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   #include "wx/intl.h"
  37   #include "wx/dynarray.h"
  38 #endif
  39
  40 #include "wx/msw/private.h"
  41 #include "wx/log.h"
  42 #include "wx/module.h"
  43
  44 #if wxUSE_THREADS
  45     #include "wx/thread.h"
  46
  47     // define the array of MSG strutures
  48     WX_DECLARE_OBJARRAY(MSG, wxMsgArray);
  49
  50     #include "wx/arrimpl.cpp"
  51
  52     WX_DEFINE_OBJARRAY(wxMsgArray);
  53 #endif // wxUSE_THREADS
  54
  55 #if wxUSE_WX_RESOURCES
  56   #include "wx/resource.h"
  57 #endif
  58
  59 // To UG: there's no point in putting this #if here
  60 // if you don't do the same for the Ole calls further down.
  61 // Also, OLE is used not just for drag and drop (it's used by automatn.cpp).
  62 // #if wxUSE_DRAG_AND_DROP
  63 #if !defined(__GNUWIN32__) && !defined(__SC__) && !defined(__SALFORDC__)
  64     #include <ole2.h>
  65 #endif
  66
  67 #include <string.h>
  68 #include <ctype.h>
  69
  70 #if (defined(__WIN95__) && !defined(__GNUWIN32__)) || defined(__TWIN32__)
  71   #include <commctrl.h>
  72 #endif
  73
  74 #include "wx/msw/msvcrt.h"
  75
  76 extern char *wxBuffer;
  77 extern char *wxOsVersion;
  78 extern wxList *wxWinHandleList;
  79 extern wxList WXDLLEXPORT wxPendingDelete;
  80 extern void wxSetKeyboardHook(bool doIt);
  81 extern wxCursor *g_globalCursor;
  82
  83 HINSTANCE wxhInstance = 0;
  84 static MSG s_currentMsg;
  85 wxApp *wxTheApp = NULL;
  86
  87 // @@ why not const? and not static?
  88 char wxFrameClassName[]         = "wxFrameClass";
  89 char wxMDIFrameClassName[]      = "wxMDIFrameClass";
  90 char wxMDIChildFrameClassName[] = "wxMDIChildFrameClass";
  91 char wxPanelClassName[]         = "wxPanelClass";
  92 char wxCanvasClassName[]        = "wxCanvasClass";
  93
  94 HICON wxSTD_FRAME_ICON = (HICON) NULL;
  95 HICON wxSTD_MDICHILDFRAME_ICON = (HICON) NULL;
  96 HICON wxSTD_MDIPARENTFRAME_ICON = (HICON) NULL;
  97
  98 HICON wxDEFAULT_FRAME_ICON = (HICON) NULL;
  99 HICON wxDEFAULT_MDICHILDFRAME_ICON = (HICON) NULL;
 100 HICON wxDEFAULT_MDIPARENTFRAME_ICON = (HICON) NULL;
 101
 102 HBRUSH wxDisableButtonBrush = (HBRUSH) 0;
 103
 104 LRESULT APIENTRY wxWndProc(HWND, UINT, WPARAM, LPARAM);
 105
 106 #if !USE_SHARED_LIBRARY
 107   IMPLEMENT_DYNAMIC_CLASS(wxApp, wxEvtHandler)
 108
 109   BEGIN_EVENT_TABLE(wxApp, wxEvtHandler)
 110       EVT_IDLE(wxApp::OnIdle)
 111       EVT_END_SESSION(wxApp::OnEndSession)
 112       EVT_QUERY_END_SESSION(wxApp::OnQueryEndSession)
 113   END_EVENT_TABLE()
 114 #endif
 115
 116 long wxApp::sm_lastMessageTime = 0;
 117
 118 #if defined(__WIN95__) && !defined(__TWIN32__)
 119 #define wxUSE_RICHEDIT 1
 120 #else
 121 #define wxUSE_RICHEDIT 0
 122 #endif
 123
 124 #if wxUSE_RICHEDIT
 125   static HINSTANCE gs_hRichEdit = (HINSTANCE) NULL;
 126 #endif
 127
 128 //// Initialize
 129
 130 bool wxApp::Initialize()
 131 {
 132     // Some people may wish to use this, but
 133     // probably it shouldn't be here by default.
 134 #ifdef __WXDEBUG__
 135 //    wxRedirectIOToConsole();
 136 #endif
 137
 138     wxBuffer = new char[1500];
 139
 140     wxClassInfo::InitializeClasses();
 141
 142 #if wxUSE_RESOURCES
 143     wxGetResource("wxWindows", "OsVersion", &wxOsVersion);
 144 #endif
 145
 146     wxTheColourDatabase = new wxColourDatabase(wxKEY_STRING);
 147     wxTheColourDatabase->Initialize();
 148
 149     wxInitializeStockLists();
 150     wxInitializeStockObjects();
 151
 152 #if wxUSE_WX_RESOURCES
 153     wxInitializeResourceSystem();
 154 #endif
 155
 156     wxBitmap::InitStandardHandlers();
 157
 158 #if defined(__WIN95__)
 159     InitCommonControls();
 160
 161 #if wxUSE_RICHEDIT
 162     gs_hRichEdit = LoadLibrary("RICHED32.DLL");
 163
 164     if (gs_hRichEdit == (HINSTANCE) NULL)
 165     {
 166       wxMessageBox("Could not initialise Rich Edit DLL");
 167     }
 168 #endif
 169
 170 #endif
 171
 172     int iMsg = 96;
 173
 174    // for OLE, enlarge message queue to be as large as possible
 175    while (!SetMessageQueue(iMsg) && (iMsg -= 8));
 176
 177 /*
 178     DWORD dwOleVer;
 179     dwOleVer = CoBuildVersion();
 180
 181     // check the OLE library version
 182     if (rmm != HIWORD(dwOleVer))
 183     {
 184         wxMessageBox("Incorrect version of OLE libraries.");
 185         return FALSE;
 186     }
 187 */
 188
 189 #if !defined(__GNUWIN32__) && !defined(__SC__) && !defined(__SALFORDC__)
 190     // we need to initialize OLE library
 191     if ( FAILED(::OleInitialize(NULL)) )
 192       wxFatalError(_("Cannot initialize OLE"));
 193 #endif
 194
 195 #if wxUSE_CTL3D
 196     if (!Ctl3dRegister(wxhInstance))
 197       wxFatalError("Cannot register CTL3D");
 198
 199     Ctl3dAutoSubclass(wxhInstance);
 200 #endif
 201
 202     g_globalCursor = new wxCursor;
 203
 204     wxSTD_FRAME_ICON = LoadIcon(wxhInstance, "wxSTD_FRAME");
 205     wxSTD_MDIPARENTFRAME_ICON = LoadIcon(wxhInstance, "wxSTD_MDIPARENTFRAME");
 206     wxSTD_MDICHILDFRAME_ICON = LoadIcon(wxhInstance, "wxSTD_MDICHILDFRAME");
 207
 208     wxDEFAULT_FRAME_ICON = LoadIcon(wxhInstance, "wxDEFAULT_FRAME");
 209     wxDEFAULT_MDIPARENTFRAME_ICON = LoadIcon(wxhInstance, "wxDEFAULT_MDIPARENTFRAME");
 210     wxDEFAULT_MDICHILDFRAME_ICON = LoadIcon(wxhInstance, "wxDEFAULT_MDICHILDFRAME");
 211
 212     RegisterWindowClasses();
 213
 214     // Create the brush for disabling bitmap buttons
 215
 216     LOGBRUSH lb ;
 217     lb.lbStyle = BS_PATTERN;
 218     lb.lbHatch = (int)LoadBitmap( wxhInstance, "wxDISABLE_BUTTON_BITMAP" ) ;
 219     wxDisableButtonBrush = ::CreateBrushIndirect( & lb ) ;
 220     ::DeleteObject( (HGDIOBJ)lb.lbHatch ) ;
 221
 222 #if wxUSE_PENWINDOWS
 223     wxRegisterPenWin();
 224 #endif
 225
 226     wxWinHandleList = new wxList(wxKEY_INTEGER);
 227
 228     // This is to foil optimizations in Visual C++ that throw out dummy.obj.
 229     // PLEASE DO NOT ALTER THIS.
 230 #if defined(__VISUALC__) && !defined(WXMAKINGDLL)
 231     extern char wxDummyChar;
 232     if (wxDummyChar) wxDummyChar++;
 233 #endif
 234
 235     wxSetKeyboardHook(TRUE);
 236
 237     wxModule::RegisterModules();
 238     if (!wxModule::InitializeModules())
 239         return FALSE;
 240     return TRUE;
 241 }
 242
 243 //// RegisterWindowClasses
 244
 245 bool wxApp::RegisterWindowClasses()
 246 {
 247 ///////////////////////////////////////////////////////////////////////
 248 // Register the frame window class.
 249   WNDCLASS wndclass;   // Structure used to register Windows class.
 250
 251   wndclass.style         = CS_HREDRAW | CS_VREDRAW;
 252   wndclass.lpfnWndProc   = (WNDPROC)wxWndProc;
 253   wndclass.cbClsExtra    = 0;
 254   wndclass.cbWndExtra    = sizeof( DWORD ); // was 4
 255   wndclass.hInstance     = wxhInstance;
 256   wndclass.hIcon         = (HICON) NULL;        // wxSTD_FRAME_ICON;
 257   wndclass.hCursor       = LoadCursor( (HINSTANCE) NULL, IDC_ARROW );
 258   wndclass.hbrBackground =  (HBRUSH)(COLOR_APPWORKSPACE+1) ;
 259 //  wndclass.hbrBackground = GetStockObject( WHITE_BRUSH );
 260   wndclass.lpszMenuName  = NULL;
 261 #ifdef _MULTIPLE_INSTANCES
 262   sprintf( wxFrameClassName,"wxFrameClass%d", wxhInstance );
 263 #endif
 264   wndclass.lpszClassName = wxFrameClassName;
 265
 266   if (!RegisterClass( &wndclass ))
 267   {
 268     // wxFatalError("Can't register Frame Window class");
 269   }
 270
 271 ///////////////////////////////////////////////////////////////////////
 272 // Register the MDI frame window class.
 273   WNDCLASS wndclass1;   // Structure used to register Windows class.
 274
 275   wndclass1.style         = CS_HREDRAW | CS_VREDRAW;
 276   wndclass1.lpfnWndProc   = (WNDPROC)wxWndProc;
 277   wndclass1.cbClsExtra    = 0;
 278   wndclass1.cbWndExtra    = sizeof( DWORD ); // was 4
 279   wndclass1.hInstance     = wxhInstance;
 280   wndclass1.hIcon         = (HICON) NULL; // wxSTD_MDIPARENTFRAME_ICON;
 281   wndclass1.hCursor       = LoadCursor( (HINSTANCE) NULL, IDC_ARROW );
 282 //  wndclass1.hbrBackground =  (HBRUSH)(COLOR_APPWORKSPACE+1) ;
 283   wndclass1.hbrBackground = (HBRUSH) NULL;
 284   wndclass1.lpszMenuName  = NULL;
 285
 286   wndclass1.lpszClassName = wxMDIFrameClassName;
 287   if (!RegisterClass( &wndclass1 ))
 288   {
 289 //    wxFatalError("Can't register MDI Frame window class");
 290 //  return FALSE;
 291   }
 292
 293 ///////////////////////////////////////////////////////////////////////
 294 // Register the MDI child frame window class.
 295   WNDCLASS wndclass4;   // Structure used to register Windows class.
 296
 297   wndclass4.style         = CS_HREDRAW | CS_VREDRAW;
 298   wndclass4.lpfnWndProc   = (WNDPROC)wxWndProc;
 299   wndclass4.cbClsExtra    = 0;
 300   wndclass4.cbWndExtra    = sizeof( DWORD ); // was 4
 301   wndclass4.hInstance     = wxhInstance;
 302   wndclass4.hIcon         = (HICON) NULL;       // wxSTD_MDICHILDFRAME_ICON;
 303   wndclass4.hCursor       = LoadCursor( (HINSTANCE) NULL, IDC_ARROW );
 304   // TODO: perhaps this should be NULL so that Windows doesn't
 305   // paint the background itself (would OnEraseBackground duplicate
 306   // this?)
 307   wndclass4.hbrBackground =  (HBRUSH)(COLOR_WINDOW+1) ;
 308 //  wndclass4.hbrBackground = NULL;
 309   wndclass4.lpszMenuName  = NULL;
 310   wndclass4.lpszClassName = wxMDIChildFrameClassName;
 311
 312   if (!RegisterClass( &wndclass4 ))
 313   {
 314 //   wxFatalError("Can't register MDI child frame window class");
 315 //   return FALSE;
 316   }
 317
 318 ///////////////////////////////////////////////////////////////////////
 319 // Register the panel window class.
 320   WNDCLASS wndclass2;   // Structure used to register Windows class.
 321   memset(&wndclass2, 0, sizeof(WNDCLASS));   // start with NULL defaults
 322   // Use CS_OWNDC to avoid messing about restoring the context
 323   // for every graphic operation.
 324   wndclass2.style         = CS_HREDRAW | CS_VREDRAW;
 325   wndclass2.lpfnWndProc   = (WNDPROC)wxWndProc;
 326   wndclass2.cbClsExtra    = 0;
 327   wndclass2.cbWndExtra    = sizeof( DWORD ); // was 4
 328   wndclass2.hInstance     = wxhInstance;
 329   wndclass2.hIcon         = (HICON) NULL;
 330   wndclass2.hCursor       = (HCURSOR) NULL;
 331 //  wndclass2.hbrBackground = (HBRUSH)(COLOR_BTNFACE+1) ;
 332   wndclass2.hbrBackground = (HBRUSH) GetStockObject( LTGRAY_BRUSH );
 333   wndclass2.lpszMenuName  = NULL;
 334   wndclass2.lpszClassName = wxPanelClassName;
 335   if (!RegisterClass( &wndclass2 ))
 336   {
 337 //   wxFatalError("Can't register Panel Window class");
 338 //   return FALSE;
 339   }
 340
 341 ///////////////////////////////////////////////////////////////////////
 342 // Register the canvas and textsubwindow class name
 343   WNDCLASS wndclass3;   // Structure used to register Windows class.
 344   memset(&wndclass3, 0, sizeof(WNDCLASS));   // start with NULL defaults
 345   // Use CS_OWNDC to avoid messing about restoring the context
 346   // for every graphic operation.
 347 //  wndclass3.style         = CS_HREDRAW | CS_VREDRAW | CS_OWNDC | CS_DBLCLKS ;
 348   // wxWin 2.0
 349   wndclass3.style         = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS ;
 350   wndclass3.lpfnWndProc   = (WNDPROC)wxWndProc;
 351   wndclass3.cbClsExtra    = 0;
 352   wndclass3.cbWndExtra    = sizeof( DWORD ); // was 4
 353   wndclass3.hInstance     = wxhInstance;
 354   wndclass3.hIcon         = (HICON) NULL;
 355   wndclass3.hCursor       = (HCURSOR) NULL;
 356 //  wndclass3.hbrBackground = (HBRUSH)(COLOR_WINDOW+1) ;
 357   wndclass3.hbrBackground = (HBRUSH) NULL;
 358   wndclass3.lpszMenuName  = NULL;
 359   wndclass3.lpszClassName = wxCanvasClassName;
 360   if (!RegisterClass( &wndclass3))
 361   {
 362 //   wxFatalError("Can't register Canvas class");
 363 //   return FALSE;
 364   }
 365
 366   return TRUE;
 367 }
 368
 369 //// Convert Windows to argc, argv style
 370
 371 void wxApp::ConvertToStandardCommandArgs(char* lpCmdLine)
 372 {
 373     wxStringList args;
 374
 375     wxString cmdLine(lpCmdLine);
 376     int count = 0;
 377
 378     // Get application name
 379     char name[260]; // 260 is MAX_PATH value from windef.h
 380     ::GetModuleFileName(wxhInstance, name, WXSIZEOF(name));
 381
 382     // GNUWIN32 already fills in the first arg with the application name.
 383 #if !defined(__GNUWIN32__)
 384     args.Add(name);
 385     count ++;
 386 #endif
 387
 388     strcpy(name, wxFileNameFromPath(name));
 389     wxStripExtension(name);
 390     wxTheApp->SetAppName(name);
 391
 392     // Break up string
 393     // Treat strings enclosed in double-quotes as single arguments
 394     int i = 0;
 395     int len = cmdLine.Length();
 396     while (i < len)
 397     {
 398         // Skip whitespace
 399         while ((i < len) && isspace(cmdLine.GetChar(i)))
 400             i ++;
 401
 402         if (i < len)
 403         {
 404             if (cmdLine.GetChar(i) == '"') // We found the start of a string
 405             {
 406                 i ++;
 407                 int first = i;
 408                 while ((i < len) && (cmdLine.GetChar(i) != '"'))
 409                     i ++;
 410
 411                 wxString arg(cmdLine.Mid(first, (i - first)));
 412
 413                 args.Add(arg);
 414                 count ++;
 415
 416                 if (i < len)
 417                     i ++; // Skip past 2nd quote
 418             }
 419             else // Unquoted argument
 420             {
 421                 int first = i;
 422                 while ((i < len) && !isspace(cmdLine.GetChar(i)))
 423                     i ++;
 424
 425                 wxString arg(cmdLine.Mid(first, (i - first)));
 426
 427                 args.Add(arg);
 428                 count ++;
 429             }
 430         }
 431     }
 432
 433     wxTheApp->argv = new char*[count + 1];
 434     for (i = 0; i < count; i++)
 435     {
 436         wxString arg(args[i]);
 437         wxTheApp->argv[i] = copystring((const char*)arg);
 438     }
 439     wxTheApp->argv[count] = NULL; // argv[] is a NULL-terminated list
 440     wxTheApp->argc = count;
 441 }
 442
 443 //// Cleans up any wxWindows internal structures left lying around
 444
 445 void wxApp::CleanUp()
 446 {
 447   //// COMMON CLEANUP
 448   wxModule::CleanUpModules();
 449
 450 #if wxUSE_WX_RESOURCES
 451   wxCleanUpResourceSystem();
 452
 453 //  wxDefaultResourceTable->ClearTable();
 454 #endif
 455
 456   // Indicate that the cursor can be freed,
 457   // so that cursor won't be deleted by deleting
 458   // the bitmap list before g_globalCursor goes out
 459   // of scope (double deletion of the cursor).
 460   wxSetCursor(wxNullCursor);
 461   delete g_globalCursor;
 462
 463   wxDeleteStockObjects() ;
 464
 465   // Destroy all GDI lists, etc.
 466   wxDeleteStockLists();
 467
 468   delete wxTheColourDatabase;
 469   wxTheColourDatabase = NULL;
 470
 471   wxBitmap::CleanUpHandlers();
 472
 473   delete[] wxBuffer;
 474   wxBuffer = NULL;
 475
 476   //// WINDOWS-SPECIFIC CLEANUP
 477
 478   wxSetKeyboardHook(FALSE);
 479
 480 #ifdef __WIN95__
 481
 482 #if wxUSE_RICHEDIT
 483   if (gs_hRichEdit != (HINSTANCE) NULL)
 484     FreeLibrary(gs_hRichEdit);
 485 #endif
 486
 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 #if !defined(__GNUWIN32__) && !defined(__SC__) && !defined(__SALFORDC__)
 511   ::OleUninitialize();
 512 #endif
 513
 514 #if wxUSE_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 // temporarily disable this warning
 548 #ifdef __VISUALC__
 549     #pragma warning(disable: 4715) // not all control paths return a value
 550 #endif // Visual C++
 551
 552 //// Main wxWindows entry point
 553 int wxEntry(WXHINSTANCE hInstance,
 554             WXHINSTANCE WXUNUSED(hPrevInstance),
 555             char *lpCmdLine,
 556             int nCmdShow,
 557             bool enterLoop)
 558 {
 559     // do check for memory leaks on program exit
 560     // (another useful flag is _CRTDBG_DELAY_FREE_MEM_DF which doesn't free
 561     //  deallocated memory which may be used to simulate low-memory condition)
 562     wxCrtSetDbgFlag(_CRTDBG_LEAK_CHECK_DF);
 563
 564   // take everything into a try-except block in release build
 565   // FIXME other compilers must support Win32 SEH (structured exception
 566   //       handling) too, just find the appropriate keyword in their docs!
 567   //       Please note that it's _not_ the same as C++ exceptions!
 568 #if !defined(__WXDEBUG__) && defined(__VISUALC__)
 569     #define CATCH_PROGRAM_EXCEPTIONS
 570
 571     __try {
 572 #else
 573     #undef  CATCH_PROGRAM_EXCEPTIONS
 574 #endif
 575
 576   wxhInstance = (HINSTANCE) hInstance;
 577
 578   if (!wxApp::Initialize())
 579     return 0;
 580
 581   // create the application object or ensure that one already exists
 582   if (!wxTheApp)
 583   {
 584     // The app may have declared a global application object, but we recommend
 585     // the IMPLEMENT_APP macro is used instead, which sets an initializer
 586     // function for delayed, dynamic app object construction.
 587     wxCHECK_MSG( wxApp::GetInitializerFunction(), 0,
 588                  "No initializer - use IMPLEMENT_APP macro." );
 589
 590     wxTheApp = (*wxApp::GetInitializerFunction()) ();
 591   }
 592
 593   wxCHECK_MSG( wxTheApp, 0, "You have to define an instance of wxApp!" );
 594
 595   // save the WinMain() parameters
 596   wxTheApp->ConvertToStandardCommandArgs(lpCmdLine);
 597   wxTheApp->m_nCmdShow = nCmdShow;
 598
 599   // GUI-specific initialisation. In fact on Windows we don't have any,
 600   // but this call is provided for compatibility across platforms.
 601   wxTheApp->OnInitGui() ;
 602
 603   int retValue = 0;
 604
 605   if ( wxTheApp->OnInit() )
 606   {
 607       if ( enterLoop )
 608       {
 609           retValue = wxTheApp->OnRun();
 610       }
 611   }
 612   //else: app initialization failed, so we skipped OnRun()
 613
 614   wxWindow *topWindow = wxTheApp->GetTopWindow();
 615   if ( topWindow )
 616   {
 617       // Forcibly delete the window.
 618       if ( topWindow->IsKindOf(CLASSINFO(wxFrame)) ||
 619            topWindow->IsKindOf(CLASSINFO(wxDialog)) )
 620       {
 621           topWindow->Close(TRUE);
 622           wxTheApp->DeletePendingObjects();
 623       }
 624       else
 625       {
 626           delete topWindow;
 627           wxTheApp->SetTopWindow(NULL);
 628       }
 629   }
 630
 631   wxTheApp->OnExit();
 632
 633   // flush the logged messages if any
 634   wxLog *pLog = wxLog::GetActiveTarget();
 635   if ( pLog != NULL && pLog->HasPendingMessages() )
 636     pLog->Flush();
 637
 638
 639   wxApp::CleanUp();
 640
 641   return retValue;
 642
 643 #ifdef CATCH_PROGRAM_EXCEPTIONS
 644   }
 645   __except ( EXCEPTION_EXECUTE_HANDLER ) {
 646     /*
 647     if ( wxTheApp )
 648       wxTheApp->OnFatalException();
 649     */
 650
 651     ::ExitProcess(3); // the same exit code as abort()
 652
 653     // NOTREACHED
 654   }
 655 #endif // CATCH_PROGRAM_EXCEPTIONS
 656 }
 657
 658 // restore warning state
 659 #ifdef __VISUALC__
 660     #pragma warning(default: 4715) // not all control paths return a value
 661 #endif // Visual C++
 662
 663 #else /*  _WINDLL  */
 664
 665 //// Entry point for DLLs
 666
 667 int wxEntry(WXHINSTANCE hInstance)
 668 {
 669   wxhInstance = (HINSTANCE) hInstance;
 670   wxApp::Initialize();
 671
 672   // The app may have declared a global application object, but we recommend
 673   // the IMPLEMENT_APP macro is used instead, which sets an initializer function
 674   // for delayed, dynamic app object construction.
 675
 676   if (!wxTheApp)
 677   {
 678     if (!wxApp::GetInitializerFunction())
 679     {
 680       MessageBox(NULL, "No initializer - use IMPLEMENT_APP macro.", "wxWindows Error", MB_APPLMODAL | MB_ICONSTOP | MB_OK);
 681     return 0;
 682     }
 683
 684     wxTheApp = (* wxApp::GetInitializerFunction()) ();
 685   }
 686
 687   if (!wxTheApp) {
 688     MessageBox(NULL, "You have to define an instance of wxApp!", "wxWindows Error", MB_APPLMODAL | MB_ICONSTOP | MB_OK);
 689     return 0;
 690   }
 691
 692   wxTheApp->argc = 0;
 693   wxTheApp->argv = NULL;
 694
 695   wxTheApp->OnInitGui();
 696
 697   wxTheApp->OnInit();
 698
 699   if (wxTheApp->GetTopWindow() && wxTheApp->GetTopWindow()->GetHWND()) {
 700     wxTheApp->GetTopWindow()->Show(TRUE);
 701   }
 702
 703   return 1;
 704 }
 705 #endif // _WINDLL
 706
 707 //// Static member initialization
 708
 709 wxAppInitializerFunction wxApp::m_appInitFn = (wxAppInitializerFunction) NULL;
 710
 711 wxApp::wxApp()
 712 {
 713   m_topWindow = NULL;
 714   wxTheApp = this;
 715   m_className = "";
 716   m_wantDebugOutput = TRUE ;
 717   m_appName = "";
 718   argc = 0;
 719   argv = NULL;
 720 #ifdef __WXMSW__
 721   m_printMode = wxPRINT_WINDOWS;
 722 #else
 723   m_printMode = wxPRINT_POSTSCRIPT;
 724 #endif
 725   m_exitOnFrameDelete = TRUE;
 726   m_auto3D = TRUE;
 727 }
 728
 729 wxApp::~wxApp()
 730 {
 731   // Delete command-line args
 732   int i;
 733   for (i = 0; i < argc; i++)
 734   {
 735     delete[] argv[i];
 736   }
 737   delete[] argv;
 738 }
 739
 740 bool wxApp::Initialized()
 741 {
 742 #ifndef _WINDLL
 743   if (GetTopWindow())
 744     return TRUE;
 745   else
 746     return FALSE;
 747 #endif
 748 #ifdef _WINDLL // Assume initialized if DLL (no way of telling)
 749   return TRUE;
 750 #endif
 751 }
 752
 753 /*
 754  * Get and process a message, returning FALSE if WM_QUIT
 755  * received (and also set the flag telling the app to exit the main loop)
 756  *
 757  */
 758 bool wxApp::DoMessage()
 759 {
 760     BOOL rc = ::GetMessage(&s_currentMsg, (HWND) NULL, 0, 0);
 761     if ( rc == 0 )
 762     {
 763         // got WM_QUIT
 764         m_keepGoing = FALSE;
 765
 766         return FALSE;
 767     }
 768     else if ( rc == -1 )
 769     {
 770         // should never happen, but let's test for it nevertheless
 771         wxLogLastError("GetMessage");
 772     }
 773     else
 774     {
 775 #if wxUSE_THREADS
 776         wxASSERT_MSG( wxThread::IsMain(),
 777                       "only the main thread can process Windows messages" );
 778
 779         static bool s_hadGuiLock = TRUE;
 780         static wxMsgArray s_aSavedMessages;
 781
 782         // if a secondary thread owns is doing GUI calls, save all messages for
 783         // later processing - we can't process them right now because it will
 784         // lead to recursive library calls (and we're not reentrant)
 785         if ( !wxGuiOwnedByMainThread() )
 786         {
 787             s_hadGuiLock = FALSE;
 788
 789             // leave out WM_COMMAND messages: too dangerous, sometimes
 790             // the message will be processed twice
 791             if ( !wxIsWaitingForThread() ||
 792                  s_currentMsg.message != WM_COMMAND )
 793             {
 794                 s_aSavedMessages.Add(s_currentMsg);
 795             }
 796
 797             return TRUE;
 798         }
 799         else
 800         {
 801             // have we just regained the GUI lock? if so, post all of the saved
 802             // messages
 803             //
 804             // FIXME of course, it's not _exactly_ the same as processing the
 805             //       messages normally - expect some things to break...
 806             if ( !s_hadGuiLock )
 807             {
 808                 s_hadGuiLock = TRUE;
 809
 810                 size_t count = s_aSavedMessages.Count();
 811                 for ( size_t n = 0; n < count; n++ )
 812                 {
 813                     MSG& msg = s_aSavedMessages[n];
 814
 815                     if ( !ProcessMessage((WXMSG *)&msg) )
 816                     {
 817                         ::TranslateMessage(&msg);
 818                         ::DispatchMessage(&msg);
 819                     }
 820                 }
 821
 822                 s_aSavedMessages.Empty();
 823             }
 824         }
 825 #endif // wxUSE_THREADS
 826
 827         // Process the message
 828         if ( !ProcessMessage((WXMSG *)&s_currentMsg) )
 829         {
 830             ::TranslateMessage(&s_currentMsg);
 831             wxApp::sm_lastMessageTime = s_currentMsg.time; /* MATTHEW: timeStamp impl. */
 832             ::DispatchMessage(&s_currentMsg);
 833         }
 834     }
 835
 836     return TRUE;
 837 }
 838
 839 /*
 840  * Keep trying to process messages until WM_QUIT
 841  * received.
 842  *
 843  * If there are messages to be processed, they will all be
 844  * processed and OnIdle will not be called.
 845  * When there are no more messages, OnIdle is called.
 846  * If OnIdle requests more time,
 847  * it will be repeatedly called so long as there are no pending messages.
 848  * A 'feature' of this is that once OnIdle has decided that no more processing
 849  * is required, then it won't get processing time until further messages
 850  * are processed (it'll sit in DoMessage).
 851  */
 852
 853 int wxApp::MainLoop()
 854 {
 855   m_keepGoing = TRUE;
 856
 857   while ( m_keepGoing )
 858   {
 859     #if wxUSE_THREADS
 860         wxMutexGuiLeaveOrEnter();
 861     #endif // wxUSE_THREADS
 862
 863     while ( !::PeekMessage(&s_currentMsg, 0, 0, 0, PM_NOREMOVE) &&
 864             ProcessIdle() )
 865     {
 866     }
 867
 868     DoMessage();
 869   }
 870
 871   return s_currentMsg.wParam;
 872 }
 873
 874 // Returns TRUE if more time is needed.
 875 bool wxApp::ProcessIdle()
 876 {
 877     wxIdleEvent event;
 878     event.SetEventObject(this);
 879     ProcessEvent(event);
 880
 881     return event.MoreRequested();
 882 }
 883
 884 void wxApp::ExitMainLoop()
 885 {
 886   m_keepGoing = FALSE;
 887 }
 888
 889 bool wxApp::Pending()
 890 {
 891   return (::PeekMessage(&s_currentMsg, 0, 0, 0, PM_NOREMOVE) != 0) ;
 892 }
 893
 894 void wxApp::Dispatch()
 895 {
 896     DoMessage();
 897 }
 898
 899 /*
 900  * Give all windows a chance to preprocess
 901  * the message. Some may have accelerator tables, or have
 902  * MDI complications.
 903  */
 904 bool wxApp::ProcessMessage(WXMSG *Msg)
 905 {
 906   MSG *msg = (MSG *)Msg;
 907
 908   HWND hWnd;
 909
 910   // Try translations first; find the youngest window with
 911   // a translation table.
 912   for (hWnd = msg->hwnd; hWnd != (HWND) NULL; hWnd = ::GetParent(hWnd))
 913   {
 914     wxWindow *wnd = wxFindWinFromHandle((WXHWND) hWnd);
 915     if (wnd)
 916     {
 917        if (wnd->MSWTranslateMessage(Msg))
 918          return TRUE;
 919     }
 920   }
 921
 922   // Anyone for a non-translation message? Try youngest descendants first.
 923   for (hWnd = msg->hwnd; hWnd != (HWND) NULL; hWnd = ::GetParent(hWnd))
 924   {
 925     wxWindow *wnd = wxFindWinFromHandle((WXHWND) hWnd);
 926     if (wnd)
 927     {
 928        if (wnd->MSWProcessMessage(Msg))
 929          return TRUE;
 930     }
 931   }
 932   return FALSE;
 933 }
 934
 935 void wxApp::OnIdle(wxIdleEvent& event)
 936 {
 937     static bool s_inOnIdle = FALSE;
 938
 939     // Avoid recursion (via ProcessEvent default case)
 940     if ( s_inOnIdle )
 941         return;
 942
 943     s_inOnIdle = TRUE;
 944
 945     // 'Garbage' collection of windows deleted with Close().
 946     DeletePendingObjects();
 947
 948     // flush the logged messages if any
 949     wxLog *pLog = wxLog::GetActiveTarget();
 950     if ( pLog != NULL && pLog->HasPendingMessages() )
 951         pLog->Flush();
 952
 953     // Send OnIdle events to all windows
 954     if ( SendIdleEvents() )
 955     {
 956         // SendIdleEvents() returns TRUE if at least one window requested more
 957         // idle events
 958         event.RequestMore(TRUE);
 959     }
 960
 961     s_inOnIdle = FALSE;
 962 }
 963
 964 // Send idle event to all top-level windows
 965 bool wxApp::SendIdleEvents()
 966 {
 967     bool needMore = FALSE;
 968     wxNode* node = wxTopLevelWindows.First();
 969     while (node)
 970     {
 971         wxWindow* win = (wxWindow*) node->Data();
 972         if (SendIdleEvents(win))
 973             needMore = TRUE;
 974
 975         node = node->Next();
 976     }
 977
 978     return needMore;
 979 }
 980
 981 // Send idle event to window and all subwindows
 982 bool wxApp::SendIdleEvents(wxWindow* win)
 983 {
 984   bool needMore = FALSE;
 985
 986   wxIdleEvent event;
 987   event.SetEventObject(win);
 988   win->GetEventHandler()->ProcessEvent(event);
 989
 990   if (event.MoreRequested())
 991     needMore = TRUE;
 992
 993   wxNode* node = win->GetChildren().First();
 994   while (node)
 995   {
 996     wxWindow* win = (wxWindow*) node->Data();
 997     if (SendIdleEvents(win))
 998       needMore = TRUE;
 999
1000     node = node->Next();
1001   }
1002   return needMore ;
1003 }
1004
1005 void wxApp::DeletePendingObjects()
1006 {
1007   wxNode *node = wxPendingDelete.First();
1008   while (node)
1009   {
1010     wxObject *obj = (wxObject *)node->Data();
1011
1012     delete obj;
1013
1014     if (wxPendingDelete.Member(obj))
1015       delete node;
1016
1017     // Deleting one object may have deleted other pending
1018     // objects, so start from beginning of list again.
1019     node = wxPendingDelete.First();
1020   }
1021 }
1022
1023 void wxApp::OnEndSession(wxCloseEvent& WXUNUSED(event))
1024 {
1025     if (GetTopWindow())
1026         GetTopWindow()->Close(TRUE);
1027 }
1028
1029 // Default behaviour: close the application with prompts. The
1030 // user can veto the close, and therefore the end session.
1031 void wxApp::OnQueryEndSession(wxCloseEvent& event)
1032 {
1033     if (GetTopWindow())
1034     {
1035         if (!GetTopWindow()->Close(!event.CanVeto()))
1036             event.Veto(TRUE);
1037     }
1038 }
1039
1040 wxLog* wxApp::CreateLogTarget()
1041 {
1042     return new wxLogGui;
1043 }
1044
1045 wxWindow* wxApp::GetTopWindow() const
1046 {
1047     if (m_topWindow)
1048         return m_topWindow;
1049     else if (wxTopLevelWindows.Number() > 0)
1050         return (wxWindow*) wxTopLevelWindows.First()->Data();
1051     else
1052         return NULL;
1053 }
1054
1055 int wxApp::GetComCtl32Version() const
1056 {
1057     // have we loaded COMCTL32 yet?
1058     HMODULE theModule = ::GetModuleHandle("COMCTL32");
1059     int version = 0;
1060
1061     // if so, then we can check for the version
1062     if (theModule)
1063     {
1064         // InitCommonControlsEx is unique to 4.7 and later
1065         FARPROC theProc = ::GetProcAddress(theModule, "InitCommonControlsEx");
1066
1067         if (! theProc)
1068         {                    // not found, must be 4.00
1069       version = 400;
1070         }
1071         else
1072         {
1073       // The following symbol are unique to 4.71
1074       //   DllInstall
1075       //   FlatSB_EnableScrollBar FlatSB_GetScrollInfo FlatSB_GetScrollPos
1076       //   FlatSB_GetScrollProp FlatSB_GetScrollRange FlatSB_SetScrollInfo
1077       //   FlatSB_SetScrollPos FlatSB_SetScrollProp FlatSB_SetScrollRange
1078       //   FlatSB_ShowScrollBar
1079       //   _DrawIndirectImageList _DuplicateImageList
1080       //   InitializeFlatSB
1081       //   UninitializeFlatSB
1082       // we could check for any of these - I chose DllInstall
1083       FARPROC theProc = ::GetProcAddress(theModule, "DllInstall");
1084       if (! theProc)
1085       {
1086         // not found, must be 4.70
1087         version = 470;
1088       }
1089       else
1090       {                         // found, must be 4.71
1091         version = 471;
1092       }
1093         }
1094     }
1095     return version;
1096 }
1097
1098 void wxExit()
1099 {
1100   wxApp::CleanUp();
1101   FatalAppExit(0, "Fatal error: exiting");
1102 }
1103
1104 // Yield to incoming messages
1105 bool wxYield()
1106 {
1107   MSG msg;
1108   // We want to go back to the main message loop
1109   // if we see a WM_QUIT. (?)
1110   while (PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE) && msg.message != WM_QUIT)
1111   {
1112     if ( !wxTheApp->DoMessage() )
1113       break;
1114   }
1115
1116   return TRUE;
1117 }
1118
1119 HINSTANCE wxGetInstance()
1120 {
1121   return wxhInstance;
1122 }
1123
1124 // For some reason, with MSVC++ 1.5, WinMain isn't linked in properly
1125 // if in a separate file. So include it here to ensure it's linked.
1126 #if (defined(__VISUALC__) && !defined(__WIN32__)) || (defined(__GNUWIN32__) && !defined(__TWIN32__))
1127   #include "main.cpp"
1128 #endif