Sent to the delegate when Apple Push Service cannot successfully complete the registration process.
- macOS 10.7+
The application that initiated the remote-notification registration process.
An NSError object that encapsulates information why registration did not succeed. The application can display this information to the user.
The delegate receives this message after the
register method of
NSApplication is invoked and there is an error in the registration process.
For more information about how to implement push notifications in your application, see Local and Remote Notification Programming Guide.