public MainWindow()
{
InitializeComponent();
this.Closing += MainWindow_Closing;
DataContext = this;
MonitorPower = new MonitorPower();
PowershellFunctions = new Webcam();
PowershellFunctions.CreateFiles();
bool isEmpty = PowershellFunctions.isEmpty();
btnWebcam.IsChecked = (isEmpty == true ? false : true);
brightness = new Brightness();
Task task1 = setRadios();
MySlider.Value = brightness.getBrightness();
txtBrightness.Text = MySlider.Value.ToString();
}