The value of CurrentScaleFactor is the maximum of CurrentXScaleFactor and CurrentYScaleFactor. These two values are always the same except when SizeMode is set to ImageViewerSizeMode.Stretch.
For more information, refer to ScaleFactor.
For an example, refer to ScaleFactor.
Target Platforms: 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