vdata_id

IN:

Vdata identifier returned by VSattach

	Purpose	Returns the interlace mode of a vdata.
	Return value	Returns FULL_INTERLACE (or 0) or NO_INTERLACE (or 1) if successful and FAIL (or -1) otherwise.
	Description	VSgetinterlace returns the interlace mode of the vdata identified by the parameter vdata_id.

	FORTRAN	integer function vsfgint(vdata_id)
		integer vdata_id