unit testform;

interface

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

type
  TForm1 = class(TForm)
    Button1: TButton;
    a: TBitmapActionButton;
    b: TBitmapActionButton;
    procedure Button1Click(Sender: TObject);
    procedure bMouseDown(Sender: TObject; Button: TMouseButton;
      Shift: TShiftState; X, Y: Integer);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;
  btn : tbitmapactionbutton;
implementation

{$R *.DFM}

procedure TForm1.Button1Click(Sender: TObject);
var
x,y : integer;

begin
a.left:=random(width);
a.top:=random(height);

b.left:=random(width);
a.top:=random(height);

if random(2)=1 then a.Visible:=false else a.visible:=true;
if random(2)=1 then b.Visible:=false else b.visible:=true;
end;

procedure TForm1.bMouseDown(Sender: TObject; Button: TMouseButton;
  Shift: TShiftState; X, Y: Integer);
begin
beep;
end;

end.