Lire la date d'un fichier

procedure TForm1.Button1Click(Sender: TObject);
var
S1 : String;
F1 : File;
FStruct : TOFSTRUCT;
TheDate : TDateTime;
Han1 : Integer;
I : Integer;

begin
if Opendialog1.Execute then begin
S1 := Opendialog1.FileName;
Han1 := OpenFile(PChar(S1), FStruct, OF_SHARE_DENY_NONE);
I := FileGetDate(Han1);
TheDate := FileDateToDateTime(I);
Label1.Caption := DateTimeToStr(TheDate);
lclose(Han1);
end;
end;