awCancelSubscriptionFromStruct

BrokerError awCancelSubscriptionFromStruct(
BrokerClient client,
BrokerSubscription *sub);

client	The Broker client whose event subscription is to be cancelled.
sub	The structure representing the subscription the Broker client wishes to cancel. See BrokerSubscription Objects for more information.

Cancels a subscription, specified by the subscription structure, for the specified Broker client. Only the event_type_name and filter fields of the subscription structure are used to find a matching subscription to cancel; the subId field is ignored.

Possible BrokerError major codes	Meaning
AW_ERROR_INVALID_CLIENT	The client has been destroyed or disconnected.
AW_ERROR_INVALID_SUBSCRIPTION	No matching subscription was found.
AW_ERROR_NULL_PARAM	The sub parameter is NULL or the event_type_name it contains is NULL.