IOPCUAClientMonitoredItemCallback.ItemEventCallback (METH)ΒΆ
METHOD ItemEventCallback : OpcUa_StatusCode
This callback is used to send event notifications to the client. This will only be called for monitored items that register to an event notifier.
- InOut:
Scope
Name
Type
Comment
Return
ItemEventCallback
OpcUa_StatusCode
Input
hMonitoredItem
RTS_IEC_HANDLE
Handle to the event monitored item.
noOfEventFields
OpcUa_Int32
Number of fields available on the event fields paramter.
eventFields
POINTER TO OpcUa_Variant
Pointer to a list of event fields. The fields have the same order as the registered event fields.
reason
OpcUa_StatusCode
Status code of the operation.