vgroup_id

IN:

Vgroup identifier returned by Vattach

	Purpose	Gets the version of a vgroup.
	Return value	Returns the vgroup version number if successful, and FAIL (or -1) otherwise.
	Description	Vgetversion returns the version number of the vgroup identified by the parameter vgroup_id. There are three valid version numbers: VSET_OLD_VERSION (or 2), VSET_VERSION (or 3), and VSET_NEW_VERSION (or 4).
		VSET_OLD_VERSION is returned when the vgroup is of a version that corresponds to an HDF library version before version 3.2.
		VSET_VERSION is returned when the vgroup is of a version that corresponds to an HDF library version between versions 3.2 and 4.0 release 2.
		VSET_NEW_VERSION is returned when the vgroup is of the version that corresponds to an HDF library version of version 4.1 release 1 or higher.

	FORTRAN	integer function vfgver(vgroup_id)
		integer vgroup_id