Enum GCHandleType Path C++ Link System.Runtime.InteropServices.GCHandleType, mscorlib underlying int32 mscorlib.dll Values 4 NameValueHex Weak00x00WeakTrackResurrection10x01Normal20x02Pinned30x03 Used by 1types with a member, parameter or interface of this type GCHandle // System.Runtime.InteropServices.GCHandleType, mscorlib enum class GCHandleType : int32 { Weak = 0, WeakTrackResurrection = 1, Normal = 2, Pinned = 3, };