Determines if the share is read-only.
PRL_RESULT PrlShare_IsReadOnly( PRL_HANDLE hVmShare, PRL_BOOL_PTR pbReadOnly );
PrlApiVm.h
PRL_RESULT. Possible values:
PRL_ERR_INVALID_ARG - invalid handle or null pointer was passed.
PRL_ERR_SUCCESS - function completed successfully.