Indicates the user-defined element type of the UnmanagedType.SafeArray.
Assembly: mscorlib (in mscorlib.dll)
Initialize this field with your custom type to enable the elements of the SAFEARRAY to be marshaled successfully. This field is only needed when the MarshalAsAttribute.SafeArraySubType is either VarEnum.VT_UNKNOWN, VarEnum.VT_DISPATCH, or VarEnum.VT_RECORD. For additional information, see Default Marshaling for Arrays.
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.