The MrmCloseHierarchy function closes a UID hierarchy
previously opened by MrmOpenHierarchyPerDisplay.
All files associated with the hierarchy are closed by the
Motif Resource Manager (MRM) and all associated memory is returned.
hierarchy_id
Specifies the ID of a previously opened UID hierarchy.
The hierarchy_id was returned in a previous call to
MrmOpenHierarchyPerDisplay.
Return value
This function returns one of these status return constants: