//Листинг 6. 12. Чтение данных из проецируемой области памяти

LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
   PAINTSTRUCT ps;
   HDC hdc;
   static HANDLE hFileMemory;
   static int *p;
   int x, y, *q;
   TCHAR str[10];
   switch (message)
   {
   case WM_CREATE:
      hFileMemory = OpenFileMapping(FILE_MAP_READ | FILE_MAP_WRITE,
                             FALSE, _T("Shared"));
      if (hFileMemory == NULL) DestroyWindow(hWnd);
      else p = (int*)MapViewOfFile(hFileMemory, FILE_MAP_READ|
                            FILE_MAP_WRITE, 0, 0, 0);
      break;
   case WM_COMMAND:
      switch (LOWORD(wParam))
      {
      case IDM_EXIT: DestroyWindow(hWnd); break;
      default: return DefWindowProc(hWnd, message, wParam, lParam);
      }
      break;
      case WM_PAINT:
        hdc = BeginPaint(hWnd, &ps);
        for (y = 0, q = p; y < 300; y += 30)
            for (x = 0; x < 300; x += 30, q++)
            {
               _itot(*q, str, 10);
               TextOut(hdc, x, y, str, _tcslen(str));
            }
         EndPaint(hWnd, &ps);
         break;
      case WM_DESTROY: PostQuitMessage(0); break;
      default: return DefWindowProc(hWnd, message, wParam, lParam);
   }
   return 0;
}