private void SetDefaultItems()
        {
            RadialControllerConfiguration         radialControllerConfig;
            IRadialControllerConfigurationInterop radialControllerConfigInterop = (IRadialControllerConfigurationInterop)System.Runtime.InteropServices.WindowsRuntime.WindowsRuntimeMarshal.GetActivationFactory(typeof(RadialControllerConfiguration));
            Guid guid = typeof(RadialControllerConfiguration).GetInterface("IRadialControllerConfiguration").GUID;

            radialControllerConfig = radialControllerConfigInterop.GetForWindow(new WindowInteropHelper(this).Handle, ref guid);
            radialControllerConfig.SetDefaultMenuItems(new[] { RadialControllerSystemMenuItemKind.Volume, RadialControllerSystemMenuItemKind.Scroll });
            radialControllerConfig.TrySelectDefaultMenuItem(RadialControllerSystemMenuItemKind.Scroll);
        }
 private void Select_Volume(object sender, RoutedEventArgs e)
 {
     config = RadialControllerConfiguration.GetForCurrentView();
     config.TrySelectDefaultMenuItem(RadialControllerSystemMenuItemKind.Volume);
 }
 private void Select_Volume(object sender, RoutedEventArgs e)
 {
     config = RadialControllerConfiguration.GetForCurrentView();
     config.TrySelectDefaultMenuItem(RadialControllerSystemMenuItemKind.Volume);
 }