Routines (alphabetical) > Routines: H > HDF Routines > HDF_VG_NUMBER

# HDF_VG_NUMBER

The HDF_VG_NUMBER function returns the number of HDF file objects in the specified VGroup.

## Syntax

Result = HDF_VG_NUMBER(VGroup)

## Return Value

Returns the number of objects.

## Arguments

### VGroup

The VGroup handle returned by a previous call to HDF_VG_ATTACH.

## Keywords

None

## Version History

4.0 | Introduced