git.sesse.net Git - vlc/blob - plugins/directx/vout_events.c

   1 /*****************************************************************************
   2  * vout_events.c: Windows DirectX video output events handler
   3  *****************************************************************************
   4  * Copyright (C) 2001 VideoLAN
   5  * $Id: vout_events.c,v 1.11 2002/02/19 00:50:19 sam Exp $
   6  *
   7  * Authors: Gildas Bazin <gbazin@netcourrier.com>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  22  *****************************************************************************/
  23
  24
  25 /*****************************************************************************
  26  * Preamble: This file contains the functions related to the creation of
  27  *             a window and the handling of its messages (events).
  28  *****************************************************************************/
  29 #include <errno.h>                                                 /* ENOMEM */
  30 #include <stdlib.h>                                                /* free() */
  31 #include <string.h>                                            /* strerror() */
  32
  33 #include <videolan/vlc.h>
  34
  35 #include "netutils.h"
  36
  37 #include "video.h"
  38 #include "video_output.h"
  39
  40 #include <windows.h>
  41 #include <windowsx.h>
  42 #include <shellapi.h>
  43
  44 #include <ddraw.h>
  45
  46 #include "interface.h"
  47
  48 #include "vout_directx.h"
  49
  50 /*****************************************************************************
  51  * Local prototypes.
  52  *****************************************************************************/
  53 static int  DirectXCreateWindow( vout_thread_t *p_vout );
  54 static void DirectXCloseWindow ( vout_thread_t *p_vout );
  55 static void DirectXUpdateRects( vout_thread_t *p_vout );
  56 static long FAR PASCAL DirectXEventProc ( HWND hwnd, UINT message,
  57                                           WPARAM wParam, LPARAM lParam );
  58
  59 /*****************************************************************************
  60  * DirectXEventThread: Create video window & handle its messages
  61  *****************************************************************************
  62  * This function creates a video window and then enters an infinite loop
  63  * that handles the messages sent to that window.
  64  * The main goal of this thread is to isolate the Win32 PeekMessage function
  65  * because this one can block for a long time.
  66  *****************************************************************************/
  67 void DirectXEventThread( vout_thread_t *p_vout )
  68 {
  69     MSG             msg;
  70
  71     /* Initialisation */
  72
  73     /* Create a window for the video */
  74     /* Creating a window under Windows also initializes the thread's event
  75      * message qeue */
  76     if( DirectXCreateWindow( p_vout ) )
  77     {
  78         intf_ErrMsg( "vout error: can't create window" );
  79         p_vout->p_sys->i_event_thread_status = THREAD_FATAL;
  80         /* signal the creation of the window */
  81         vlc_mutex_lock( &p_vout->p_sys->event_thread_lock );
  82         vlc_cond_signal( &p_vout->p_sys->event_thread_wait );
  83         vlc_mutex_unlock( &p_vout->p_sys->event_thread_lock );
  84         return;
  85     }
  86
  87     /* signal the creation of the window */
  88     p_vout->p_sys->i_event_thread_status = THREAD_READY;
  89     vlc_mutex_lock( &p_vout->p_sys->event_thread_lock );
  90     vlc_cond_signal( &p_vout->p_sys->event_thread_wait );
  91     vlc_mutex_unlock( &p_vout->p_sys->event_thread_lock );
  92
  93     /* Main loop */
  94     /* GetMessage will sleep if there's no message in the queue */
  95     while( GetMessage( &msg, p_vout->p_sys->hwnd, 0, 0 ) )
  96     {
  97
  98         /* Check if we are asked to exit */
  99         if( p_vout->b_die || p_vout->p_sys->b_event_thread_die )
 100             break;
 101
 102         switch( msg.message )
 103         {
 104
 105         case WM_MOUSEMOVE:
 106             if( p_vout->p_sys->b_cursor )
 107             {
 108                 if( p_vout->p_sys->b_cursor_autohidden )
 109                 {
 110                     p_vout->p_sys->b_cursor_autohidden = 0;
 111                     p_vout->p_sys->i_lastmoved = mdate();
 112                     ShowCursor( TRUE );
 113                 }
 114                 else
 115                 {
 116                     p_vout->p_sys->i_lastmoved = mdate();
 117                 }
 118             }
 119             DispatchMessage(&msg);
 120             break;
 121
 122         case WM_RBUTTONUP:
 123             intf_WarnMsg( 4, "vout: vout_Manage WM_RBUTTONUP" );
 124             p_main->p_intf->b_menu_change = 1;
 125             break;
 126
 127         case WM_KEYDOWN:
 128             /* the key events are first processed here. The next
 129              * message processed by this main message loop will be the
 130              * char translation of the key event */
 131             intf_WarnMsg( 3, "vout: vout_Manage WM_KEYDOWN" );
 132             switch( msg.wParam )
 133             {
 134             case VK_ESCAPE:
 135             case VK_F12:
 136                 /* exit application */
 137                 p_main->p_intf->b_die = 1;
 138                 break;
 139             }
 140             TranslateMessage(&msg);
 141             break;
 142
 143         case WM_CHAR:
 144             intf_WarnMsg( 3, "vout: vout_Manage WM_CHAR" );
 145             switch( msg.wParam )
 146             {
 147             case 'q':
 148             case 'Q':
 149                 /* exit application */
 150                 p_main->p_intf->b_die = 1;
 151                 break;
 152
 153             case 'f':                            /* switch to fullscreen */
 154             case 'F':
 155                 p_vout->p_sys->i_changes |= VOUT_FULLSCREEN_CHANGE;
 156                 break;
 157
 158             case 'c':                                /* toggle grayscale */
 159             case 'C':
 160                 p_vout->b_grayscale = ! p_vout->b_grayscale;
 161                 p_vout->p_sys->i_changes |= VOUT_GRAYSCALE_CHANGE;
 162                 break;
 163
 164             case 'i':                                     /* toggle info */
 165             case 'I':
 166                 p_vout->b_info = ! p_vout->b_info;
 167                 p_vout->p_sys->i_changes |= VOUT_INFO_CHANGE;
 168                 break;
 169
 170             case 's':                                  /* toggle scaling */
 171             case 'S':
 172                 p_vout->b_scale = ! p_vout->b_scale;
 173                 p_vout->p_sys->i_changes |= VOUT_SCALE_CHANGE;
 174                 break;
 175
 176             case ' ':                                /* toggle interface */
 177                 p_vout->b_interface = ! p_vout->b_interface;
 178                 p_vout->p_sys->i_changes |= VOUT_INTF_CHANGE;
 179                 break;
 180
 181             case '0': network_ChannelJoin( 0 ); break;
 182             case '1': network_ChannelJoin( 1 ); break;
 183             case '2': network_ChannelJoin( 2 ); break;
 184             case '3': network_ChannelJoin( 3 ); break;
 185             case '4': network_ChannelJoin( 4 ); break;
 186             case '5': network_ChannelJoin( 5 ); break;
 187             case '6': network_ChannelJoin( 6 ); break;
 188             case '7': network_ChannelJoin( 7 ); break;
 189             case '8': network_ChannelJoin( 8 ); break;
 190             case '9': network_ChannelJoin( 9 ); break;
 191
 192             default:
 193                 break;
 194             }
 195
 196         default:
 197             /* Messages we don't handle directly are dispatched to the
 198              * window procedure */
 199 #if 0
 200             intf_WarnMsg( 5, "vout: vout_Manage unhandled message",
 201                           msg.message );
 202 #endif
 203             TranslateMessage(&msg);
 204             DispatchMessage(&msg);
 205             break;
 206
 207         } /* End Switch */
 208
 209     } /* End Main loop */
 210
 211     if( msg.message == WM_QUIT )
 212     {
 213         intf_WarnMsg( 3, "vout: DirectXEventThread WM_QUIT... "
 214                       "shouldn't happen!!" );
 215         p_vout->p_sys->hwnd = NULL; /* Window already destroyed */
 216     }
 217
 218     intf_WarnMsg( 3, "vout: DirectXEventThread Terminating" );
 219
 220     /* clear the changes formerly signaled */
 221     p_vout->p_sys->i_changes = 0;
 222
 223     DirectXCloseWindow( p_vout );
 224 }
 225
 226
 227 /* following functions are local */
 228
 229 /*****************************************************************************
 230  * DirectXCreateWindow: create a window for the video.
 231  *****************************************************************************
 232  * Before creating a direct draw surface, we need to create a window in which
 233  * the video will be displayed. This window will also allow us to capture the
 234  * events.
 235  *****************************************************************************/
 236 static int DirectXCreateWindow( vout_thread_t *p_vout )
 237 {
 238     HINSTANCE  hInstance;
 239     WNDCLASSEX wc;                                /* window class components */
 240     RECT       rect_window;
 241     COLORREF   colorkey;
 242     HDC        hdc;
 243     HICON      vlc_icon = NULL;
 244     char       vlc_path[_MAX_PATH+1];
 245
 246     intf_WarnMsg( 3, "vout: DirectXCreateWindow" );
 247
 248     /* get this module's instance */
 249     hInstance = GetModuleHandle(NULL);
 250
 251     /* Create a BRUSH that will be used by Windows to paint the window
 252      * background.
 253      * This window background is important for us as it will be used by the
 254      * graphics card to display the overlay.
 255      * This is why we carefully choose the color for this background, the goal
 256      * being to choose a color which isn't complete black but nearly. We
 257      * obviously don't want to use black as a colorkey for the overlay because
 258      * black is one of the most used color and thus would give us undesirable
 259      * effects */
 260     /* the first step is to find the colorkey we want to use. The difficulty
 261      * comes from the potential dithering (depends on the display depth)
 262      * because we need to know the real RGB value of the chosen colorkey */
 263     hdc = GetDC( NULL );
 264     for( colorkey = 5; colorkey < 0xFF /*all shades of red*/; colorkey++ )
 265     {
 266         if( colorkey == GetNearestColor( hdc, colorkey ) )
 267           break;
 268     }
 269     intf_WarnMsg(3,"vout: DirectXCreateWindow background color:%i", colorkey);
 270
 271     /* create the actual brush */
 272     p_vout->p_sys->hbrush = CreateSolidBrush(colorkey);
 273     p_vout->p_sys->i_rgb_colorkey = (int)colorkey;
 274
 275     /* Get the current size of the display and its colour depth */
 276     p_vout->p_sys->rect_display.right = GetDeviceCaps( hdc, HORZRES );
 277     p_vout->p_sys->rect_display.bottom = GetDeviceCaps( hdc, VERTRES );
 278     p_vout->p_sys->i_display_depth = GetDeviceCaps( hdc, BITSPIXEL );
 279     intf_WarnMsg( 3, "vout: Screen dimensions %ix%i colour depth %i",
 280                   p_vout->p_sys->rect_display.right,
 281                   p_vout->p_sys->rect_display.bottom,
 282                   p_vout->p_sys->i_display_depth );
 283
 284     ReleaseDC( p_vout->p_sys->hwnd, hdc );
 285
 286     /* Get the Icon from the main app */
 287     if( GetModuleFileName( NULL, vlc_path, _MAX_PATH ) )
 288     {
 289         vlc_icon = ExtractIcon( hInstance, vlc_path, 0 );
 290     }
 291     if( !vlc_icon )
 292         vlc_icon = LoadIcon( NULL, IDI_APPLICATION );
 293
 294
 295     /* fill in the window class structure */
 296     wc.cbSize        = sizeof(WNDCLASSEX);
 297     wc.style         = 0;                               /* no special styles */
 298     wc.lpfnWndProc   = (WNDPROC)DirectXEventProc;           /* event handler */
 299     wc.cbClsExtra    = 0;                             /* no extra class data */
 300     wc.cbWndExtra    = 0;                            /* no extra window data */
 301     wc.hInstance     = hInstance;                                /* instance */
 302     wc.hIcon         = CopyIcon( vlc_icon );            /* load the vlc icon */
 303     wc.hCursor       = LoadCursor(NULL, IDC_ARROW); /* load a default cursor */
 304     wc.hbrBackground = p_vout->p_sys->hbrush;            /* background color */
 305     wc.lpszMenuName  = NULL;                                      /* no menu */
 306     wc.lpszClassName = "VLC DirectX";                 /* use a special class */
 307     wc.hIconSm       = CopyIcon( vlc_icon );            /* load the vlc icon */
 308
 309     /* register the window class */
 310     if (!RegisterClassEx(&wc))
 311     {
 312         /* Check why it failed. If it's because one already exists then fine */
 313         WNDCLASS wndclass;
 314         if( !GetClassInfo( hInstance, "VLC DirectX", &wndclass ) )
 315         {
 316             intf_ErrMsg( "vout: DirectXCreateWindow RegisterClass FAILED" );
 317             return (1);
 318         }
 319     }
 320
 321     /* when you create a window you give the dimensions you wish it to have.
 322      * Unfortunatly these dimensions will include the borders and title bar.
 323      * We use the following function to find out the size of the window
 324      * corresponding to the useable surface we want */
 325     rect_window.top    = 10;
 326     rect_window.left   = 10;
 327     rect_window.right  = rect_window.left + p_vout->p_sys->i_window_width;
 328     rect_window.bottom = rect_window.top + p_vout->p_sys->i_window_height;
 329     AdjustWindowRect( &rect_window, WS_OVERLAPPEDWINDOW|WS_SIZEBOX, 0 );
 330
 331     /* create the window */
 332     p_vout->p_sys->hwnd = CreateWindow("VLC DirectX",/* name of window class */
 333                     "VLC DirectX",                  /* window title bar text */
 334                     WS_OVERLAPPEDWINDOW
 335                     | WS_SIZEBOX,               /* window style */
 336                     CW_USEDEFAULT,                   /* default X coordinate */
 337                     0,                               /* default Y coordinate */
 338                     rect_window.right - rect_window.left,    /* window width */
 339                     rect_window.bottom - rect_window.top,   /* window height */
 340                     NULL,                                /* no parent window */
 341                     NULL,                          /* no menu in this window */
 342                     hInstance,            /* handle of this program instance */
 343                     NULL);                        /* no additional arguments */
 344
 345     if (p_vout->p_sys->hwnd == NULL) {
 346         intf_WarnMsg( 3, "vout: DirectXCreateWindow create window FAILED" );
 347         return (1);
 348     }
 349
 350     /* store a p_vout pointer into the window local storage (for later use
 351      * in DirectXEventProc).
 352      * We need to use SetWindowLongPtr when it is available in mingw */
 353     SetWindowLong( p_vout->p_sys->hwnd, GWL_USERDATA, (LONG)p_vout );
 354
 355     /* now display the window */
 356     ShowWindow(p_vout->p_sys->hwnd, SW_SHOW);
 357
 358     return ( 0 );
 359 }
 360
 361 /*****************************************************************************
 362  * DirectXCloseWindow: close the window created by DirectXCreateWindow
 363  *****************************************************************************
 364  * This function returns all resources allocated by DirectXCreateWindow.
 365  *****************************************************************************/
 366 static void DirectXCloseWindow( vout_thread_t *p_vout )
 367 {
 368     intf_WarnMsg( 3, "vout: DirectXCloseWindow" );
 369     if( p_vout->p_sys->hwnd != NULL )
 370     {
 371         DestroyWindow( p_vout->p_sys->hwnd);
 372         p_vout->p_sys->hwnd = NULL;
 373     }
 374
 375     /* We don't unregister the Window Class because it could lead to race
 376      * conditions and it will be done anyway by the system when the app will
 377      * exit */
 378
 379     /* free window background brush */
 380     if( p_vout->p_sys->hbrush != NULL )
 381     {
 382         DeleteObject( p_vout->p_sys->hbrush );
 383         p_vout->p_sys->hbrush = NULL;
 384     }
 385 }
 386
 387 /*****************************************************************************
 388  * DirectXUpdateRects:
 389  *****************************************************************************
 390  * This function is called when the window position and size is changed, and
 391  * its job is to update the source and destination RECTs used to display the
 392  * picture.
 393  *****************************************************************************/
 394 static void DirectXUpdateRects( vout_thread_t *p_vout )
 395 {
 396     int i_width, i_height, i_x, i_y;
 397
 398 #define rect_src p_vout->p_sys->rect_src
 399 #define rect_src_clipped p_vout->p_sys->rect_src_clipped
 400 #define rect_dest p_vout->p_sys->rect_dest
 401 #define rect_dest_clipped p_vout->p_sys->rect_dest_clipped
 402 #define rect_display p_vout->p_sys->rect_display
 403
 404     vout_PlacePicture( p_vout, p_vout->p_sys->i_window_width,
 405                        p_vout->p_sys->i_window_height,
 406                        &i_x, &i_y, &i_width, &i_height );
 407
 408     /* Destination image position and dimensions */
 409     rect_dest.left = i_x + p_vout->p_sys->i_window_x;
 410     rect_dest.top = i_y + p_vout->p_sys->i_window_y;
 411     rect_dest.right = rect_dest.left + i_width;
 412     rect_dest.bottom = rect_dest.top + i_height;
 413
 414
 415     /* UpdateOverlay directdraw function doesn't automatically clip to the
 416      * display size so we need to do it otherwise it will fails */
 417
 418     /* Clip the destination window */
 419     IntersectRect( &rect_dest_clipped, &rect_dest, &rect_display );
 420
 421     intf_WarnMsg( 3, "vout: DirectXUpdateRects image_dst_clipped coords:"
 422                   " %i,%i,%i,%i",
 423                   rect_dest_clipped.left, rect_dest_clipped.top,
 424                   rect_dest_clipped.right, rect_dest_clipped.bottom);
 425
 426     /* the 2 following lines are to fix a bug when clicking on the desktop */
 427     if( (rect_dest_clipped.right - rect_dest_clipped.left)==0 ||
 428         (rect_dest_clipped.bottom - rect_dest_clipped.top)==0 )
 429     {
 430         SetRectEmpty( &rect_src_clipped );
 431         return;
 432     }
 433
 434     /* src image dimensions */
 435     rect_src.left = 0;
 436     rect_src.top = 0;
 437     rect_src.right = p_vout->render.i_width;
 438     rect_src.bottom = p_vout->render.i_height;
 439
 440     /* Clip the source image */
 441     rect_src_clipped.left = (rect_dest_clipped.left - rect_dest.left) *
 442       p_vout->render.i_width / (rect_dest.right - rect_dest.left);
 443     rect_src_clipped.right = p_vout->render.i_width -
 444       (rect_dest.right - rect_dest_clipped.right) * p_vout->render.i_width /
 445       (rect_dest.right - rect_dest.left);
 446     rect_src_clipped.top = (rect_dest_clipped.top - rect_dest.top) *
 447       p_vout->render.i_height / (rect_dest.bottom - rect_dest.top);
 448     rect_src_clipped.bottom = p_vout->render.i_height -
 449       (rect_dest.bottom - rect_dest_clipped.bottom) * p_vout->render.i_height /
 450       (rect_dest.bottom - rect_dest.top);
 451
 452     intf_WarnMsg( 3, "vout: DirectXUpdateRects image_src_clipped"
 453                   " coords: %i,%i,%i,%i",
 454                   rect_src_clipped.left, rect_src_clipped.top,
 455                   rect_src_clipped.right, rect_src_clipped.bottom);
 456
 457 #undef rect_src
 458 #undef rect_src_clipped
 459 #undef rect_dest
 460 #undef rect_dest_clipped
 461 #undef rect_display
 462 }
 463
 464 /*****************************************************************************
 465  * DirectXEventProc: This is the window event processing function.
 466  *****************************************************************************
 467  * On Windows, when you create a window you have to attach an event processing
 468  * function to it. The aim of this function is to manage "Queued Messages" and
 469  * "Nonqueued Messages".
 470  * Queued Messages are those picked up and retransmitted by vout_Manage
 471  * (using the GetMessage and DispatchMessage functions).
 472  * Nonqueued Messages are those that Windows will send directly to this
 473  * procedure (like WM_DESTROY, WM_WINDOWPOSCHANGED...)
 474  *****************************************************************************/
 475 static long FAR PASCAL DirectXEventProc( HWND hwnd, UINT message,
 476                                          WPARAM wParam, LPARAM lParam )
 477 {
 478     vout_thread_t *p_vout;
 479
 480     switch( message )
 481     {
 482
 483     case WM_WINDOWPOSCHANGED:
 484         {
 485         RECT     rect_window;
 486         POINT    point_window;
 487
 488         p_vout = (vout_thread_t *)GetWindowLong( hwnd, GWL_USERDATA );
 489
 490         /* update the window position */
 491         point_window.x = 0;
 492         point_window.y = 0;
 493         ClientToScreen( hwnd, &point_window );
 494         p_vout->p_sys->i_window_x = point_window.x;
 495         p_vout->p_sys->i_window_y = point_window.y;
 496
 497         /* update the window size */
 498         GetClientRect( hwnd, &rect_window );
 499         p_vout->p_sys->i_window_width = rect_window.right;
 500         p_vout->p_sys->i_window_height = rect_window.bottom;
 501         intf_WarnMsg( 3, "vout: WinProc WM_WINDOWPOSCHANGED %i,%i,%i,%i",
 502                       p_vout->p_sys->i_window_x, p_vout->p_sys->i_window_y,
 503                       p_vout->p_sys->i_window_width,
 504                       p_vout->p_sys->i_window_height );
 505
 506         DirectXUpdateRects( p_vout );
 507         if( p_vout->p_sys->b_using_overlay &&
 508             !p_vout->p_sys->b_event_thread_die )
 509             DirectXUpdateOverlay( p_vout );
 510
 511         /* signal the size change */
 512         p_vout->p_sys->i_changes |= VOUT_SIZE_CHANGE;
 513
 514         return 0;
 515         }
 516         break;
 517
 518     case WM_ACTIVATE:
 519         intf_WarnMsg( 4, "vout: WinProc WM_ACTIVE" );
 520         break;
 521
 522     case WM_CREATE:
 523         intf_WarnMsg( 4, "vout: WinProc WM_CREATE" );
 524         break;
 525
 526     /* the user wants to close the window */
 527     case WM_CLOSE:
 528         intf_WarnMsg( 4, "vout: WinProc WM_CLOSE" );
 529         /* exit application */
 530         p_main->p_intf->b_die = 1;
 531         return 0;
 532         break;
 533
 534     /* the window has been closed so shut down everything now */
 535     case WM_DESTROY:
 536         intf_WarnMsg( 4, "vout: WinProc WM_DESTROY" );
 537         /* just destroy the window */
 538         PostQuitMessage( 0 );
 539         return 0;
 540         break;
 541
 542     case WM_SYSCOMMAND:
 543         switch (wParam)
 544         {
 545             case SC_SCREENSAVE:                     /* catch the screensaver */
 546             case SC_MONITORPOWER:              /* catch the monitor turn-off */
 547             intf_WarnMsg( 3, "vout: WinProc WM_SYSCOMMAND" );
 548             return 0;                      /* this stops them from happening */
 549         }
 550         break;
 551
 552 #if 0
 553     case WM_PAINT:
 554         intf_WarnMsg( 4, "vout: WinProc WM_PAINT" );
 555         break;
 556 #endif
 557
 558     case WM_ERASEBKGND:
 559         p_vout = (vout_thread_t *)GetWindowLong( hwnd, GWL_USERDATA );
 560         if( !p_vout->p_sys->b_using_overlay )
 561         {
 562             /* We want to eliminate unnecessary background redraws which create
 563              * an annoying flickering */
 564             int i_width, i_height, i_x, i_y;
 565             RECT rect_temp;
 566             GetClipBox( (HDC)wParam, &rect_temp );
 567 #if 0
 568             intf_WarnMsg( 4, "vout: WinProc WM_ERASEBKGND %i,%i,%i,%i",
 569                           rect_temp.left, rect_temp.top,
 570                           rect_temp.right, rect_temp.bottom );
 571 #endif
 572             vout_PlacePicture( p_vout, p_vout->p_sys->i_window_width,
 573                                p_vout->p_sys->i_window_height,
 574                                &i_x, &i_y, &i_width, &i_height );
 575             ExcludeClipRect( (HDC)wParam, i_x, i_y,
 576                              i_x + i_width, i_y + i_height );
 577         }
 578         break;
 579
 580 #if 0
 581     default:
 582         intf_WarnMsg( 4, "vout: WinProc WM Default %i", message );
 583         break;
 584 #endif
 585     }
 586
 587     return DefWindowProc(hwnd, message, wParam, lParam);
 588 }