SubscribeStateChange

ISubscription ITopController.SubscribeStateChange(TopControllerStateChangeHandler handler)

Registers a callback that is called when the top-controller state changes.

Parameters

handler – Delegate to be invoked when the top-controller state changes.

Returns

ISubscription – An ISubscription for the callback.

Throws

• CommunicationErrorException – Protocol error.

• ConnectionLostException – Connection to controller lost.

• RebootedException – Controller has been rebooted since this object reference was retrieved, invalidating this reference.

• IncompatibleException – Incompatible firmware version loaded.

• System.ObjectDisposedException – Object is disposed.

Remarks

Execution does not require a subscription resource.