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Text File  |  1991-01-29  |  2KB  |  119 lines
  1.  
  2.  
  3. long FAR PASCAL ExampleWndProc( hWnd, uMsg, wParam, lParam)
  4. HWND        hWnd;
  5. unsigned uMsg; 
  6. WORD        wParam; 
  7. LONG        lParam;
  8. { 
  9. LONG lReply; 
  10. RECT rRect;
  11.  
  12. if ( NW_MessageFilter( hWnd, message, wParam, lParam (LONG FAR *) &lReply) )
  13.     return( lReply);
  14.  
  15. switch ( message)
  16.     {
  17.     
  18.     case WM_PAINT:
  19.         ...
  20.         /* normal paint processing */
  21.         ...
  22.         break;
  23.  
  24.     case WM_COMMAND:
  25.         switch ( wParam)
  26.             {
  27.             case WM_CLOSE:
  28.                 ShowWindow( hWnd, SW_HIDE);
  29.                 UpdateWindow( hWnd);
  30.                 GetWindowRect( hWnd, (LPRECT) rRect);
  31.                 OMF_Closing (ghOMF, (LPRECT) rRect);
  32.                 break;
  33.  
  34.             /* other menu command processing */
  35.             ...
  36.             }
  37.  
  38.     case WM_SYSCOMMAND:
  39.         switch ( wParam & 0xFFF0)
  40.             {
  41.             case SC_MAXIMIZE:
  42.                 if ( isZoomed( hWnd))
  43.                     NW_Restore( hWnd);
  44.                 else
  45.                     NW_Maximize( hWnd);
  46.                 break;
  47.  
  48.             case SC_RESTORE:
  49.                 NW_Restore( hWnd);
  50.                 break;
  51.             }
  52.         break;
  53.  
  54.     case WM_OMF:
  55.         return( MessageFromOMF( hWnd, wParam, lParam) );
  56.  
  57.     default:
  58.         return( DefWindowProc( hWnd, message, wParam, lParam);
  59.     }
  60. return( 0L);
  61. }
  62.  
  63. long PASCAL MessageFromOMF( hWnd, wParam, lParam)
  64. HWND     hWnd;
  65. WORD     wParam;
  66. LONG        lParam;
  67. {
  68. RECT rRect;
  69.  
  70. switch( wParam)
  71.     {
  72.     case CREATE_OMF:
  73.         ...
  74.         /* Initialize object. Read in data (gFile has file root) */
  75.         ...
  76.         return( CO_OK);    /* CO_ERROR if failed */
  77.  
  78.     case OPEN:
  79.         ...
  80.         /* set title text, other window init */
  81.         ...
  82.         GetWindowRect( hWnd, (LPRECT) &rRect);
  83.         OMF_Opening( ghOMF, (LPRECT) &rRect);
  84.         NW_Restore( hWnd);
  85.         UpdateWindow( hWnd);
  86.         break;
  87.  
  88.     case HAS_METHOD:
  89.         switch( (unsigned) LOWORD( lParam))
  90.             {
  91.             case CREATE_OMF:
  92.             case OPEN:
  93.             case TERMINATE:
  94.             case DIE_PLEASE:
  95.                 return( METHOD_PRESENT);
  96.  
  97.             default:
  98.                 return( NO_METHOD);
  99.             }
  100.  
  101.     case TERMINATE:
  102.         ...
  103.         /* save data, state, etc. */
  104.         ...
  105.         OMF_Term( ghOMF);
  106.         return( TERMINATE_OK);
  107.  
  108.     case DIE_PLEASE:
  109.         DestroyWindow( hWnd);
  110.         PostQuitMessage( 0);
  111.         break;
  112.  
  113.     }
  114. return( 0L);
  115. }
  116. ...
  117. /* end of code fragment */
  118.  
  119.