Determines the number of the parameters in the event container.
PRL_RESULT PrlEvent_GetParamsCount( PRL_HANDLE hEvent, PRL_UINT32_PTR pnParamsCount );
PrlApiCore.h
PRL_RESULT. Possible values:
PRL_ERR_INVALID_ARG - invalid handle or null pointer was passed.
PRL_ERR_UNIMPLEMENTED - the event object does not support this functionality.
PRL_ERR_SUCCESS - function completed successfully.