unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    lblOutput: TLabel;
    procedure FormCreate(Sender: TObject);
  private
    { Private-Deklarationen }
  public
    { Public-Deklarationen }
    procedure ok(Sender: TObject);
  end;

var
  Form1: TForm1;
  btnOK: array[0..9] of TButton;

implementation

{$R *.dfm}

procedure TForm1.FormCreate(Sender: TObject);
var i: byte;
begin
  for i:=0 to 9 do
  begin
    btnOK[i]:=TButton.Create(self);
    with btnOK[i] do
    begin
      Parent:=Form1;
      width:=50;
      Left:=50*i+10;
      Top:=20;
      Caption:=IntToStr(i+1);
      Tag:=i+1;
      Show;
      OnClick:=ok;
    end;
  end;

end;

procedure TForm1.ok(Sender: TObject);
begin
  lblOutput.Caption:=IntToStr(TButton(Sender).Tag);
end;

end.