tCount) *
      sizeof(RGBQUAD);
   
   //设置位图信息头结构
   GetObject(hBitmap, sizeof(BITMAP), (LPSTR)&Bitmap);
   bi.biSize            = sizeof(BITMAPINFOHEADER);
   bi.biWidth           = Bitmap.bmWidth;
   bi.biHeight          = Bitmap.bmHeight;
   bi.biPlanes          = 1;
   bi.biBitCount         = wBitCount;
   bi.biCompression      = BI_RGB;
   bi.biSizeImage        = 0;
   bi.biXPelsPerMeter     = 0;
   bi.biYPelsPerMeter     = 0;
   bi.biClrUsed         = 0;
   bi.biClrImportant      = 0;

   dwBmBitsSize = ((Bitmap.bmWidth *
    wBitCount+31)/32)* 4
 *Bitmap.bmHeight ;
   //为位图内容分配内存
   hDib  = GlobalAlloc(GHND,dwBmBitsSize+
dwPaletteSize+sizeof(BITMAPINFOHEADER));
   lpbi = (LPBITMAPINFOHEADER)GlobalLock(hDib);
   *lpbi = bi;
   // 处理调色板   
   hPal = GetStockObject(DEFAULT_PALETTE);
   if (hPal)
   {
      hDC  = GetDC(NULL);
      hOldPal = SelectPalette(hDC, hPal, FALSE);
      RealizePalette(hDC);
   }
   // 获取该调色板下新的像素值
   GetDIBits(hDC, hBitmap, 0, (UINT) Bitmap.bmHeight,
 (LPSTR)lpbi + sizeof(BITMAPINFOHEADER)
    +dwPaletteSize,
 (BITMAPINFOHEADER *)
    lpbi, DIB_RGB_COLORS);
   //恢复调色板   
   if (hOldPal)
   {
      SelectPalette(hDC, hOldPal, TRUE);
      RealizePalette(hDC);
      ReleaseDC(NULL, hDC);
   }
   //创建位图文件    
fh = CreateFile(lpFileName, GENERIC_WRITE,
0, NULL, CREATE_ALWAYS,
         FILE_ATTRIBUTE_NORMAL | FILE_
         FLAG_SEQUENTIAL_SCAN, NULL);
   if (fh == INVALID_HANDLE_VALUE)
      return FALSE;
   // 设置位图文件头
   bmfHdr.bfType = 0x4D42;  // "BM"
dwDIBSize&nbs