Schedules the receiver into the run loop mode
- iOS 2.0+
- macOS 10.0+
- Mac Catalyst 13.0+
- tvOS 9.0+
- watchOS 2.0+
The run loop to which to add the receiver.
The run loop mode in which to add the receiver.
When the receiver is scheduled, the run loop monitors the mach port for incoming messages and, when a message arrives, invokes the delegate method