System.Object
   C1.WPF.MediaPlayer.C1MediaChapter
   C1.WPF.MediaPlayer.C1MediaItem
   C1.WPF.MediaPlayer.FallbackConverter
   C1.WPF.MediaPlayer.HoursMinutesSecondsConverter
   C1.WPF.MediaPlayer.InverseToOpacityConverter
   C1.WPF.MediaPlayer.InverseToVisibilityConverter
   C1.WPF.MediaPlayer.TimeSpanConverter
   C1.WPF.MediaPlayer.ToVisibilityConverter
   System.Windows.Threading.DispatcherObject
      System.Windows.DependencyObject
         System.Windows.Media.Visual
            System.Windows.UIElement
               System.Windows.FrameworkElement
                  System.Windows.Controls.Control
                     C1.WPF.MediaPlayer.C1MediaPlayer
                     System.Windows.Controls.ContentControl
                        System.Windows.Controls.UserControl
                           C1.WPF.MediaPlayer.TemplateControl
                     System.Windows.Controls.Primitives.RangeBase
                        C1.WPF.MediaPlayer.C1MoveToPointSlider

Reference

C1.WPF.MediaPlayer.4.6.2 Assembly