[NumLock]

Код:

unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    Label1: TLabel;
    Button1: TButton;
    procedure FormKeyPress(Sender: TObject; var Key: Char);
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.FormKeyPress(Sender: TObject; var Key: Char);
begin
  if Key=#27 then Tag:=1;
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
  while Tag=0 do
  begin
    Label1.Caption:=IntToStr(Label1.Tag);
    Label1.Tag:=Label1.Tag+1;
    Application.ProcessMessages;
  end;
  Close;
end;

end.

http://data.cod.ru/70222