IEasyAEClientExtension Class Members

QuickOPC User's Guide and Reference

IEasyAEClientExtension Class Members

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OpcLabs.EasyOpcClassic Assembly > OpcLabs.EasyOpc.AlarmsAndEvents Namespace : IEasyAEClientExtension Class

The following tables list the members exposed by IEasyAEClientExtension.

Public Methods

	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 server can be local or can be remotely accessed via DCOM. Optionally, an access path can be specified or a specific data type can be requested. The client is required to pass the activeTime and cookie received in the event notification to the AcknowledgeCondition method without modification.
	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. The server can be local or can be remotely accessed via DCOM. Optionally, an access path can be specified or a specific data type can be requested. Some servers may not maintain sufficient condition state information to fully implement this method.
	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)

Protected Methods

	Name	Description
	Finalize	Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from object)
	MemberwiseClone	Creates a shallow copy of the current System.Object. (Inherited from object)

See Also

Reference

IEasyAEClientExtension Class
OpcLabs.EasyOpc.AlarmsAndEvents Namespace

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