Can anyone tell me what the notifyData of kAIArtPropertiesChangedNotifier contains? I don't see it listed anywhere in the docs.
The notifyData is size_t reinterpreted as (void*). We call it refStamp internally. It keeps on increasing linearly for every subsequent kAIArtProperitesChangesNotifier. This can be used by clients to see if they are getting a new call or they have already processed it.
Thanks for the response!