unit Unit1; 

{$mode objfpc}{$H+}

interface

uses
  Classes, SysUtils, FileUtil, LResources, Forms, Controls, Graphics, Dialogs,
  ExtCtrls, StdCtrls;

type

  { TForm1 }

  TForm1 = class(TForm)
    Button1: TButton;
    Edit1: TEdit;
    Edit2: TEdit;

    procedure Button1Click(Sender:TObject);
  private
    { private declarations }
  public
    { public declarations }
  end; 

var
  Form1: TForm1; 

implementation
 procedure TForm1.Button1Click(Sender: TObject);
 var i : longint;

 begin


   i:=1;
   Edit1.text:= ' Start';

   Repeat
    i:=i+1;
   until i=1000000000;

   Edit2.text:= 'Ende';

   beep;



  end;




initialization
  {$I unit1.lrs}

end.