Obtains a handle of type PHT_SYSTEM_STATISTICS_DISK containing the specified disk statistics.
PRL_RESULT PrlStat_GetDiskStat( PRL_HANDLE hStat, PRL_UINT32 nIndex, PRL_HANDLE_PTR phDiskStat );
PrlApiStat.h
PRL_RESULT. Possible values:
PRL_ERR_INVALID_ARG - invalid handle or null pointer was passed.
PRL_ERR_SUCCESS - function completed successfully.d