SubscribeRootError

virtual PSubscription IAxisControlBase::SubscribeRootError(EventOccurredHandler handler) = 0

Subscribes a callback to be executed for the first event that triggers the Error response (i.e. root error).

Parameters

handler – Function to be called when the root error occurs.

Returns

PSubscription – An ISubscription for the callback.

Throws

• CInvalidArgumentException – Empty callback handler specified.

• CCommunicationErrorException – Protocol error.

• CConnectionLostException – Connection to controller lost.

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