Welcome to the Harris Geospatial product documentation center. Here you will find reference guides, help documents, and product libraries.


Harris Geospatial / Docs Center / IDL Reference / I/O - HDF / HDF_VG_GETINFO

HDF_VG_GETINFO

HDF_VG_GETINFO

The HDF_VG_GETINFO procedure is a general VGroup inquiry routine. Set the various keywords to named variables to return information about different aspects of a VGroup in an HDF file.

Examples


HDF_VG_GETINFO, Vgrp, CLASS=c, NAME=nm, NENTRIES=n
PRINT, c, nm, n

Syntax


HDF_VG_GETINFO, VGroup [, CLASS=variable] [, NAME=variable] [, NATTRIBUTES=variable] [, NENTRIES=variable] [, REF=variable] [, TAG=variable]

Arguments


VGroup

The VGroup handle returned by a previous call to HDF_VG_ATTACH.

Keywords


CLASS

Set this keyword to a named variable in which the class of the VGroup is returned as a string.

NAME

Set this keyword to a named variable in which the name of the VGroup is returned as a string.

NATTRIBUTES

Set this keyword to a named variable in which the number of attributes assigned to the VGroup is returned as a long integer.

NENTRIES

Set this keyword to a named variable in which the number of objects inside the VGroup is returned as a long integer.

REF

Set this keyword to a named variable in which the reference number of the specified Vgroup is returned.

TAG

Set this keyword to a named variable in which the tag number of the specified Vgroup is returned.

Version History


4.0

Introduced

8.5.1

Added NATTRIBUTES keyword

See Also


HDF_VG_SETINFO



© 2017 Exelis Visual Information Solutions, Inc. |  Legal
My Account    |    Buy    |    Contact Us