_EasyAEClient Interface Members

The following tables list the members exposed by _EasyAEClient.

Public Properties

	Name	Description
	AliasProvider	The alias provider to be used for resolving aliases by this component.
	CallbackQueueCapacity	Capacity of the callback queue.
	CallbackQueueIdleTimeToSleep	The idle time before the internal thread executing the queued callbacks is stopped.
	CustomReference	Can be used to distinguish otherwise equal widgets.
	DisplayString	The display string for the current object.
	InstanceParameters	Contains parameters that influence the behavior of just this instance of the component.
	Isolated	Specifies that you wish that the OpcLabs.EasyOpc.AlarmsAndEvents.EasyAEClientCore object instance works with an "isolated" connection to the OPC server, i.e. one that is not shared with other instances.
	IsolatedParameters	Contains parameters that influence the behavior of the component when it is isolated.
	LicenseInfo	Provides dictionary of license data fields and their values.
	PullNotificationQueueCapacity	Capacity of the event pull queue for notifications.
	QueueCallbacks	Determines whether the component will deliver all callbacks in a queued manner.
	SupportedTechnologies	Gets the OPC technologies supported.

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Public Methods

	Name	Description
	AcknowledgeCondition	Acknowledges a condition in the Event Server. Uses server descriptor for specifying the OPC server. Use default acknowledger ID and an empty comment.
	BrowseAreas	Browses the specified area for child areas. Uses computer name and server class for specifying the OPC server. A parent area is passed in. No filtering.
	BrowseNodes	Browses the specified area (or root) in OPC server's process area space, and returns information about child nodes (areas or sources) found. Uses server descriptor for specifying the OPC server. A parent area descriptor is passed in. No vendor-specific filtering.
	BrowseServers	Browses the specified computer and returns information about OPC (Alarms and Events) servers found.
	BrowseSources	Browses the specified area for child sources. Uses computer name and server class for specifying the OPC server. A parent area is passed in. No filtering.
	ChangeEventSubscription	Changes parameters of a particular event subscription. Changes parameters of an event subscription. Specify new notification rate, subscription filter object, and an "active" flag.
	Clone
	Equals
	GetConditionState	Returns the current state information for the condition instance corresponding to the source and condition name, passing in a server descriptor. Also allows to retrieve specified event attributes.
	GetConditionStateList	Returns the current state information for the condition instance corresponding to the source and condition name, passing in a server descriptor. Also allows to retrieve specified event attributes.
	GetEventsSubscriptionArguments	Obtains parameters of specified events subscription.
	GetHashCode
	GetService
	GetServiceByName	Gets the service object of the specified type, given by type name.
	GetType
	IsKnownEventsSubscriptionHandle	Determines whether the given event subscription handle is known to this client.
	PullMultipleNotifications	Attempts to pull multiple OPC events subscribed to by the OpcLabs.EasyOpc.AlarmsAndEvents.IEasyAEClient.SubscribeEvents method. Returns refresh or standard event notifications.
	PullNotification	Attempts to pull an OPC event subscribed to by the OpcLabs.EasyOpc.AlarmsAndEvents.IEasyAEClient.SubscribeEvents method. Returns refresh or standard event notifications.
	PullNotificationList	Attempts to pull multiple OPC events subscribed to by the OpcLabs.EasyOpc.AlarmsAndEvents.IEasyAEClient.SubscribeEvents method. Returns refresh or standard event notifications.
	QueryEventCategories	Finds out events categories supported by the server. 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. Server descriptor is used for specifying the OPC server. Queries event categories for given event types.
	QuerySourceConditions	Finds out event conditions associated with the specified source name. Uses server descriptor for specifying the OPC server.
	RefreshEventSubscription	Force a refresh for all active conditions and inactive, unacknowledged conditions whose event notifications match the filter of the event subscription. Clients often need to get the current condition information from the server, particularly at client startup, for things such as a current alarm summary. The OPC Event Server supports this requirement by resending the most recent event notifications which satisfy the filter in the event subscription and which are related to active and/or unacknowledged conditions. The client can then derive the current condition status from the "refreshed" event notifications.
	Reset	Sets the object properties back to their defaults.
	SubscribeEvents	Subscribe to OPC events. Specify server descriptor and subscription parameters objects, and "refresh when active" flag.
	ToString
	UnsubscribeAllEvents	Unsubscribe from changes of all OPC events.
	UnsubscribeEvents	Unsubscribe from particular OPC event notifications.
	ValueEquals	Defines a generalized method that classes must implement to create type-specific method for determining value equality of instances. Determines whether `this` instance has the same value as a given other instance.

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Reference

_EasyAEClient Interface
OpcLabs.EasyOpc.AlarmsAndEvents.ComTypes Namespace