void OnTimer(object sender, EventArgs e)
 {
     Debug.WriteLine($"IsExecScreenSaver => {MoniterPower.IsExecScreenSaver()}");
     if (!MoniterPower.IsExecScreenSaver())
     {
         MoniterPower.ExecScreenSaver();
     }
 }
 private void Button_Click_1(object sender, RoutedEventArgs e)
 {
     MoniterPower.ExecScreenSaver();
 }
 private void Button_Click(object sender, RoutedEventArgs e)
 {
     MoniterPower.PowerOff();
 }