
 497   if (wxSTD_MDIPARENTFRAME_ICON)
 498     DestroyIcon(wxSTD_MDIPARENTFRAME_ICON);
 499
 500   if (wxDEFAULT_FRAME_ICON)
 501     DestroyIcon(wxDEFAULT_FRAME_ICON);
 502   if (wxDEFAULT_MDICHILDFRAME_ICON)
 503     DestroyIcon(wxDEFAULT_MDICHILDFRAME_ICON);
 504   if (wxDEFAULT_MDIPARENTFRAME_ICON)
 505     DestroyIcon(wxDEFAULT_MDIPARENTFRAME_ICON);
 506
 507   if ( wxDisableButtonBrush )
 508     ::DeleteObject( wxDisableButtonBrush ) ;
 509
 510 #ifndef __GNUWIN32__
 511   ::OleUninitialize();
 512 #endif
 513
 514 #if CTL3D
 515   Ctl3dUnregister(wxhInstance);
 516 #endif
 517
 518   if (wxWinHandleList)
 519     delete wxWinHandleList ;
 520
 521   wxClassInfo::CleanUpClasses();
 522
 523   delete wxTheApp;
 524   wxTheApp = NULL;
 525
 526 #if (defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT
 527   // At this point we want to check if there are any memory
 528   // blocks that aren't part of the wxDebugContext itself,
 529   // as a special case. Then when dumping we need to ignore
 530   // wxDebugContext, too.
 531   if (wxDebugContext::CountObjectsLeft() > 0)
 532   {
 533       wxLogDebug("There were memory leaks.");
 534       wxDebugContext::Dump();
 535       wxDebugContext::PrintStatistics();
 536   }
 537 //  wxDebugContext::SetStream(NULL, NULL);
 538 #endif
 539
 540   // do it as the very last thing because everything else can log messages
 541   wxLog::DontCreateOnDemand();
 542   delete wxLog::SetActiveTarget(NULL);
 543 }
 544
 545 #if !defined(_WINDLL) || (defined(_WINDLL) && defined(WXMAKINGDLL))
 546
 547 //// Main wxWindows entry point
 548 int wxEntry(WXHINSTANCE hInstance,
 549             WXHINSTANCE WXUNUSED(hPrevInstance),
 550             char *lpCmdLine,
 551             int nCmdShow,
 552             bool enterLoop)
 553 {
 554 #ifndef __WXDEBUG__ // take everything into a try-except block in release build
 555   try {
 556 #endif
 557
 558   wxhInstance = (HINSTANCE) hInstance;
 559
 560   if (!wxApp::Initialize())
 561     return 0;
 562
 563   // create the application object or ensure that one already exists
 564   if (!wxTheApp)
 565   {
 566     // The app may have declared a global application object, but we recommend
 567     // the IMPLEMENT_APP macro is used instead, which sets an initializer
 568     // function for delayed, dynamic app object construction.
 569     wxCHECK_MSG( wxApp::GetInitializerFunction(), 0,
 570                  "No initializer - use IMPLEMENT_APP macro." );
 571
 572     wxTheApp = (*wxApp::GetInitializerFunction()) ();
 573   }
 574
 575   wxCHECK_MSG( wxTheApp, 0, "You have to define an instance of wxApp!" );
 576
 577   // save the WinMain() parameters
 578   wxTheApp->ConvertToStandardCommandArgs(lpCmdLine);
 579   wxTheApp->m_nCmdShow = nCmdShow;
 580
 581   // GUI-specific initialisation. In fact on Windows we don't have any,
 582   // but this call is provided for compatibility across platforms.
 583   wxTheApp->OnInitGui() ;
 584
 585   int retValue = 0;
 586
 587   if ( wxTheApp->OnInit() )
 588   {
 589       if ( enterLoop )
 590       {
 591           retValue = wxTheApp->OnRun();
 592       }
 593   }
 594   //else: app initialization failed, so we skipped OnRun()
 595
 596   wxWindow *topWindow = wxTheApp->GetTopWindow();
 597   if ( topWindow )
 598   {
 599       // Forcibly delete the window.
 600       if ( topWindow->IsKindOf(CLASSINFO(wxFrame)) ||
 601            topWindow->IsKindOf(CLASSINFO(wxDialog)) )
 602       {
 603           topWindow->Close(TRUE);
 604           wxTheApp->DeletePendingObjects();
 605       }
 606       else
 607       {
 608           delete topWindow;
 609           wxTheApp->SetTopWindow(NULL);
 610       }
 611   }
 612
 613   wxTheApp->OnExit();
 614
 615   // flush the logged messages if any
 616   wxLog *pLog = wxLog::GetActiveTarget();
 617   if ( pLog != NULL && pLog->HasPendingMessages() )
 618     pLog->Flush();
 619
 620
 621   wxApp::CleanUp();
 622
 623   return retValue;
 624 #ifndef __WXDEBUG__ // catch exceptions only in release build
 625   }
 626   except ( EXCEPTION_EXECUTE_HANDLER ) {
 627     /*
 628     if ( wxTheApp )
 629       wxTheApp->OnFatalException();
 630     */
 631
 632     ::ExitProcess(3); // the same exit code as abort()
 633   }
 634 #endif //debug
 635 }
 636
 637 #else /*  _WINDLL  */
 638
 639 //// Entry point for DLLs
 640
 641 int wxEntry(WXHINSTANCE hInstance)
 642 {
 643   wxhInstance = (HINSTANCE) hInstance;
 644   wxApp::Initialize();
 645
 646   // The app may have declared a global application object, but we recommend
 647   // the IMPLEMENT_APP macro is used instead, which sets an initializer function
 648   // for delayed, dynamic app object construction.
 649
 650   if (!wxTheApp)
 651   {
 652     if (!wxApp::GetInitializerFunction())
 653     {
 654       MessageBox(NULL, "No initializer - use IMPLEMENT_APP macro.", "wxWindows Error", MB_APPLMODAL | MB_ICONSTOP | MB_OK);
 655     return 0;
 656     }
 657
 658     wxTheApp = (* wxApp::GetInitializerFunction()) ();
 659   }
 660
 661   if (!wxTheApp) {
 662     MessageBox(NULL, "You have to define an instance of wxApp!", "wxWindows Error", MB_APPLMODAL | MB_ICONSTOP | MB_OK);
 663     return 0;
 664   }
 665
 666   wxTheApp->argc = 0;
 667   wxTheApp->argv = NULL;
 668
 669   wxTheApp->OnInitGui();
 670
 671   wxTheApp->OnInit();
 672
 673   if (wxTheApp->GetTopWindow() && wxTheApp->GetTopWindow()->GetHWND()) {
 674     wxTheApp->GetTopWindow()->Show(TRUE);
 675   }
 676
 677   return 1;
 678 }
 679 #endif // _WINDLL
 680
 681 //// Static member initialization
 682
 683 wxAppInitializerFunction wxApp::m_appInitFn = (wxAppInitializerFunction) NULL;
 684
 685 wxApp::wxApp()
 686 {
 687   m_topWindow = NULL;
 688   wxTheApp = this;
 689   m_className = "";
 690   m_wantDebugOutput = TRUE ;
 691   m_appName = "";
 692   argc = 0;
 693   argv = NULL;
 694 #ifdef __WXMSW__
 695   m_printMode = wxPRINT_WINDOWS;
 696 #else
 697   m_printMode = wxPRINT_POSTSCRIPT;
 698 #endif
 699   m_exitOnFrameDelete = TRUE;
 700   m_auto3D = TRUE;
 701 }
 702
 703 wxApp::~wxApp()
 704 {
 705   // Delete command-line args
 706   int i;
 707   for (i = 0; i < argc; i++)
 708   {
 709     delete[] argv[i];
 710   }
 711   delete[] argv;
 712 }
 713
 714 bool wxApp::Initialized()
 715 {
 716 #ifndef _WINDLL
 717   if (GetTopWindow())
 718     return TRUE;
 719   else
 720     return FALSE;
 721 #endif
 722 #ifdef _WINDLL // Assume initialized if DLL (no way of telling)
 723   return TRUE;
 724 #endif
 725 }
 726
 727 /*
 728  * Get and process a message, returning FALSE if WM_QUIT
 729  * received.
 730  *
 731  */
 732 bool wxApp::DoMessage()
 733 {
 734   if (!::GetMessage(&s_currentMsg, (HWND) NULL, 0, 0))
 735   {
 736     return FALSE;
 737   }
 738
 739   // Process the message
 740   if (!ProcessMessage((WXMSG *)&s_currentMsg))
 741   {
 742     ::TranslateMessage(&s_currentMsg);
 743     wxApp::sm_lastMessageTime = s_currentMsg.time; /* MATTHEW: timeStamp impl. */
 744     ::DispatchMessage(&s_currentMsg);
 745   }
 746   return TRUE;
 747 }
 748
 749 /*
 750  * Keep trying to process messages until WM_QUIT
 751  * received.
 752  *
 753  * If there are messages to be processed, they will all be
 754  * processed and OnIdle will not be called.
 755  * When there are no more messages, OnIdle is called.
 756  * If OnIdle requests more time,
 757  * it will be repeatedly called so long as there are no pending messages.
 758  * A 'feature' of this is that once OnIdle has decided that no more processing
 759  * is required, then it won't get processing time until further messages
 760  * are processed (it'll sit in DoMessage).
 761  */
 762
 763 int wxApp::MainLoop()
 764 {
 765   m_keepGoing = TRUE;
 766   while (m_keepGoing)
 767   {
 768     while (!::PeekMessage(&s_currentMsg, 0, 0, 0, PM_NOREMOVE) &&
 769            ProcessIdle()) {}
 770     if (!DoMessage())
 771       m_keepGoing = FALSE;
 772   }
 773
 774   return s_currentMsg.wParam;
 775 }
 776
 777 // Returns TRUE if more time is needed.
 778 bool wxApp::ProcessIdle()
 779 {
 780     wxIdleEvent event;
 781     event.SetEventObject(this);
 782     ProcessEvent(event);
 783
 784     return event.MoreRequested();
 785 }
 786
 787 void wxApp::ExitMainLoop()
 788 {
 789   m_keepGoing = FALSE;
 790 }
 791
 792 bool wxApp::Pending()
 793 {
 794   return (::PeekMessage(&s_currentMsg, 0, 0, 0, PM_NOREMOVE) != 0) ;
 795 }
 796
 797 void wxApp::Dispatch()
 798 {
 799     if (!DoMessage())
 800       m_keepGoing = FALSE;
 801 }
 802
 803 /*
 804  * Give all windows a chance to preprocess
 805  * the message. Some may have accelerator tables, or have
 806  * MDI complications.
 807  */
 808 bool wxApp::ProcessMessage(WXMSG *Msg)
 809 {
 810   MSG *msg = (MSG *)Msg;
 811
 812   HWND hWnd;
 813
 814   // Try translations first; find the youngest window with
 815   // a translation table.
 816   for (hWnd = msg->hwnd; hWnd != NULL; hWnd = ::GetParent(hWnd))
 817   {
 818     wxWindow *wnd = wxFindWinFromHandle((WXHWND) hWnd);
 819     if (wnd)
 820     {
 821        if (wnd->MSWTranslateMessage(Msg))
 822          return TRUE;
 823     }
 824   }
 825
 826   // Anyone for a non-translation message? Try youngest descendants first.
 827   for (hWnd = msg->hwnd; hWnd != NULL; hWnd = ::GetParent(hWnd))
 828   {
 829     wxWindow *wnd = wxFindWinFromHandle((WXHWND) hWnd);
 830     if (wnd)
 831     {
 832        if (wnd->MSWProcessMessage(Msg))
 833          return TRUE;
 834     }
 835   }
 836   return FALSE;
 837 }
 838
 839 void wxApp::OnIdle(wxIdleEvent& event)
 840 {
 841   static bool inOnIdle = FALSE;
 842
 843   // Avoid recursion (via ProcessEvent default case)
 844   if (inOnIdle)
 845     return;
 846
 847   inOnIdle = TRUE;
 848
 849   // 'Garbage' collection of windows deleted with Close().
 850   DeletePendingObjects();
 851
 852   // flush the logged messages if any
 853   wxLog *pLog = wxLog::GetActiveTarget();
 854   if ( pLog != NULL && pLog->HasPendingMessages() )
 855     pLog->Flush();
 856
 857   // Send OnIdle events to all windows
 858   bool needMore = SendIdleEvents();
 859 //  bool needMore = FALSE;
 860
 861   if (needMore)
 862     event.RequestMore(TRUE);
 863
 864   inOnIdle = FALSE;
 865 }
 866
 867 // Send idle event to all top-level windows
 868 bool wxApp::SendIdleEvents()
 869 {
 870     bool needMore = FALSE;
 871   wxNode* node = wxTopLevelWindows.First();
 872   while (node)
 873   {
 874     wxWindow* win = (wxWindow*) node->Data();
 875     if (SendIdleEvents(win))
 876             needMore = TRUE;
 877
 878     node = node->Next();
 879   }
 880     return needMore;
 881 }
 882
 883 // Send idle event to window and all subwindows
 884 bool wxApp::SendIdleEvents(wxWindow* win)
 885 {
 886   bool needMore = FALSE;
 887
 888   wxIdleEvent event;
 889   event.SetEventObject(win);
 890   win->GetEventHandler()->ProcessEvent(event);
 891
 892   if (event.MoreRequested())
 893     needMore = TRUE;
 894
 895   wxNode* node = win->GetChildren().First();
 896   while (node)
 897   {
 898     wxWindow* win = (wxWindow*) node->Data();
 899     if (SendIdleEvents(win))
 900       needMore = TRUE;
 901
 902     node = node->Next();
 903   }
 904   return needMore ;
 905 }
 906
 907 void wxApp::DeletePendingObjects()
 908 {
 909   wxNode *node = wxPendingDelete.First();
 910   while (node)
 911   {
 912     wxObject *obj = (wxObject *)node->Data();
 913
 914     delete obj;
 915
 916     if (wxPendingDelete.Member(obj))
 917       delete node;
 918
 919     // Deleting one object may have deleted other pending
 920     // objects, so start from beginning of list again.
 921     node = wxPendingDelete.First();
 922   }
 923 }
 924
 925 void wxApp::OnEndSession(wxCloseEvent& event)
 926 {
 927     if (GetTopWindow())
 928         GetTopWindow()->Close(TRUE);
 929 }
 930
 931 // Default behaviour: close the application with prompts. The
 932 // user can veto the close, and therefore the end session.
 933 void wxApp::OnQueryEndSession(wxCloseEvent& event)
 934 {
 935     if (GetTopWindow())
 936     {
 937         if (!GetTopWindow()->Close(!event.CanVeto()))
 938             event.Veto(TRUE);
 939     }
 940 }
 941
 942 wxLog* wxApp::CreateLogTarget()
 943 {
 944     return new wxLogGui;
 945 }
 946
 947 wxWindow* wxApp::GetTopWindow() const
 948 {
 949     if (m_topWindow)
 950         return m_topWindow;
 951     else if (wxTopLevelWindows.Number() > 0)
 952         return (wxWindow*) wxTopLevelWindows.First()->Data();
 953     else
 954         return NULL;
 955 }
 956
 957 int wxApp::GetComCtl32Version() const
 958 {
 959     // have we loaded COMCTL32 yet?
 960     HMODULE theModule = ::GetModuleHandle("COMCTL32");
 961     int version = 0;
 962
 963     // if so, then we can check for the version
 964     if (theModule)
 965     {
 966         // InitCommonControlsEx is unique to 4.7 and later
 967         FARPROC theProc = ::GetProcAddress(theModule, "InitCommonControlsEx");
 968
 969         if (! theProc)
 970         {                    // not found, must be 4.00
 971       version = 400;
 972         }
 973         else
 974         {
 975       // The following symbol are unique to 4.71
 976       //   DllInstall
 977       //   FlatSB_EnableScrollBar FlatSB_GetScrollInfo FlatSB_GetScrollPos
 978       //   FlatSB_GetScrollProp FlatSB_GetScrollRange FlatSB_SetScrollInfo
 979       //   FlatSB_SetScrollPos FlatSB_SetScrollProp FlatSB_SetScrollRange
 980       //   FlatSB_ShowScrollBar
 981       //   _DrawIndirectImageList _DuplicateImageList
 982       //   InitializeFlatSB
 983       //   UninitializeFlatSB
 984       // we could check for any of these - I chose DllInstall
 985       FARPROC theProc = ::GetProcAddress(theModule, "DllInstall");
 986       if (! theProc)
 987       {
 988         // not found, must be 4.70
 989         version = 470;
 990       }
 991       else
 992       {                         // found, must be 4.71
 993         version = 471;
 994       }
 995         }
 996     }
 997     return version;
 998 }
 999
1000 void wxExit()
1001 {
1002   wxApp::CleanUp();
1003   FatalAppExit(0, "Fatal error: exiting");
1004 }
1005
1006 // Yield to incoming messages
1007 bool wxYield()
1008 {
1009   MSG msg;
1010   // We want to go back to the main message loop
1011   // if we see a WM_QUIT. (?)
1012   while (PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE) && msg.message != WM_QUIT)
1013   {
1014     if (!wxTheApp->DoMessage())
1015       break;
1016   }
1017
1018   return TRUE;
1019 }
1020
1021 HINSTANCE wxGetInstance()
1022 {
1023   return wxhInstance;
1024 }
1025
1026 // For some reason, with MSVC++ 1.5, WinMain isn't linked in properly
1027 // if in a separate file. So include it here to ensure it's linked.
1028 #if (defined(_MSC_VER) && !defined(__WIN32__)) || defined(__GNUWIN32__)
1029   #include "main.cpp"
1030 #endif