Share Email Facebook Twitter LinkedIn FilledRegion.IsMasking Property Indicates whether this element is a 'Filled Region or a 'Masking Region'. Namespace: Autodesk.Revit.DBAssembly: RevitAPI (in RevitAPI.dll) Version: 26.2.0.0 (26.2.0.0) Syntax C# public bool IsMasking { get; }Property ValueBoolean See AlsoReferenceFilledRegion ClassAutodesk.Revit.DB Namespace