unit Unit1; {$mode objfpc}{$H+} interface uses Classes, SysUtils, FileUtil, ScrollingText, Forms, Controls, Graphics, Dialogs, Buttons, StdCtrls; type { TForm1 } TForm1 = class(TForm) BitBtn1: TBitBtn; Button1: TButton; ScrollingText1: TScrollingText; procedure Button1Click(Sender: TObject); private { private declarations } public { public declarations } end; var Form1: TForm1; implementation {$R *.lfm} resourcestring scrolltext='Hello'; { TForm1 } procedure TForm1.Button1Click(Sender: TObject); begin ScrollingText1.Active:=NOT ScrollingText1.Active; end; end.