src/x11/app.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        app.cpp
   3 // Purpose:     wxApp
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     17/09/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13     #pragma implementation "app.h"
  14 #endif
  15
  16 #include "wx/frame.h"
  17 #include "wx/app.h"
  18 #include "wx/utils.h"
  19 #include "wx/gdicmn.h"
  20 #include "wx/pen.h"
  21 #include "wx/brush.h"
  22 #include "wx/cursor.h"
  23 #include "wx/icon.h"
  24 #include "wx/dialog.h"
  25 #include "wx/msgdlg.h"
  26 #include "wx/log.h"
  27 #include "wx/module.h"
  28 #include "wx/memory.h"
  29 #include "wx/log.h"
  30 #include "wx/intl.h"
  31 #include "wx/evtloop.h"
  32
  33 #if wxUSE_THREADS
  34     #include "wx/thread.h"
  35 #endif
  36
  37 #if wxUSE_WX_RESOURCES
  38     #include "wx/resource.h"
  39 #endif
  40
  41 #ifdef __VMS__
  42 #pragma message disable nosimpint
  43 #endif
  44 #include <X11/Xlib.h>
  45 #include <X11/Xutil.h>
  46 #include <X11/Xresource.h>
  47 #include <X11/Xatom.h>
  48 #ifdef __VMS__
  49 #pragma message enable nosimpint
  50 #endif
  51
  52 #include "wx/x11/private.h"
  53
  54 #include <string.h>
  55
  56 extern char *wxBuffer;
  57 extern wxList wxPendingDelete;
  58
  59 wxApp *wxTheApp = NULL;
  60
  61 wxHashTable *wxWidgetHashTable = NULL;
  62
  63 IMPLEMENT_DYNAMIC_CLASS(wxApp, wxEvtHandler)
  64
  65 BEGIN_EVENT_TABLE(wxApp, wxEvtHandler)
  66     EVT_IDLE(wxApp::OnIdle)
  67 END_EVENT_TABLE()
  68
  69 #ifdef __WXDEBUG__
  70 typedef int (*XErrorHandlerFunc)(Display *, XErrorEvent *);
  71
  72 XErrorHandlerFunc gs_pfnXErrorHandler = 0;
  73
  74 static int wxXErrorHandler(Display *dpy, XErrorEvent *xevent)
  75 {
  76     // just forward to the default handler for now
  77     return gs_pfnXErrorHandler(dpy, xevent);
  78 }
  79 #endif // __WXDEBUG__
  80
  81 long wxApp::sm_lastMessageTime = 0;
  82 WXDisplay *wxApp::ms_display = NULL;
  83
  84 bool wxApp::Initialize()
  85 {
  86     wxBuffer = new char[BUFSIZ + 512];
  87
  88     wxClassInfo::InitializeClasses();
  89
  90     // GL: I'm annoyed ... I don't know where to put this and I don't want to
  91     // create a module for that as it's part of the core.
  92 #if wxUSE_THREADS
  93     wxPendingEventsLocker = new wxCriticalSection();
  94 #endif
  95
  96     wxTheColourDatabase = new wxColourDatabase(wxKEY_STRING);
  97     wxTheColourDatabase->Initialize();
  98
  99     wxInitializeStockLists();
 100     wxInitializeStockObjects();
 101
 102 #if wxUSE_WX_RESOURCES
 103     wxInitializeResourceSystem();
 104 #endif
 105
 106     wxWidgetHashTable = new wxHashTable(wxKEY_INTEGER);
 107
 108     wxModule::RegisterModules();
 109     if (!wxModule::InitializeModules()) return FALSE;
 110
 111     return TRUE;
 112 }
 113
 114 void wxApp::CleanUp()
 115 {
 116     delete wxWidgetHashTable;
 117     wxWidgetHashTable = NULL;
 118
 119     wxModule::CleanUpModules();
 120
 121 #if wxUSE_WX_RESOURCES
 122     wxCleanUpResourceSystem();
 123 #endif
 124
 125     delete wxTheColourDatabase;
 126     wxTheColourDatabase = NULL;
 127
 128     wxDeleteStockObjects();
 129
 130     wxDeleteStockLists();
 131
 132     delete wxTheApp;
 133     wxTheApp = NULL;
 134
 135     delete[] wxBuffer;
 136     wxBuffer = NULL;
 137
 138     wxClassInfo::CleanUpClasses();
 139
 140 #if wxUSE_THREADS
 141     delete wxPendingEvents;
 142     delete wxPendingEventsLocker;
 143 #endif
 144
 145 #if (defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT
 146     // At this point we want to check if there are any memory
 147     // blocks that aren't part of the wxDebugContext itself,
 148     // as a special case. Then when dumping we need to ignore
 149     // wxDebugContext, too.
 150     if (wxDebugContext::CountObjectsLeft(TRUE) > 0)
 151     {
 152         wxLogDebug("There were memory leaks.\n");
 153         wxDebugContext::Dump();
 154         wxDebugContext::PrintStatistics();
 155     }
 156 #endif
 157
 158     // do it as the very last thing because everything else can log messages
 159     wxLog::DontCreateOnDemand();
 160     // do it as the very last thing because everything else can log messages
 161     delete wxLog::SetActiveTarget(NULL);
 162 }
 163
 164 // NB: argc and argv may be changed here, pass by reference!
 165 int wxEntryStart( int& argc, char *argv[] )
 166 {
 167 #ifdef __WXDEBUG__
 168     // install the X error handler
 169     gs_pfnXErrorHandler = XSetErrorHandler( wxXErrorHandler );
 170 #endif // __WXDEBUG__
 171
 172     Display* xdisplay = XOpenDisplay(NULL);
 173
 174     if (!xdisplay)
 175     {
 176         wxLogError( _("wxWindows could not open display. Exiting.") );
 177         return -1;
 178     }
 179
 180     wxApp::ms_display = (WXDisplay*) xdisplay;
 181
 182     XSelectInput( xdisplay, XDefaultRootWindow(xdisplay), PropertyChangeMask);
 183
 184 //    wxSetDetectableAutoRepeat( TRUE );
 185
 186     if (!wxApp::Initialize())
 187         return -1;
 188
 189     return 0;
 190 }
 191
 192
 193 int wxEntryInitGui()
 194 {
 195     int retValue = 0;
 196
 197     if ( !wxTheApp->OnInitGui() )
 198         retValue = -1;
 199
 200     return retValue;
 201 }
 202
 203
 204 int wxEntry( int argc, char *argv[] )
 205 {
 206 #if (defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT
 207     // This seems to be necessary since there are 'rogue'
 208     // objects present at this point (perhaps global objects?)
 209     // Setting a checkpoint will ignore them as far as the
 210     // memory checking facility is concerned.
 211     // Of course you may argue that memory allocated in globals should be
 212     // checked, but this is a reasonable compromise.
 213     wxDebugContext::SetCheckpoint();
 214 #endif
 215     int err = wxEntryStart(argc, argv);
 216     if (err)
 217         return err;
 218
 219     if (!wxTheApp)
 220     {
 221         if (!wxApp::GetInitializerFunction())
 222         {
 223             printf( "wxWindows error: No initializer - use IMPLEMENT_APP macro.\n" );
 224             return 0;
 225         };
 226
 227         wxTheApp = (wxApp*) (* wxApp::GetInitializerFunction()) ();
 228     };
 229
 230     if (!wxTheApp)
 231     {
 232         printf( "wxWindows error: wxTheApp == NULL\n" );
 233         return 0;
 234     };
 235
 236     wxTheApp->SetClassName(wxFileNameFromPath(argv[0]));
 237     wxTheApp->SetAppName(wxFileNameFromPath(argv[0]));
 238
 239     wxTheApp->argc = argc;
 240     wxTheApp->argv = argv;
 241
 242     int retValue;
 243     retValue = wxEntryInitGui();
 244
 245     // Here frames insert themselves automatically into wxTopLevelWindows by
 246     // getting created in OnInit().
 247     if ( retValue == 0 )
 248     {
 249         if ( !wxTheApp->OnInit() )
 250             retValue = -1;
 251     }
 252
 253     if ( retValue == 0 )
 254     {
 255         if (wxTheApp->Initialized()) retValue = wxTheApp->OnRun();
 256     }
 257
 258     // flush the logged messages if any
 259     wxLog *pLog = wxLog::GetActiveTarget();
 260     if ( pLog != NULL && pLog->HasPendingMessages() )
 261         pLog->Flush();
 262
 263     delete wxLog::SetActiveTarget(new wxLogStderr); // So dialog boxes aren't used
 264     // for further messages
 265
 266     if (wxTheApp->GetTopWindow())
 267     {
 268         delete wxTheApp->GetTopWindow();
 269         wxTheApp->SetTopWindow(NULL);
 270     }
 271
 272     wxTheApp->DeletePendingObjects();
 273
 274     wxTheApp->OnExit();
 275
 276     wxApp::CleanUp();
 277
 278     return retValue;
 279 };
 280
 281 // Static member initialization
 282 wxAppInitializerFunction wxAppBase::m_appInitFn = (wxAppInitializerFunction) NULL;
 283
 284 wxApp::wxApp()
 285 {
 286     m_topWindow = NULL;
 287     wxTheApp = this;
 288     m_className = "";
 289     m_wantDebugOutput = TRUE ;
 290     m_appName = "";
 291     argc = 0;
 292     argv = NULL;
 293     m_exitOnFrameDelete = TRUE;
 294     m_mainColormap = (WXColormap) NULL;
 295     m_topLevelWidget = (WXWindow) NULL;
 296     m_maxRequestSize = 0;
 297     m_mainLoop = NULL;
 298 }
 299
 300 bool wxApp::Initialized()
 301 {
 302     if (GetTopWindow())
 303         return TRUE;
 304     else
 305         return FALSE;
 306 }
 307
 308 int wxApp::MainLoop()
 309 {
 310      int rt;
 311     m_mainLoop = new wxEventLoop;
 312
 313     rt = m_mainLoop->Run();
 314
 315     delete m_mainLoop;
 316     m_mainLoop = NULL;
 317     return rt;
 318 }
 319
 320 // Processes an X event.
 321 void wxApp::ProcessXEvent(WXEvent* _event)
 322 {
 323     XEvent* event = (XEvent*) _event;
 324
 325     wxWindow* win = NULL;
 326     Window window = event->xany.window;
 327     Window actualWindow = window;
 328
 329     // Find the first wxWindow that corresponds to this event window
 330     // TODO: may need to translate coordinates from actualWindow
 331     // to window, if the receiving window != wxWindow window
 332     //    while (window && !(win = wxGetWindowFromTable(window)))
 333     //        window = wxGetWindowParent(window);
 334
 335     // Because we're receiving events after a window
 336     // has been destroyed, assume a 1:1 match between
 337     // Window and wxWindow, so if it's not in the table,
 338     // it must have been destroyed.
 339
 340     win = wxGetWindowFromTable(window);
 341     if (!win)
 342         return;
 343
 344     switch (event->type)
 345     {
 346         case KeyPress:
 347         {
 348             if (win && !win->IsEnabled())
 349                 return;
 350
 351             {
 352                 if (win)
 353                 {
 354                     wxKeyEvent keyEvent(wxEVT_KEY_DOWN);
 355                     wxTranslateKeyEvent(keyEvent, win, window, event);
 356
 357                     // We didn't process wxEVT_KEY_DOWN, so send
 358                     // wxEVT_CHAR
 359                     if (!win->GetEventHandler()->ProcessEvent( keyEvent ))
 360                     {
 361                         keyEvent.SetEventType(wxEVT_CHAR);
 362                         win->GetEventHandler()->ProcessEvent( keyEvent );
 363                     }
 364
 365                     // We intercepted and processed the key down event
 366                     return;
 367                 }
 368             }
 369             return;
 370         }
 371         case KeyRelease:
 372         {
 373             if (win && !win->IsEnabled())
 374                 return;
 375
 376             if (win)
 377             {
 378                 wxKeyEvent keyEvent(wxEVT_KEY_UP);
 379                 wxTranslateKeyEvent(keyEvent, win, window, event);
 380
 381                 win->GetEventHandler()->ProcessEvent( keyEvent );
 382             }
 383             return;
 384         }
 385         case PropertyNotify:
 386         {
 387             HandlePropertyChange(_event);
 388             return;
 389         }
 390         case ClientMessage:
 391         {
 392             Atom wm_delete_window = XInternAtom(wxGlobalDisplay(), "WM_DELETE_WINDOW", True);;
 393             Atom wm_protocols = XInternAtom(wxGlobalDisplay(), "WM_PROTOCOLS", True);;
 394
 395             if (event->xclient.message_type == wm_protocols)
 396             {
 397                 if ((Atom) (event->xclient.data.l[0]) == wm_delete_window)
 398                 {
 399                     if (win)
 400                     {
 401                         win->Close(FALSE);
 402                     }
 403                 }
 404             }
 405             return;
 406         }
 407         case ConfigureNotify:
 408         {
 409             if (win)
 410             {
 411                 wxSizeEvent sizeEvent( wxSize(event->xconfigure.width,event->xconfigure.height), win->GetId() );
 412                 sizeEvent.SetEventObject( win );
 413
 414                 win->GetEventHandler()->ProcessEvent( sizeEvent );
 415             }
 416         }
 417         case ResizeRequest:
 418         {
 419             /* Terry Gitnick <terryg@scientech.com> - 1/21/98
 420             * If resize event, don't resize until the last resize event for this
 421             * window is recieved. Prevents flicker as windows are resized.
 422             */
 423
 424             Display *disp = (Display*) wxGetDisplay();
 425             XEvent report;
 426
 427             //  to avoid flicker
 428             report = * event;
 429             while( XCheckTypedWindowEvent (disp, actualWindow, ResizeRequest, &report));
 430
 431             // TODO: when implementing refresh optimization, we can use
 432             // XtAddExposureToRegion to expand the window's paint region.
 433
 434             if (win)
 435             {
 436                 wxSize sz = win->GetSize();
 437                 wxSizeEvent sizeEvent(sz, win->GetId());
 438                 sizeEvent.SetEventObject(win);
 439
 440                 win->GetEventHandler()->ProcessEvent( sizeEvent );
 441             }
 442
 443             return;
 444         }
 445         case Expose:
 446         {
 447             if (win)
 448             {
 449                 win->GetUpdateRegion().Union( event->xexpose.x, event->xexpose.y,
 450                                               event->xexpose.width, event->xexpose.height);
 451                 if (event->xexpose.count == 0)
 452                 {
 453                     win->X11SendPaintEvents();  // TODO let an idle handler do that
 454                 }
 455             }
 456
 457             return;
 458         }
 459         case EnterNotify:
 460         case LeaveNotify:
 461         case ButtonPress:
 462         case ButtonRelease:
 463         case MotionNotify:
 464         {
 465             if (win && !win->IsEnabled())
 466                 return;
 467
 468             if (win)
 469             {
 470                 wxMouseEvent wxevent;
 471                 wxTranslateMouseEvent(wxevent, win, window, event);
 472                 win->GetEventHandler()->ProcessEvent( wxevent );
 473             }
 474             return;
 475         }
 476         case FocusIn:
 477             {
 478                 if (win && event->xfocus.detail != NotifyPointer)
 479                 {
 480                     wxFocusEvent focusEvent(wxEVT_SET_FOCUS, win->GetId());
 481                     focusEvent.SetEventObject(win);
 482                     win->GetEventHandler()->ProcessEvent(focusEvent);
 483                 }
 484                 break;
 485             }
 486         case FocusOut:
 487             {
 488                 if (win && event->xfocus.detail != NotifyPointer)
 489                 {
 490                     wxFocusEvent focusEvent(wxEVT_KILL_FOCUS, win->GetId());
 491                     focusEvent.SetEventObject(win);
 492                     win->GetEventHandler()->ProcessEvent(focusEvent);
 493                 }
 494                 break;
 495             }
 496         case DestroyNotify:
 497             {
 498                 // Do we want to process this (for top-level windows)?
 499                 // But we want to be able to veto closes, anyway
 500                 break;
 501             }
 502         default:
 503         {
 504             break;
 505         }
 506     }
 507 }
 508
 509 // Returns TRUE if more time is needed.
 510 // Note that this duplicates wxEventLoopImpl::SendIdleEvent
 511 // but ProcessIdle may be needed by apps, so is kept.
 512 bool wxApp::ProcessIdle()
 513 {
 514     wxIdleEvent event;
 515     event.SetEventObject(this);
 516     ProcessEvent(event);
 517
 518     return event.MoreRequested();
 519 }
 520
 521 void wxApp::ExitMainLoop()
 522 {
 523     if (m_mainLoop)
 524         m_mainLoop->Exit(0);
 525 }
 526
 527 // Is a message/event pending?
 528 bool wxApp::Pending()
 529 {
 530     return wxEventLoop::GetActive()->Pending();
 531 }
 532
 533 // Dispatch a message.
 534 void wxApp::Dispatch()
 535 {
 536     wxEventLoop::GetActive()->Dispatch();
 537 }
 538
 539 // This should be redefined in a derived class for
 540 // handling property change events for XAtom IPC.
 541 void wxApp::HandlePropertyChange(WXEvent *event)
 542 {
 543     // by default do nothing special
 544     // TODO: what to do for X11
 545     // XtDispatchEvent((XEvent*) event); /* let Motif do the work */
 546 }
 547
 548 void wxApp::OnIdle(wxIdleEvent& event)
 549 {
 550     static bool inOnIdle = FALSE;
 551
 552     // Avoid recursion (via ProcessEvent default case)
 553     if (inOnIdle)
 554         return;
 555
 556     inOnIdle = TRUE;
 557
 558     // If there are pending events, we must process them: pending events
 559     // are either events to the threads other than main or events posted
 560     // with wxPostEvent() functions
 561     // GRG: I have moved this here so that all pending events are processed
 562     //   before starting to delete any objects. This behaves better (in
 563     //   particular, wrt wxPostEvent) and is coherent with wxGTK's current
 564     //   behaviour. Also removed the '#if wxUSE_THREADS' around it.
 565     //  Changed Mar/2000 before 2.1.14
 566
 567     // Flush pending events.
 568     ProcessPendingEvents();
 569
 570     // 'Garbage' collection of windows deleted with Close().
 571     DeletePendingObjects();
 572
 573     // flush the logged messages if any
 574     wxLog *pLog = wxLog::GetActiveTarget();
 575     if ( pLog != NULL && pLog->HasPendingMessages() )
 576         pLog->Flush();
 577
 578     // Send OnIdle events to all windows
 579     bool needMore = SendIdleEvents();
 580
 581     if (needMore)
 582         event.RequestMore(TRUE);
 583
 584     inOnIdle = FALSE;
 585 }
 586
 587 void wxWakeUpIdle()
 588 {
 589     // **** please implement me! ****
 590     // Wake up the idle handler processor, even if it is in another thread...
 591 }
 592
 593
 594 // Send idle event to all top-level windows
 595 bool wxApp::SendIdleEvents()
 596 {
 597     bool needMore = FALSE;
 598
 599     wxWindowList::Node* node = wxTopLevelWindows.GetFirst();
 600     while (node)
 601     {
 602         wxWindow* win = node->GetData();
 603         if (SendIdleEvents(win))
 604             needMore = TRUE;
 605         node = node->GetNext();
 606     }
 607
 608     return needMore;
 609 }
 610
 611 // Send idle event to window and all subwindows
 612 bool wxApp::SendIdleEvents(wxWindow* win)
 613 {
 614     bool needMore = FALSE;
 615
 616     wxIdleEvent event;
 617     event.SetEventObject(win);
 618     win->ProcessEvent(event);
 619
 620     if (event.MoreRequested())
 621         needMore = TRUE;
 622
 623     wxNode* node = win->GetChildren().First();
 624     while (node)
 625     {
 626         wxWindow* win = (wxWindow*) node->Data();
 627         if (SendIdleEvents(win))
 628             needMore = TRUE;
 629
 630         node = node->Next();
 631     }
 632     return needMore ;
 633 }
 634
 635 void wxApp::DeletePendingObjects()
 636 {
 637     wxNode *node = wxPendingDelete.First();
 638     while (node)
 639     {
 640         wxObject *obj = (wxObject *)node->Data();
 641
 642         delete obj;
 643
 644         if (wxPendingDelete.Member(obj))
 645             delete node;
 646
 647         // Deleting one object may have deleted other pending
 648         // objects, so start from beginning of list again.
 649         node = wxPendingDelete.First();
 650     }
 651 }
 652
 653 // Create an application context
 654 bool wxApp::OnInitGui()
 655 {
 656     // Eventually this line will be removed, but for
 657     // now we don't want to try popping up a dialog
 658     // for error messages.
 659     delete wxLog::SetActiveTarget(new wxLogStderr);
 660
 661     if (!wxAppBase::OnInitGui())
 662         return FALSE;
 663
 664
 665     GetMainColormap( wxApp::GetDisplay() );
 666     m_maxRequestSize = XMaxRequestSize( (Display*) wxApp::GetDisplay() );
 667
 668     return TRUE;
 669 }
 670
 671 WXColormap wxApp::GetMainColormap(WXDisplay* display)
 672 {
 673     if (!display) /* Must be called first with non-NULL display */
 674         return m_mainColormap;
 675
 676     int defaultScreen = DefaultScreen((Display*) display);
 677     Screen* screen = XScreenOfDisplay((Display*) display, defaultScreen);
 678
 679     Colormap c = DefaultColormapOfScreen(screen);
 680
 681     if (!m_mainColormap)
 682         m_mainColormap = (WXColormap) c;
 683
 684     return (WXColormap) c;
 685 }
 686
 687 Window wxGetWindowParent(Window window)
 688 {
 689     Window parent, root = 0;
 690     unsigned int noChildren = 0;
 691     Window* children = NULL;
 692     int res = XQueryTree((Display*) wxGetDisplay(), window, & root, & parent,
 693                          & children, & noChildren);
 694     if (children)
 695         XFree(children);
 696     if (res)
 697         return parent;
 698     else
 699         return (Window) 0;
 700 }
 701
 702 void wxExit()
 703 {
 704     int retValue = 0;
 705     if (wxTheApp)
 706         retValue = wxTheApp->OnExit();
 707
 708     wxApp::CleanUp();
 709     /*
 710     * Exit in some platform-specific way. Not recommended that the app calls this:
 711     * only for emergencies.
 712     */
 713     exit(retValue);
 714 }
 715
 716 // Yield to other processes
 717
 718 bool wxApp::Yield(bool onlyIfNeeded)
 719 {
 720     bool s_inYield = FALSE;
 721
 722     if ( s_inYield )
 723     {
 724         if ( !onlyIfNeeded )
 725         {
 726             wxFAIL_MSG( wxT("wxYield called recursively" ) );
 727         }
 728
 729         return FALSE;
 730     }
 731
 732     s_inYield = TRUE;
 733
 734     while (wxTheApp && wxTheApp->Pending())
 735         wxTheApp->Dispatch();
 736
 737     s_inYield = FALSE;
 738
 739     return TRUE;
 740 }
 741
 742 // TODO use XmGetPixmap (?) to get the really standard icons!
 743
 744 // XPM hack: make the arrays const
 745 #define static static const
 746
 747 #include "wx/generic/info.xpm"
 748 #include "wx/generic/error.xpm"
 749 #include "wx/generic/question.xpm"
 750 #include "wx/generic/warning.xpm"
 751
 752 #undef static
 753
 754 wxIcon
 755 wxApp::GetStdIcon(int which) const
 756 {
 757     switch(which)
 758     {
 759         case wxICON_INFORMATION:
 760             return wxIcon(info_xpm);
 761
 762         case wxICON_QUESTION:
 763             return wxIcon(question_xpm);
 764
 765         case wxICON_EXCLAMATION:
 766             return wxIcon(warning_xpm);
 767
 768         default:
 769             wxFAIL_MSG("requested non existent standard icon");
 770             // still fall through
 771
 772         case wxICON_HAND:
 773             return wxIcon(error_xpm);
 774     }
 775 }
 776
 777 void wxApp::OnAssert(const wxChar *file, int line, const wxChar *msg)
 778 {
 779     // While the GUI isn't working that well, just print out the
 780     // message.
 781 #if 0
 782     wxAppBase::OnAssert(file, line, msg);
 783 #else
 784     wxString msg2;
 785     msg2.Printf("At file %s:%d: %s", file, line, msg);
 786     wxLogDebug(msg2);
 787 #endif
 788 }
 789
 790 // ----------------------------------------------------------------------------
 791 // accessors for C modules
 792 // ----------------------------------------------------------------------------
 793
 794 #if 0
 795 extern "C" XtAppContext wxGetAppContext()
 796 {
 797     return (XtAppContext)wxTheApp->GetAppContext();
 798 }
 799 #endif