Opens the DrawingGroup in order to populate its Children. This method enables you to append additional Children to this DrawingGroup.
public DrawingContext Append()
You must close the DrawingContext before you can render this DrawingGroup.
Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.