GetMarshalSizeMax()

int System.Runtime.InteropServices.IMarshal.GetMarshalSizeMax	(	ref Guid	riid,
		IntPtr	pv,
		int	dwDestContext,
		IntPtr	pvDestContext,
		int	mshlflags,
		out int	pSize )

Implemented in System.Runtime.InteropServices.StandardOleMarshalObject.