MD

MD_NONE	None.
MD_CHAR	Char type.
MD_UCHAR	UChar type.
MD_LONG	Int32 type.
MD_ULONG	UInt32 type.
MD_LLONG	Int64 type.
MD_MATRIX	Matrix type.
MD_COLOR	Vector type.
MD_VECTOR	Vector type.
MD_NORMAL	Normal type.
MD_REAL	Float type.
MD_BOOL	Bool type.