pal_id	IN:	Palette identifier returned by GRgetlutid
	ncomp	OUT:	Number of components in the palette
	data_type	OUT:	Data type of the palette
	interlace_mode	OUT:	Interlace mode of the stored palette data
	num_entries	OUT:	Number of color lookup table entries in the palette

	Purpose	Retrieves information about a palette.
	Return value	Returns SUCCEED (or 0) if successful and FAIL (or -1) otherwise.
	Description	GRgetlutinfo retrieves the number of pixel components, data type, interlace mode, and number of color lookup table entries of the palette identified by the parameter pal_id. These values are stored in the parameters ncomp, data_type, interlace_mode, and num_entries, respectively. In C if the value of any of the output parameters are set to NULL, the corresponding information will not be retrieved.

	FORTRAN	integer function mgglinf(pal_id, ncomp, data_type, interlace_mode, num_entries)
		integer pal_id, ncomp, data_type, interlace_mode, num_entries