| 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. |
OPC Studio User's Guide and Reference
_EasyAEClient Interface Methods