...die Bildschirmschoner Wartezeit ermitteln?

function GetScreenSaverTimeout: Integer;
begin
  SystemParametersInfo(SPI_GETSCREENSAVETIMEOUT, 0, @Result, 0);
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
  ShowMessage(IntToStr(GetScreenSaverTimeout) + ' Sec.');
end;