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