uses MMSystem;

// Ac
Procedure OpenDoor;
Begin
mciSendString('Set cdaudio door open', nil, 0, 0);
End;

// Kapat
Procedure CloseDoor;
Begin
mciSendString('Set cdaudio door closed', nil, 0, 0);
End;

//Kullanimi:
procedure TForm1.Button1Click(Sender: TObject);
begin
OpenDoor;
end;

procedure TForm1.Button2Click(Sender: TObject);
begin
Closedoor;
end;