The Vgroup API routines, along with the two H interface routines used to open and close HDF files for vgroup access, are listed in Table 5A below.
TABLE 5A Vgroup Interface Routines
The name, class, and reference number are values assigned to the vgroup when it is created. The name and class are normally assigned by the calling program and may be changed throughout the scope of the vgroup object. However, the reference number is assigned by the HDF library and not changed.