Completion Event Constants
As with Open Transport endpoint providers, when you call AppleTalk service provider functions asynchronously, Open Transport signals the function's completion by calling the notifier function you installed for your provider and sending it a completion event. The notifier function is the same as the one you used for your endpoint providers, and Open Transport uses its parameters in the same way.This list gives the completion events that Open Transport returns for each of the AppleTalk service provider functions: