Determines were settings modified after profile was applied or not.
PRL_RESULT PrlVmCfg_IsCustomProfile( PRL_HANDLE hVm, PRL_BOOL_PTR pbCustom );
PrlApiVm.h
PRL_RESULT. Possible values:
PRL_ERR_INVALID_ARG - invalid handle was passed.
PRL_ERR_SUCCESS - function completed successfully.