Opc.Ua.Server.EventManager.ModifyMonitoredItem C# (CSharp) Method

        public void ModifyMonitoredItem(
            OperationContext           context,
            IEventMonitoredItem        monitoredItem,
            TimestampsToReturn         timestampsToReturn,
            MonitoredItemModifyRequest itemToModify,
            EventFilter                filter)
        {
            lock (m_lock)
            {
                // should never be called with items that it does not own.
                if (!m_monitoredItems.ContainsKey(monitoredItem.Id))
                {
                    return;
                }

                // limit the queue size.
                uint queueSize = itemToModify.RequestedParameters.QueueSize;

                if (queueSize > m_maxEventQueueSize)
                {
                    queueSize = m_maxEventQueueSize;
                }

                // modify the attributes.
                monitoredItem.ModifyAttributes(
                    context.DiagnosticsMask,
                    timestampsToReturn,
                    itemToModify.RequestedParameters.ClientHandle,
                    filter,
                    filter,
                    null,
                    itemToModify.RequestedParameters.SamplingInterval,
                    queueSize,
                    itemToModify.RequestedParameters.DiscardOldest);
            }           
        }