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Vntagrefs/vntrc

int32 Vntagrefs(int32 vgroup_id)

vgroup_id

IN:

Vgroup identifier returned by Vattach

Purpose

Returns the number of objects in a vgroup.

Return value

Returns 0 or a positive number representing the number of HDF objects linked to the vgroup or FAIL (or -1) otherwise.

Description

Vntagrefs returns the number of objects in a vgroup identified by the parameter vgroup_id.

Vntagrefs is used together with Vgettagrefs, or with Vgettagref to look at the data objects linked to a given vgroup.

FORTRAN

integer function vntrc(vgroup_id)

integer vgroup_id



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HDF Reference Manual - 04/08/98, NCSA HDF Development Group.