HDF_VG_GETID

The HDF_VG_GETID function returns the VGroup ID for the next VGroup after the specified VGroupId in a Hierarchical Data Format file. Use a VGroupId of -1 to get the first VGroup in the file.

Calling Sequence

Result = HDF_VG_GETID( FileHandle, VGroupId )

Arguments

FileHandle

The HDF file handle returned from a previous call to HDF_OPEN.

VGroupID

The VGroup reference number, generally obtained by HDF_VG_GETID or HDF_VG_LONE.

Example

See HDF_SD_IDTOREF for an example using this function.