unit main;

interface

uses

  Windows, Messages, SysUtils, Classes, Graphics, Controls,
  Forms, Dialogs, ExtCtrls, StdCtrls;

type

  TForm1 = class(TForm)
    Button1: TButton;
    Image1: TImage;
    Image2: TImage;
    procedure Button1Click(Sender: TObject);
    procedure FormCreate(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var

  Form1: TForm1;

implementation

{$R *.DFM}

procedure TForm1.Button1Click(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(Application.ExeName)
    + 'myfile.bmp');
end;

procedure TForm1.FormCreate(Sender: TObject);
begin

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

end.