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 #endif
  38
  39 #include "wx/msw/private.h"
  40 #include "wx/log.h"
  41 #include "wx/module.h"
  42
  43 #if wxUSE_THREADS
  44     #include "wx/thread.h"
  45
  46     // define the array of MSG strutures
  47     WX_DECLARE_OBJARRAY(MSG, wxMsgArray);
  48
  49     #include "wx/arrimpl.cpp"
  50
  51     WX_DEFINE_OBJARRAY(wxMsgArray);
  52 #endif // wxUSE_THREADS
  53
  54 #if wxUSE_WX_RESOURCES
  55   #include "wx/resource.h"
  56 #endif
  57
  58 // To UG: there's no point in putting this #if here
  59 // if you don't do the same for the Ole calls further down.
  60 // Also, OLE is used not just for drag and drop (it's used by automatn.cpp).
  61 // #if wxUSE_DRAG_AND_DROP
  62 #if !defined(__GNUWIN32__) && !defined(__SC__) && !defined(__SALFORDC__)
  63 #include <ole2.h>
  64 #endif
  65
  66 // #endif
  67
  68 #include <string.h>
  69 #include <ctype.h>
  70
  71 #if (defined(__WIN95__) && !defined(__GNUWIN32__)) || defined(__TWIN32__)
  72   #include <commctrl.h>
  73 #endif
  74
  75 // use debug CRT functions for memory leak detections in VC++ if we're not
  76 // using wxWindows own methods
  77 #if defined(__WXDEBUG__) && defined(_MSC_VER) && !wxUSE_GLOBAL_MEMORY_OPERATORS && !defined(__NO_VC_CRTDBG__)
  78     #define wxUSE_VC_CRTDBG
  79 #else
  80     #undef wxUSE_VC_CRTDBG
  81 #endif
  82
  83 #ifdef wxUSE_VC_CRTDBG
  84   // VC++ uses this macro as debug/release mode indicator
  85   #ifndef _DEBUG
  86     #define _DEBUG
  87   #endif
  88
  89   /* Need to undef new if including crtdbg.h */
  90   #ifdef new
  91     #undef new
  92   #endif
  93
  94   #include <crtdbg.h>
  95
  96   #if defined(__WXDEBUG__) && wxUSE_GLOBAL_MEMORY_OPERATORS && wxUSE_DEBUG_NEW_ALWAYS
  97     #define new new(__FILE__,__LINE__)
  98   #endif
  99 #endif // wxUSE_VC_CRTDBG
 100
 101 extern char *wxBuffer;
 102 extern char *wxOsVersion;
 103 extern wxList *wxWinHandleList;
 104 extern wxList WXDLLEXPORT wxPendingDelete;
 105 extern void wxSetKeyboardHook(bool doIt);
 106 extern wxCursor *g_globalCursor;
 107
 108 HINSTANCE wxhInstance = 0;
 109 static MSG s_currentMsg;
 110 wxApp *wxTheApp = NULL;
 111
 112 // @@ why not const? and not static?
 113 char wxFrameClassName[]         = "wxFrameClass";
 114 char wxMDIFrameClassName[]      = "wxMDIFrameClass";
 115 char wxMDIChildFrameClassName[] = "wxMDIChildFrameClass";
 116 char wxPanelClassName[]         = "wxPanelClass";
 117 char wxCanvasClassName[]        = "wxCanvasClass";
 118
 119 HICON wxSTD_FRAME_ICON = (HICON) NULL;
 120 HICON wxSTD_MDICHILDFRAME_ICON = (HICON) NULL;
 121 HICON wxSTD_MDIPARENTFRAME_ICON = (HICON) NULL;
 122
 123 HICON wxDEFAULT_FRAME_ICON = (HICON) NULL;
 124 HICON wxDEFAULT_MDICHILDFRAME_ICON = (HICON) NULL;
 125 HICON wxDEFAULT_MDIPARENTFRAME_ICON = (HICON) NULL;
 126
 127 HBRUSH wxDisableButtonBrush = (HBRUSH) 0;
 128
 129 LRESULT APIENTRY wxWndProc(HWND, UINT, WPARAM, LPARAM);
 130
 131 #if !USE_SHARED_LIBRARY
 132   IMPLEMENT_DYNAMIC_CLASS(wxApp, wxEvtHandler)
 133
 134   BEGIN_EVENT_TABLE(wxApp, wxEvtHandler)
 135       EVT_IDLE(wxApp::OnIdle)
 136       EVT_END_SESSION(wxApp::OnEndSession)
 137       EVT_QUERY_END_SESSION(wxApp::OnQueryEndSession)
 138   END_EVENT_TABLE()
 139 #endif
 140
 141 long wxApp::sm_lastMessageTime = 0;
 142
 143 #if defined(__WIN95__) && !defined(__TWIN32__)
 144 #define wxUSE_RICHEDIT 1
 145 #else
 146 #define wxUSE_RICHEDIT 0
 147 #endif
 148
 149 #if wxUSE_RICHEDIT
 150   static HINSTANCE gs_hRichEdit = (HINSTANCE) NULL;
 151 #endif
 152
 153 //// Initialize
 154
 155 bool wxApp::Initialize()
 156 {
 157     // Some people may wish to use this, but
 158     // probably it shouldn't be here by default.
 159 #ifdef __WXDEBUG__
 160 //    wxRedirectIOToConsole();
 161 #endif
 162
 163     wxBuffer = new char[1500];
 164
 165 #ifdef wxUSE_VC_CRTDBG
 166     // do check for memory leaks on program exit
 167     // (another useful flag is _CRTDBG_DELAY_FREE_MEM_DF which doesn't free
 168     //  deallocated memory which may be used to simulate low-memory condition)
 169     _CrtSetDbgFlag(_CrtSetDbgFlag(_CRTDBG_REPORT_FLAG) | _CRTDBG_LEAK_CHECK_DF);
 170 #endif // debug build under MS VC++
 171
 172     wxClassInfo::InitializeClasses();
 173
 174 #if wxUSE_RESOURCES
 175     wxGetResource("wxWindows", "OsVersion", &wxOsVersion);
 176 #endif
 177
 178     wxTheColourDatabase = new wxColourDatabase(wxKEY_STRING);
 179     wxTheColourDatabase->Initialize();
 180
 181     wxInitializeStockLists();
 182     wxInitializeStockObjects();
 183
 184 #if wxUSE_WX_RESOURCES
 185     wxInitializeResourceSystem();
 186 #endif
 187
 188     wxBitmap::InitStandardHandlers();
 189
 190 #if defined(__WIN95__)
 191     InitCommonControls();
 192
 193 #if wxUSE_RICHEDIT
 194     gs_hRichEdit = LoadLibrary("RICHED32.DLL");
 195
 196     if (gs_hRichEdit == (HINSTANCE) NULL)
 197     {
 198       wxMessageBox("Could not initialise Rich Edit DLL");
 199     }
 200 #endif
 201
 202 #endif
 203
 204     int iMsg = 96;
 205
 206    // for OLE, enlarge message queue to be as large as possible
 207    while (!SetMessageQueue(iMsg) && (iMsg -= 8));
 208
 209 /*
 210     DWORD dwOleVer;
 211     dwOleVer = CoBuildVersion();
 212
 213     // check the OLE library version
 214     if (rmm != HIWORD(dwOleVer))
 215     {
 216         wxMessageBox("Incorrect version of OLE libraries.");
 217         return FALSE;
 218     }
 219 */
 220
 221 #if !defined(__GNUWIN32__) && !defined(__SC__) && !defined(__SALFORDC__)
 222     // we need to initialize OLE library
 223     if ( FAILED(::OleInitialize(NULL)) )
 224       wxFatalError(_("Cannot initialize OLE"));
 225 #endif
 226
 227 #if CTL3D
 228     if (!Ctl3dRegister(wxhInstance))
 229       wxFatalError("Cannot register CTL3D");
 230
 231     Ctl3dAutoSubclass(wxhInstance);
 232 #endif
 233
 234     g_globalCursor = new wxCursor;
 235
 236     wxSTD_FRAME_ICON = LoadIcon(wxhInstance, "wxSTD_FRAME");
 237     wxSTD_MDIPARENTFRAME_ICON = LoadIcon(wxhInstance, "wxSTD_MDIPARENTFRAME");
 238     wxSTD_MDICHILDFRAME_ICON = LoadIcon(wxhInstance, "wxSTD_MDICHILDFRAME");
 239
 240     wxDEFAULT_FRAME_ICON = LoadIcon(wxhInstance, "wxDEFAULT_FRAME");
 241     wxDEFAULT_MDIPARENTFRAME_ICON = LoadIcon(wxhInstance, "wxDEFAULT_MDIPARENTFRAME");
 242     wxDEFAULT_MDICHILDFRAME_ICON = LoadIcon(wxhInstance, "wxDEFAULT_MDICHILDFRAME");
 243
 244     RegisterWindowClasses();
 245
 246     // Create the brush for disabling bitmap buttons
 247
 248     LOGBRUSH lb ;
 249     lb.lbStyle = BS_PATTERN;
 250     lb.lbHatch = (int)LoadBitmap( wxhInstance, "wxDISABLE_BUTTON_BITMAP" ) ;
 251     wxDisableButtonBrush = ::CreateBrushIndirect( & lb ) ;
 252     ::DeleteObject( (HGDIOBJ)lb.lbHatch ) ;
 253
 254 #if wxUSE_PENWINDOWS
 255     wxRegisterPenWin();
 256 #endif
 257
 258     wxWinHandleList = new wxList(wxKEY_INTEGER);
 259
 260     // This is to foil optimizations in Visual C++ that
 261     // throw out dummy.obj.
 262 #if defined(_MSC_VER) && !defined(WXMAKINGDLL)
 263     extern char wxDummyChar;
 264     if (wxDummyChar) wxDummyChar++;
 265 #endif
 266
 267     wxSetKeyboardHook(TRUE);
 268
 269     wxModule::RegisterModules();
 270     if (!wxModule::InitializeModules())
 271         return FALSE;
 272     return TRUE;
 273 }
 274
 275 //// RegisterWindowClasses
 276
 277 bool wxApp::RegisterWindowClasses()
 278 {
 279 ///////////////////////////////////////////////////////////////////////
 280 // Register the frame window class.
 281   WNDCLASS wndclass;   // Structure used to register Windows class.
 282
 283   wndclass.style         = CS_HREDRAW | CS_VREDRAW;
 284   wndclass.lpfnWndProc   = (WNDPROC)wxWndProc;
 285   wndclass.cbClsExtra    = 0;
 286   wndclass.cbWndExtra    = sizeof( DWORD ); // was 4
 287   wndclass.hInstance     = wxhInstance;
 288   wndclass.hIcon         = (HICON) NULL;        // wxSTD_FRAME_ICON;
 289   wndclass.hCursor       = LoadCursor( (HINSTANCE) NULL, IDC_ARROW );
 290   wndclass.hbrBackground =  (HBRUSH)(COLOR_APPWORKSPACE+1) ;
 291 //  wndclass.hbrBackground = GetStockObject( WHITE_BRUSH );
 292   wndclass.lpszMenuName  = NULL;
 293 #ifdef _MULTIPLE_INSTANCES
 294   sprintf( wxFrameClassName,"wxFrameClass%d", wxhInstance );
 295 #endif
 296   wndclass.lpszClassName = wxFrameClassName;
 297
 298   if (!RegisterClass( &wndclass ))
 299   {
 300     // wxFatalError("Can't register Frame Window class");
 301   }
 302
 303 ///////////////////////////////////////////////////////////////////////
 304 // Register the MDI frame window class.
 305   WNDCLASS wndclass1;   // Structure used to register Windows class.
 306
 307   wndclass1.style         = CS_HREDRAW | CS_VREDRAW;
 308   wndclass1.lpfnWndProc   = (WNDPROC)wxWndProc;
 309   wndclass1.cbClsExtra    = 0;
 310   wndclass1.cbWndExtra    = sizeof( DWORD ); // was 4
 311   wndclass1.hInstance     = wxhInstance;
 312   wndclass1.hIcon         = (HICON) NULL; // wxSTD_MDIPARENTFRAME_ICON;
 313   wndclass1.hCursor       = LoadCursor( (HINSTANCE) NULL, IDC_ARROW );
 314 //  wndclass1.hbrBackground =  (HBRUSH)(COLOR_APPWORKSPACE+1) ;
 315   wndclass1.hbrBackground = (HBRUSH) NULL;
 316   wndclass1.lpszMenuName  = NULL;
 317
 318   wndclass1.lpszClassName = wxMDIFrameClassName;
 319   if (!RegisterClass( &wndclass1 ))
 320   {
 321 //    wxFatalError("Can't register MDI Frame window class");
 322 //  return FALSE;
 323   }
 324
 325 ///////////////////////////////////////////////////////////////////////
 326 // Register the MDI child frame window class.
 327   WNDCLASS wndclass4;   // Structure used to register Windows class.
 328
 329   wndclass4.style         = CS_HREDRAW | CS_VREDRAW;
 330   wndclass4.lpfnWndProc   = (WNDPROC)wxWndProc;
 331   wndclass4.cbClsExtra    = 0;
 332   wndclass4.cbWndExtra    = sizeof( DWORD ); // was 4
 333   wndclass4.hInstance     = wxhInstance;
 334   wndclass4.hIcon         = (HICON) NULL;       // wxSTD_MDICHILDFRAME_ICON;
 335   wndclass4.hCursor       = LoadCursor( (HINSTANCE) NULL, IDC_ARROW );
 336   // TODO: perhaps this should be NULL so that Windows doesn't
 337   // paint the background itself (would OnEraseBackground duplicate
 338   // this?)
 339   wndclass4.hbrBackground =  (HBRUSH)(COLOR_WINDOW+1) ;
 340 //  wndclass4.hbrBackground = NULL;
 341   wndclass4.lpszMenuName  = NULL;
 342   wndclass4.lpszClassName = wxMDIChildFrameClassName;
 343
 344   if (!RegisterClass( &wndclass4 ))
 345   {
 346 //   wxFatalError("Can't register MDI child frame window class");
 347 //   return FALSE;
 348   }
 349
 350 ///////////////////////////////////////////////////////////////////////
 351 // Register the panel window class.
 352   WNDCLASS wndclass2;   // Structure used to register Windows class.
 353   memset(&wndclass2, 0, sizeof(WNDCLASS));   // start with NULL defaults
 354   // Use CS_OWNDC to avoid messing about restoring the context
 355   // for every graphic operation.
 356   wndclass2.style         = CS_HREDRAW | CS_VREDRAW;
 357   wndclass2.lpfnWndProc   = (WNDPROC)wxWndProc;
 358   wndclass2.cbClsExtra    = 0;
 359   wndclass2.cbWndExtra    = sizeof( DWORD ); // was 4
 360   wndclass2.hInstance     = wxhInstance;
 361   wndclass2.hIcon         = (HICON) NULL;
 362   wndclass2.hCursor       = (HCURSOR) NULL;
 363 //  wndclass2.hbrBackground = (HBRUSH)(COLOR_BTNFACE+1) ;
 364   wndclass2.hbrBackground = (HBRUSH) GetStockObject( LTGRAY_BRUSH );
 365   wndclass2.lpszMenuName  = NULL;
 366   wndclass2.lpszClassName = wxPanelClassName;
 367   if (!RegisterClass( &wndclass2 ))
 368   {
 369 //   wxFatalError("Can't register Panel Window class");
 370 //   return FALSE;
 371   }
 372
 373 ///////////////////////////////////////////////////////////////////////
 374 // Register the canvas and textsubwindow class name
 375   WNDCLASS wndclass3;   // Structure used to register Windows class.
 376   memset(&wndclass3, 0, sizeof(WNDCLASS));   // start with NULL defaults
 377   // Use CS_OWNDC to avoid messing about restoring the context
 378   // for every graphic operation.
 379 //  wndclass3.style         = CS_HREDRAW | CS_VREDRAW | CS_OWNDC | CS_DBLCLKS ;
 380   // wxWin 2.0
 381   wndclass3.style         = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS ;
 382   wndclass3.lpfnWndProc   = (WNDPROC)wxWndProc;
 383   wndclass3.cbClsExtra    = 0;
 384   wndclass3.cbWndExtra    = sizeof( DWORD ); // was 4
 385   wndclass3.hInstance     = wxhInstance;
 386   wndclass3.hIcon         = (HICON) NULL;
 387   wndclass3.hCursor       = (HCURSOR) NULL;
 388 //  wndclass3.hbrBackground = (HBRUSH)(COLOR_WINDOW+1) ;
 389   wndclass3.hbrBackground = (HBRUSH) NULL;
 390   wndclass3.lpszMenuName  = NULL;
 391   wndclass3.lpszClassName = wxCanvasClassName;
 392   if (!RegisterClass( &wndclass3))
 393   {
 394 //   wxFatalError("Can't register Canvas class");
 395 //   return FALSE;
 396   }
 397
 398   return TRUE;
 399 }
 400
 401 //// Convert Windows to argc, argv style
 402
 403 void wxApp::ConvertToStandardCommandArgs(char* lpCmdLine)
 404 {
 405     wxStringList args;
 406
 407     wxString cmdLine(lpCmdLine);
 408     int count = 0;
 409
 410     // Get application name
 411     char name[260]; // 260 is MAX_PATH value from windef.h
 412     ::GetModuleFileName(wxhInstance, name, WXSIZEOF(name));
 413
 414     // GNUWIN32 already fills in the first arg with the application name.
 415 #if !defined(__GNUWIN32__)
 416     args.Add(name);
 417     count ++;
 418 #endif
 419
 420     strcpy(name, wxFileNameFromPath(name));
 421     wxStripExtension(name);
 422     wxTheApp->SetAppName(name);
 423
 424     // Break up string
 425     // Treat strings enclosed in double-quotes as single arguments
 426     int i = 0;
 427     int len = cmdLine.Length();
 428     while (i < len)
 429     {
 430         // Skip whitespace
 431         while ((i < len) && isspace(cmdLine.GetChar(i)))
 432             i ++;
 433
 434         if (i < len)
 435         {
 436             if (cmdLine.GetChar(i) == '"') // We found the start of a string
 437             {
 438                 i ++;
 439                 int first = i;
 440                 while ((i < len) && (cmdLine.GetChar(i) != '"'))
 441                     i ++;
 442
 443                 wxString arg(cmdLine.Mid(first, (i - first)));
 444
 445                 args.Add(arg);
 446                 count ++;
 447
 448                 if (i < len)
 449                     i ++; // Skip past 2nd quote
 450             }
 451             else // Unquoted argument
 452             {
 453                 int first = i;
 454                 while ((i < len) && !isspace(cmdLine.GetChar(i)))
 455                     i ++;
 456
 457                 wxString arg(cmdLine.Mid(first, (i - first)));
 458
 459                 args.Add(arg);
 460                 count ++;
 461             }
 462         }
 463     }
 464
 465     wxTheApp->argv = new char*[count + 1];
 466     for (i = 0; i < count; i++)
 467     {
 468         wxString arg(args[i]);
 469         wxTheApp->argv[i] = copystring((const char*)arg);
 470     }
 471     wxTheApp->argv[count] = NULL; // argv[] is a NULL-terminated list
 472     wxTheApp->argc = count;
 473 }
 474
 475 //// Cleans up any wxWindows internal structures left lying around
 476
 477 void wxApp::CleanUp()
 478 {
 479   //// COMMON CLEANUP
 480   wxModule::CleanUpModules();
 481
 482 #if wxUSE_WX_RESOURCES
 483   wxCleanUpResourceSystem();
 484
 485 //  wxDefaultResourceTable->ClearTable();
 486 #endif
 487
 488   // Indicate that the cursor can be freed,
 489   // so that cursor won't be deleted by deleting
 490   // the bitmap list before g_globalCursor goes out
 491   // of scope (double deletion of the cursor).
 492   wxSetCursor(wxNullCursor);
 493   delete g_globalCursor;
 494
 495   wxDeleteStockObjects() ;
 496
 497   // Destroy all GDI lists, etc.
 498   wxDeleteStockLists();
 499
 500   delete wxTheColourDatabase;
 501   wxTheColourDatabase = NULL;
 502
 503   wxBitmap::CleanUpHandlers();
 504
 505   delete[] wxBuffer;
 506   wxBuffer = NULL;
 507
 508   //// WINDOWS-SPECIFIC CLEANUP
 509
 510   wxSetKeyboardHook(FALSE);
 511
 512 #ifdef __WIN95__
 513
 514 #if wxUSE_RICHEDIT
 515   if (gs_hRichEdit != (HINSTANCE) NULL)
 516     FreeLibrary(gs_hRichEdit);
 517 #endif
 518
 519 #endif
 520
 521 #if wxUSE_PENWINDOWS
 522   wxCleanUpPenWin();
 523 #endif
 524
 525   if (wxSTD_FRAME_ICON)
 526     DestroyIcon(wxSTD_FRAME_ICON);
 527   if (wxSTD_MDICHILDFRAME_ICON)
 528     DestroyIcon(wxSTD_MDICHILDFRAME_ICON);
 529   if (wxSTD_MDIPARENTFRAME_ICON)
 530     DestroyIcon(wxSTD_MDIPARENTFRAME_ICON);
 531
 532   if (wxDEFAULT_FRAME_ICON)
 533     DestroyIcon(wxDEFAULT_FRAME_ICON);
 534   if (wxDEFAULT_MDICHILDFRAME_ICON)
 535     DestroyIcon(wxDEFAULT_MDICHILDFRAME_ICON);
 536   if (wxDEFAULT_MDIPARENTFRAME_ICON)
 537     DestroyIcon(wxDEFAULT_MDIPARENTFRAME_ICON);
 538
 539   if ( wxDisableButtonBrush )
 540     ::DeleteObject( wxDisableButtonBrush ) ;
 541
 542 #if !defined(__GNUWIN32__) && !defined(__SC__) && !defined(__SALFORDC__)
 543   ::OleUninitialize();
 544 #endif
 545
 546 #if CTL3D
 547   Ctl3dUnregister(wxhInstance);
 548 #endif
 549
 550   if (wxWinHandleList)
 551     delete wxWinHandleList ;
 552
 553   wxClassInfo::CleanUpClasses();
 554
 555   delete wxTheApp;
 556   wxTheApp = NULL;
 557
 558 #if (defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT
 559   // At this point we want to check if there are any memory
 560   // blocks that aren't part of the wxDebugContext itself,
 561   // as a special case. Then when dumping we need to ignore
 562   // wxDebugContext, too.
 563   if (wxDebugContext::CountObjectsLeft() > 0)
 564   {
 565       wxLogDebug("There were memory leaks.");
 566       wxDebugContext::Dump();
 567       wxDebugContext::PrintStatistics();
 568   }
 569 //  wxDebugContext::SetStream(NULL, NULL);
 570 #endif
 571
 572   // do it as the very last thing because everything else can log messages
 573   wxLog::DontCreateOnDemand();
 574   delete wxLog::SetActiveTarget(NULL);
 575 }
 576
 577 #if !defined(_WINDLL) || (defined(_WINDLL) && defined(WXMAKINGDLL))
 578
 579 // temporarily disable this warning
 580 #ifdef _MSC_VER
 581     #pragma warning(disable: 4715) // not all control paths return a value
 582 #endif // Visual C++
 583
 584 //// Main wxWindows entry point
 585 int wxEntry(WXHINSTANCE hInstance,
 586             WXHINSTANCE WXUNUSED(hPrevInstance),
 587             char *lpCmdLine,
 588             int nCmdShow,
 589             bool enterLoop)
 590 {
 591   // take everything into a try-except block in release build
 592   // FIXME other compilers must support Win32 SEH (structured exception
 593   //       handling) too, just find the appropriate keyword in their docs!
 594   //       Please note that it's _not_ the same as C++ exceptions!
 595 #if !defined(__WXDEBUG__) && defined(_MSC_VER)
 596     #define CATCH_PROGRAM_EXCEPTIONS
 597
 598   __try {
 599 #else
 600     #undef  CATCH_PROGRAM_EXCEPTIONS
 601 #endif
 602
 603   wxhInstance = (HINSTANCE) hInstance;
 604
 605   if (!wxApp::Initialize())
 606     return 0;
 607
 608   // create the application object or ensure that one already exists
 609   if (!wxTheApp)
 610   {
 611     // The app may have declared a global application object, but we recommend
 612     // the IMPLEMENT_APP macro is used instead, which sets an initializer
 613     // function for delayed, dynamic app object construction.
 614     wxCHECK_MSG( wxApp::GetInitializerFunction(), 0,
 615                  "No initializer - use IMPLEMENT_APP macro." );
 616
 617     wxTheApp = (*wxApp::GetInitializerFunction()) ();
 618   }
 619
 620   wxCHECK_MSG( wxTheApp, 0, "You have to define an instance of wxApp!" );
 621
 622   // save the WinMain() parameters
 623   wxTheApp->ConvertToStandardCommandArgs(lpCmdLine);
 624   wxTheApp->m_nCmdShow = nCmdShow;
 625
 626   // GUI-specific initialisation. In fact on Windows we don't have any,
 627   // but this call is provided for compatibility across platforms.
 628   wxTheApp->OnInitGui() ;
 629
 630   int retValue = 0;
 631
 632   if ( wxTheApp->OnInit() )
 633   {
 634       if ( enterLoop )
 635       {
 636           retValue = wxTheApp->OnRun();
 637       }
 638   }
 639   //else: app initialization failed, so we skipped OnRun()
 640
 641   wxWindow *topWindow = wxTheApp->GetTopWindow();
 642   if ( topWindow )
 643   {
 644       // Forcibly delete the window.
 645       if ( topWindow->IsKindOf(CLASSINFO(wxFrame)) ||
 646            topWindow->IsKindOf(CLASSINFO(wxDialog)) )
 647       {
 648           topWindow->Close(TRUE);
 649           wxTheApp->DeletePendingObjects();
 650       }
 651       else
 652       {
 653           delete topWindow;
 654           wxTheApp->SetTopWindow(NULL);
 655       }
 656   }
 657
 658   wxTheApp->OnExit();
 659
 660   // flush the logged messages if any
 661   wxLog *pLog = wxLog::GetActiveTarget();
 662   if ( pLog != NULL && pLog->HasPendingMessages() )
 663     pLog->Flush();
 664
 665
 666   wxApp::CleanUp();
 667
 668   return retValue;
 669
 670 #ifdef CATCH_PROGRAM_EXCEPTIONS
 671   }
 672   __except ( EXCEPTION_EXECUTE_HANDLER ) {
 673     /*
 674     if ( wxTheApp )
 675       wxTheApp->OnFatalException();
 676     */
 677
 678     ::ExitProcess(3); // the same exit code as abort()
 679
 680     // NOTREACHED
 681   }
 682 #endif // CATCH_PROGRAM_EXCEPTIONS
 683 }
 684
 685 // restore warning state
 686 #ifdef _MSC_VER
 687     #pragma warning(default: 4715) // not all control paths return a value
 688 #endif // Visual C++
 689
 690 #else /*  _WINDLL  */
 691
 692 //// Entry point for DLLs
 693
 694 int wxEntry(WXHINSTANCE hInstance)
 695 {
 696   wxhInstance = (HINSTANCE) hInstance;
 697   wxApp::Initialize();
 698
 699   // The app may have declared a global application object, but we recommend
 700   // the IMPLEMENT_APP macro is used instead, which sets an initializer function
 701   // for delayed, dynamic app object construction.
 702
 703   if (!wxTheApp)
 704   {
 705     if (!wxApp::GetInitializerFunction())
 706     {
 707       MessageBox(NULL, "No initializer - use IMPLEMENT_APP macro.", "wxWindows Error", MB_APPLMODAL | MB_ICONSTOP | MB_OK);
 708     return 0;
 709     }
 710
 711     wxTheApp = (* wxApp::GetInitializerFunction()) ();
 712   }
 713
 714   if (!wxTheApp) {
 715     MessageBox(NULL, "You have to define an instance of wxApp!", "wxWindows Error", MB_APPLMODAL | MB_ICONSTOP | MB_OK);
 716     return 0;
 717   }
 718
 719   wxTheApp->argc = 0;
 720   wxTheApp->argv = NULL;
 721
 722   wxTheApp->OnInitGui();
 723
 724   wxTheApp->OnInit();
 725
 726   if (wxTheApp->GetTopWindow() && wxTheApp->GetTopWindow()->GetHWND()) {
 727     wxTheApp->GetTopWindow()->Show(TRUE);
 728   }
 729
 730   return 1;
 731 }
 732 #endif // _WINDLL
 733
 734 //// Static member initialization
 735
 736 wxAppInitializerFunction wxApp::m_appInitFn = (wxAppInitializerFunction) NULL;
 737
 738 wxApp::wxApp()
 739 {
 740   m_topWindow = NULL;
 741   wxTheApp = this;
 742   m_className = "";
 743   m_wantDebugOutput = TRUE ;
 744   m_appName = "";
 745   argc = 0;
 746   argv = NULL;
 747 #ifdef __WXMSW__
 748   m_printMode = wxPRINT_WINDOWS;
 749 #else
 750   m_printMode = wxPRINT_POSTSCRIPT;
 751 #endif
 752   m_exitOnFrameDelete = TRUE;
 753   m_auto3D = TRUE;
 754 }
 755
 756 wxApp::~wxApp()
 757 {
 758   // Delete command-line args
 759   int i;
 760   for (i = 0; i < argc; i++)
 761   {
 762     delete[] argv[i];
 763   }
 764   delete[] argv;
 765 }
 766
 767 bool wxApp::Initialized()
 768 {
 769 #ifndef _WINDLL
 770   if (GetTopWindow())
 771     return TRUE;
 772   else
 773     return FALSE;
 774 #endif
 775 #ifdef _WINDLL // Assume initialized if DLL (no way of telling)
 776   return TRUE;
 777 #endif
 778 }
 779
 780 /*
 781  * Get and process a message, returning FALSE if WM_QUIT
 782  * received (and also set the flag telling the app to exit the main loop)
 783  *
 784  */
 785 bool wxApp::DoMessage()
 786 {
 787     BOOL rc = ::GetMessage(&s_currentMsg, (HWND) NULL, 0, 0);
 788     if ( rc == 0 )
 789     {
 790         // got WM_QUIT
 791         m_keepGoing = FALSE;
 792
 793         return FALSE;
 794     }
 795     else if ( rc == -1 )
 796     {
 797         // should never happen, but let's test for it nevertheless
 798         wxLogLastError("GetMessage");
 799     }
 800     else
 801     {
 802 #if wxUSE_THREADS
 803         wxASSERT_MSG( wxThread::IsMain(),
 804                       "only the main thread can process Windows messages" );
 805
 806         static bool s_hadGuiLock = TRUE;
 807         static wxMsgArray s_aSavedMessages;
 808
 809         // if a secondary thread owns is doing GUI calls, save all messages for
 810         // later processing - we can't process them right now because it will
 811         // lead to recursive library calls (and we're not reentrant)
 812         if ( !wxGuiOwnedByMainThread() )
 813         {
 814             s_hadGuiLock = FALSE;
 815
 816             // leave out WM_COMMAND messages: too dangerous, sometimes
 817             // the message will be processed twice
 818             if ( !wxIsWaitingForThread() ||
 819                  s_currentMsg.message != WM_COMMAND )
 820             {
 821                 s_aSavedMessages.Add(s_currentMsg);
 822             }
 823
 824             return TRUE;
 825         }
 826         else
 827         {
 828             // have we just regained the GUI lock? if so, post all of the saved
 829             // messages
 830             //
 831             // FIXME of course, it's not _exactly_ the same as processing the
 832             //       messages normally - expect some things to break...
 833             if ( !s_hadGuiLock )
 834             {
 835                 s_hadGuiLock = TRUE;
 836
 837                 size_t count = s_aSavedMessages.Count();
 838                 for ( size_t n = 0; n < count; n++ )
 839                 {
 840                     MSG& msg = s_aSavedMessages[n];
 841
 842                     if ( !ProcessMessage((WXMSG *)&msg) )
 843                     {
 844                         ::TranslateMessage(&msg);
 845                         ::DispatchMessage(&msg);
 846                     }
 847                 }
 848
 849                 s_aSavedMessages.Empty();
 850             }
 851         }
 852 #endif // wxUSE_THREADS
 853
 854         // Process the message
 855         if ( !ProcessMessage((WXMSG *)&s_currentMsg) )
 856         {
 857             ::TranslateMessage(&s_currentMsg);
 858             wxApp::sm_lastMessageTime = s_currentMsg.time; /* MATTHEW: timeStamp impl. */
 859             ::DispatchMessage(&s_currentMsg);
 860         }
 861     }
 862
 863     return TRUE;
 864 }
 865
 866 /*
 867  * Keep trying to process messages until WM_QUIT
 868  * received.
 869  *
 870  * If there are messages to be processed, they will all be
 871  * processed and OnIdle will not be called.
 872  * When there are no more messages, OnIdle is called.
 873  * If OnIdle requests more time,
 874  * it will be repeatedly called so long as there are no pending messages.
 875  * A 'feature' of this is that once OnIdle has decided that no more processing
 876  * is required, then it won't get processing time until further messages
 877  * are processed (it'll sit in DoMessage).
 878  */
 879
 880 int wxApp::MainLoop()
 881 {
 882   m_keepGoing = TRUE;
 883
 884   while ( m_keepGoing )
 885   {
 886     #if wxUSE_THREADS
 887         wxMutexGuiLeaveOrEnter();
 888     #endif // wxUSE_THREADS
 889
 890     while ( !::PeekMessage(&s_currentMsg, 0, 0, 0, PM_NOREMOVE) &&
 891             ProcessIdle() )
 892     {
 893     }
 894
 895     DoMessage();
 896   }
 897
 898   return s_currentMsg.wParam;
 899 }
 900
 901 // Returns TRUE if more time is needed.
 902 bool wxApp::ProcessIdle()
 903 {
 904     wxIdleEvent event;
 905     event.SetEventObject(this);
 906     ProcessEvent(event);
 907
 908     return event.MoreRequested();
 909 }
 910
 911 void wxApp::ExitMainLoop()
 912 {
 913   m_keepGoing = FALSE;
 914 }
 915
 916 bool wxApp::Pending()
 917 {
 918   return (::PeekMessage(&s_currentMsg, 0, 0, 0, PM_NOREMOVE) != 0) ;
 919 }
 920
 921 void wxApp::Dispatch()
 922 {
 923     DoMessage();
 924 }
 925
 926 /*
 927  * Give all windows a chance to preprocess
 928  * the message. Some may have accelerator tables, or have
 929  * MDI complications.
 930  */
 931 bool wxApp::ProcessMessage(WXMSG *Msg)
 932 {
 933   MSG *msg = (MSG *)Msg;
 934
 935   HWND hWnd;
 936
 937   // Try translations first; find the youngest window with
 938   // a translation table.
 939   for (hWnd = msg->hwnd; hWnd != (HWND) NULL; hWnd = ::GetParent(hWnd))
 940   {
 941     wxWindow *wnd = wxFindWinFromHandle((WXHWND) hWnd);
 942     if (wnd)
 943     {
 944        if (wnd->MSWTranslateMessage(Msg))
 945          return TRUE;
 946     }
 947   }
 948
 949   // Anyone for a non-translation message? Try youngest descendants first.
 950   for (hWnd = msg->hwnd; hWnd != (HWND) NULL; hWnd = ::GetParent(hWnd))
 951   {
 952     wxWindow *wnd = wxFindWinFromHandle((WXHWND) hWnd);
 953     if (wnd)
 954     {
 955        if (wnd->MSWProcessMessage(Msg))
 956          return TRUE;
 957     }
 958   }
 959   return FALSE;
 960 }
 961
 962 void wxApp::OnIdle(wxIdleEvent& event)
 963 {
 964     static bool s_inOnIdle = FALSE;
 965
 966     // Avoid recursion (via ProcessEvent default case)
 967     if ( s_inOnIdle )
 968         return;
 969
 970     s_inOnIdle = TRUE;
 971
 972     // 'Garbage' collection of windows deleted with Close().
 973     DeletePendingObjects();
 974
 975     // flush the logged messages if any
 976     wxLog *pLog = wxLog::GetActiveTarget();
 977     if ( pLog != NULL && pLog->HasPendingMessages() )
 978         pLog->Flush();
 979
 980     // Send OnIdle events to all windows
 981     if ( SendIdleEvents() )
 982     {
 983         // SendIdleEvents() returns TRUE if at least one window requested more
 984         // idle events
 985         event.RequestMore(TRUE);
 986     }
 987
 988     s_inOnIdle = FALSE;
 989 }
 990
 991 // Send idle event to all top-level windows
 992 bool wxApp::SendIdleEvents()
 993 {
 994     bool needMore = FALSE;
 995     wxNode* node = wxTopLevelWindows.First();
 996     while (node)
 997     {
 998         wxWindow* win = (wxWindow*) node->Data();
 999         if (SendIdleEvents(win))
1000             needMore = TRUE;
1001
1002         node = node->Next();
1003     }
1004
1005     return needMore;
1006 }
1007
1008 // Send idle event to window and all subwindows
1009 bool wxApp::SendIdleEvents(wxWindow* win)
1010 {
1011   bool needMore = FALSE;
1012
1013   wxIdleEvent event;
1014   event.SetEventObject(win);
1015   win->GetEventHandler()->ProcessEvent(event);
1016
1017   if (event.MoreRequested())
1018     needMore = TRUE;
1019
1020   wxNode* node = win->GetChildren().First();
1021   while (node)
1022   {
1023     wxWindow* win = (wxWindow*) node->Data();
1024     if (SendIdleEvents(win))
1025       needMore = TRUE;
1026
1027     node = node->Next();
1028   }
1029   return needMore ;
1030 }
1031
1032 void wxApp::DeletePendingObjects()
1033 {
1034   wxNode *node = wxPendingDelete.First();
1035   while (node)
1036   {
1037     wxObject *obj = (wxObject *)node->Data();
1038
1039     delete obj;
1040
1041     if (wxPendingDelete.Member(obj))
1042       delete node;
1043
1044     // Deleting one object may have deleted other pending
1045     // objects, so start from beginning of list again.
1046     node = wxPendingDelete.First();
1047   }
1048 }
1049
1050 void wxApp::OnEndSession(wxCloseEvent& WXUNUSED(event))
1051 {
1052     if (GetTopWindow())
1053         GetTopWindow()->Close(TRUE);
1054 }
1055
1056 // Default behaviour: close the application with prompts. The
1057 // user can veto the close, and therefore the end session.
1058 void wxApp::OnQueryEndSession(wxCloseEvent& event)
1059 {
1060     if (GetTopWindow())
1061     {
1062         if (!GetTopWindow()->Close(!event.CanVeto()))
1063             event.Veto(TRUE);
1064     }
1065 }
1066
1067 wxLog* wxApp::CreateLogTarget()
1068 {
1069     return new wxLogGui;
1070 }
1071
1072 wxWindow* wxApp::GetTopWindow() const
1073 {
1074     if (m_topWindow)
1075         return m_topWindow;
1076     else if (wxTopLevelWindows.Number() > 0)
1077         return (wxWindow*) wxTopLevelWindows.First()->Data();
1078     else
1079         return NULL;
1080 }
1081
1082 int wxApp::GetComCtl32Version() const
1083 {
1084     // have we loaded COMCTL32 yet?
1085     HMODULE theModule = ::GetModuleHandle("COMCTL32");
1086     int version = 0;
1087
1088     // if so, then we can check for the version
1089     if (theModule)
1090     {
1091         // InitCommonControlsEx is unique to 4.7 and later
1092         FARPROC theProc = ::GetProcAddress(theModule, "InitCommonControlsEx");
1093
1094         if (! theProc)
1095         {                    // not found, must be 4.00
1096       version = 400;
1097         }
1098         else
1099         {
1100       // The following symbol are unique to 4.71
1101       //   DllInstall
1102       //   FlatSB_EnableScrollBar FlatSB_GetScrollInfo FlatSB_GetScrollPos
1103       //   FlatSB_GetScrollProp FlatSB_GetScrollRange FlatSB_SetScrollInfo
1104       //   FlatSB_SetScrollPos FlatSB_SetScrollProp FlatSB_SetScrollRange
1105       //   FlatSB_ShowScrollBar
1106       //   _DrawIndirectImageList _DuplicateImageList
1107       //   InitializeFlatSB
1108       //   UninitializeFlatSB
1109       // we could check for any of these - I chose DllInstall
1110       FARPROC theProc = ::GetProcAddress(theModule, "DllInstall");
1111       if (! theProc)
1112       {
1113         // not found, must be 4.70
1114         version = 470;
1115       }
1116       else
1117       {                         // found, must be 4.71
1118         version = 471;
1119       }
1120         }
1121     }
1122     return version;
1123 }
1124
1125 void wxExit()
1126 {
1127   wxApp::CleanUp();
1128   FatalAppExit(0, "Fatal error: exiting");
1129 }
1130
1131 // Yield to incoming messages
1132 bool wxYield()
1133 {
1134   MSG msg;
1135   // We want to go back to the main message loop
1136   // if we see a WM_QUIT. (?)
1137   while (PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE) && msg.message != WM_QUIT)
1138   {
1139     if ( !wxTheApp->DoMessage() )
1140       break;
1141   }
1142
1143   return TRUE;
1144 }
1145
1146 HINSTANCE wxGetInstance()
1147 {
1148   return wxhInstance;
1149 }
1150
1151 // For some reason, with MSVC++ 1.5, WinMain isn't linked in properly
1152 // if in a separate file. So include it here to ensure it's linked.
1153 #if (defined(_MSC_VER) && !defined(__WIN32__)) || (defined(__GNUWIN32__) && !defined(__TWIN32__))
1154   #include "main.cpp"
1155 #endif