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Namespace: Autodesk.Revit.DB Class: DirectShapeReferenceOptions

DirectShapeReferenceOptions.GetExternalGeometryId

Method
Description:
Retrieves the ExternalGeometryId associated with the reference object.
Remarks:
If an ExternalGeometryId has not been set, this method returns null.
Syntax 
public ExternalGeometryId GetExternalGeometryId()