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unit beispiel;

interface

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

type
  TForm4 = class(TForm)
    Button1: TButton;
    Label1: TLabel;
    Timer1: TTimer;
    procedure Button1Click(Sender: TObject);
    procedure Timer1Timer(Sender: TObject);
  private
    { Private-Deklarationen }
  public
    { Public-Deklarationen }
  end;

var
  Form4: TForm4;
  i,j: integer;

implementation

{$R *.dfm}

procedure TForm4.Button1Click(Sender: TObject); {
var i,j : integer;             }
begin

for i := 0 to  10 do
begin
  j := j + i;
  sleep(50);
end;



end;

procedure TForm4.Timer1Timer(Sender: TObject);
begin
label1.Caption := IntToStr(i);
end;

end.                    

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var
 counter: Integer
[...]
counter:= 10;
[...]
procedure TForm4.Timer1Timer(Sender: TObject);
begin
 Label1.Caption := IntToStr(counter);
 Counter:= Counter - 1;
 If(Counter < 0)then
  Timer1.Enabled:= False;
end;                    

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for i := 0 to  10 do
begin
  j := j + i;
  Application.ProcessMessages;
  sleep(50);
end;