| Name | Description | |
|---|---|---|
  | AcknowledgeCondition | Overloaded. Acknowledges a condition in the Event Server. The client will receive event notifications (indicating the acknowledgement) from conditions. This method specifically acknowledges the condition becoming active or transitioning into a different sub-condition (and no other state transition of the condition). One or more conditions belong to a specific event source - the source of the event notification. For each condition-related event notification, the corresponding Source, Condition Name, Active Time and Cookie is received by the client as part of the event notification.
The client is required to pass the activeTime and cookie received in the event notification to the AcknowledgeCondition method without modification. The server(s) can be local or can be remotely accessed via DCOM. |
| BrowseAreas | Overloaded. Browses the specified area (or root) in OPC server's process area space, and returns information about child areas found. |
| BrowseNodes | Overloaded. Browses the specified area (or root) in OPC server's process area space, and returns information about child nodes (areas or sources) found. |
| BrowseServers | Overloaded. Browses for OPC (Alarms&Events) servers. |
| BrowseSources | Overloaded. Browses the specified area (or root) in OPC server's process area space, and returns information about child sources found. |
| ChangeEventSubscription | Overloaded. Changes parameters of a particular event subscription. |
| Equals | (Inherited from object) |
| GetConditionState | Overloaded. Returns the current state information for the condition instance corresponding to the source and condition name.
Some servers may not maintain sufficient condition state information to fully implement this method. The server(s) can be local or can be remotely accessed via DCOM. |
| GetHashCode | Serves as the default hash function. (Inherited from object) |
| GetType | Gets the System.Type of the current instance. (Inherited from object) |
| PullNotification | Attempts to pull an OPC event subscribed to by the SubscribeEvents method. Returns refresh or standard event notifications. |
| QueryCategoryAttributes | Overloaded. Finds out event attributes that the server can provide as part of an event notification within a given event category. Uses server descriptor for specifying the OPC server. |
| QueryCategoryConditions | Overloaded. Finds out event conditions supported by given event category. Uses server descriptor for specifying the OPC server. |
| QueryEventCategories | Overloaded. The QueryEventCategories method gives clients a means of finding out the specific categories of events supported by a given server. This method would typically be invoked prior to specifying an event filter. Servers are able to define their own custom event categories, but a list of recommended categories is provided in the OPC specification. |
| QuerySourceConditions | Finds out event conditions associated with the specified source name. Computer name and server class are used for specifying the OPC server. |
| SubscribeEvents | Overloaded. Subscribe to particular OPC events. The Notification is generated for each event. |
| ToString | Returns a string that represents the current object. (Inherited from object) |
OPC Studio User's Guide and Reference
IEasyAEClientExtension Class Members
