delphi 把一个ICO转换为BMP

（1）方法1

var

  Icon  : TIcon;

  Bitmap : TBitmap;

begin

   Icon  := TIcon.Create;

   Bitmap := TBitmap.Create;

   Icon.LoadFromFile('c:\picture.ico'); //Load an ICO

from File

   Bitmap.Width := Icon.Width;

   Bitmap.Height := Icon.Height;

   Bitmap.Canvas.Draw(0, 0, Icon );

   Bitmap.SaveToFile('c:\picture.bmp'); //Convert ICO to

BMP!

   Icon.Free;

   Bitmap.Free;

end;

（2）方法2

procedure TForm1.ConvertClick(Sender: TObject);

var

  winDC, srcdc, destdc : HDC;

  oldBitmap : HBitmap;

  iinfo : TICONINFO;

begin

 GetIconInfo(Image1.Picture.Icon.Handle, iinfo);

 WinDC := getDC(handle);

 srcDC := CreateCompatibleDC(WinDC);

 destDC := CreateCompatibleDC(WinDC);

 oldBitmap := SelectObject(destDC, iinfo.hbmColor);

 oldBitmap := SelectObject(srcDC, iinfo.hbmMask);

 BitBlt(destdc, 0, 0,

Image1.picture.icon.width,Image1.picture.icon.height,srcdc,

0, 0, SRCPAINT);

 Image2.picture.bitmap.handle := SelectObject(destDC,

oldBitmap);

 DeleteDC(destDC);

 DeleteDC(srcDC);

 DeleteDC(WinDC);

 image2.Picture.Bitmap.savetofile(ExtractFilePath(Applicat

ion.ExeName)+ 'myfile.bmp');

end;

procedure TForm1.FormCreate(Sender: TObject);

begin

 image1.picture.icon.loadfromfile('c:\myicon.ico');

end;