Eigenen style einbauen

[BullsEye]

Delphi-Quellcode:

procedure TForm1.FormMouseDown(Sender: TObject; Button: TMouseButton;
  Shift: TShiftState; X, Y: Integer);
begin
  ReleaseCapture;
  SendMessage(Form1.Handle, wm_SysCommand, $F012, 0);
end;