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