The region is used to clip the filled area to the percentage of the parent's Infragistics.Win.UIElement.Rect based on the Value, Minimum, and Maximum. The area of the region itself is created based on the IProgressBarInfo.Style of the progress bar.
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, 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