'Declaration Public Class UnknownShape Inherits WorksheetShapeWithText
public class UnknownShape : WorksheetShapeWithText
This class is used for round-tripping purposes, so unsupported shapes which have been loaded can be saved back out with the workbook. The class allows the unsupported shapes to be identified in shape collections so they can be removed. This shape will become obsolete in future versions when all shape types are supported.
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