//BMP格式图片转JPG格式
procedure BMPToJPG(BmpFileName:string);
var
  Jpeg : TJPEGImage;
  Bmp : TBitmap;
begin
  Bmp := TBitmap.Create;
  try
    Bmp.LoadFromFile(BmpFileName);
    Jpeg := TJPEGImage.Create;
    try
      Jpeg.Assign(Bmp);
      Jpeg.Compress;
      //保存图片
      Jpeg.SaveToFile(Form4.SavePictureDialog1.FileName);
    finally
      Jpeg.Free;
    end;
  finally
     Bmp.Free;
  end;
end;

Last modification：August 16th, 2009 at 12:30 pm
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