HDF_VG_GETTRS procedure returns the
tag/reference pairs of the Hierarchical Data Format file objects belonging to the specified
VGroup, Tags, Refs
The VGroup handle returned by a previous call to HDF_VG_ATTACH.
A named variable in which the tag numbers are returned.
A named variable in which the reference numbers are returned.
The maximum number of tags and references to be returned. The default is to return all tags and references in