Horizontal - Rating will fill either Left to Right or Right to Left, depending on FillDirection.
Vertical - Rating will fill either Top to Bottom or Bottom to Top, depending on FillDirection.
'Declaration Public Property Orientation As Orientation
public Orientation Orientation {get; set;}
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2