Enum ClassInterfaceType Path C++ Link System.Runtime.InteropServices.ClassInterfaceType, mscorlib underlying int32 mscorlib.dll Values 3 NameValueHex None00x00AutoDispatch10x01AutoDual20x02 Used by 1types with a member, parameter or interface of this type ClassInterfaceAttribute // System.Runtime.InteropServices.ClassInterfaceType, mscorlib enum class ClassInterfaceType : int32 { None = 0, AutoDispatch = 1, AutoDual = 2, };