Revit 2020.1 APIFamilyParameter ClassMembers See Also The family parameter object.Namespace: Autodesk.Revit.DBAssembly: RevitAPI (in RevitAPI.dll) Version: 20.0.0.0 (20.1.1.1)SyntaxC#public class FamilyParameter : APIObjectVisual BasicPublic Class FamilyParameter _ Inherits APIObjectVisual C++public ref class FamilyParameter : public APIObjectInheritance HierarchySystem..::..Object Autodesk.Revit.DB..::..APIObject Autodesk.Revit.DB..::..FamilyParameterSee AlsoFamilyParameter MembersAutodesk.Revit.DB Namespace