Register a MessagingListener to listen to messages received by the message handlers of this class. NOTE: Agents may register a MessagingListener with the Agent or Zone classes. When a listener is registered with both classes, it will be called twice. Consequently, it is recommended that most implementations choose to register MessagingListeners with only one of these classes depending on whether the agent is interested in receiving global notifications or notifications on only a subset of zones.

void AddMessagingListener(
	IMessagingListener listener
)

Sub AddMessagingListener ( _
	listener As IMessagingListener _
)

void AddMessagingListener (
	IMessagingListener^ listener
)