The HDF_VD_ISVG function determines if the object associated with Id is a VGroup in an HDF file.

Examples


Vid = HDF_VG_GETNEXT(Vgrp, -1)
PRINT, HDF_VD_ISVG(VGrp, Vid)

Syntax


Result = HDF_VD_ISVG(VGroup, Id)

Return Value


Returns True (1) if the object is a VGroup, or False (0) otherwise.

Arguments


VGroup

The VGroup handle returned by a previous call to HDF_VD_ATTACH.

Id

The VGroup reference number obtained by a previous call to HDF_VG_GETNEXT.

Keywords


None

Version History


4.0

Introduced