Initializes a matchmaker view controller to respond to an invitation received from another player.
- iOS 4.0+
- macOS 10.8+
- Mac Catalyst 13.0+
- tvOS 9.0+
The invitation received from the other player.
An initialized matchmaker view controller object. If an error occurred,
NULL is returned.
The user is allowed to join the match that the user was invited to, but is not allowed to invite others to the match.