Streamproblem

[Spurius]

Hallo,
wie kann ich bei folgendem Code das Record mit den Daten aus dem Stream füllen?

Delphi-Quellcode:

unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    Button1: TButton;
    Button2: TButton;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
  private
    { Private-Deklarationen }
  public
    { Public-Deklarationen }
  end;
 type
  TTest = record
   a, b, c: integer;
  end;
var
  Form1: TForm1;
  Stream: TMemoryStream;
implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
var Test: TTest;

begin
 Test.a := 1;
 Test.b := 2;
 Test.c := 3;
 Stream := TMemoryStream.Create;
 Stream.WriteBuffer(Test, Sizeof(Test));
end;

procedure TForm1.Button2Click(Sender: TObject);
var test2: TTest;
begin
 Stream.Position := 0;
 Stream.SaveToFile('c:/hm.txt');

end;
end.

Gruß
Spurius