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Vgetnext/vfgnxt

int32 Vgetnext(int32 vgroup_id, int32 elem_ref)
vgroup_id

IN:

Vgroup identifier

elem_ref

IN:

Reference number of the vgroup or vdata

Purpose

Searches in the vgroup specified by vgroup_id for thevgroup or vdata following the vgroup or vdata referred to by elem_ref.

Return value

Returns the reference number of the target vgroup or vdata if successful and FAIL (or -1) otherwise.

Description

If elem_ref is set to -1 the reference number of the first element in the vgroup is returned.

Vgetnext will only examine vset elements. To examine all element links in a vgroup, use Vgettagrefs.

FORTRAN

integer function vfgnxt(vgroup_id, elem_ref)

integer vgroup_id, elem_ref



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HDF User's Reference Manual, Draft 06/09/97, NCSA HDF Development Group.