Function AudioServicesAddSystemSoundCompletion 

pub unsafe extern "C-unwind" fn AudioServicesAddSystemSoundCompletion(
    in_system_sound_id: SystemSoundID,
    in_run_loop: Option<&CFRunLoop>,
    in_run_loop_mode: Option<&CFString>,
    in_completion_routine: AudioServicesSystemSoundCompletionProc,
    in_client_data: *mut c_void,
) -> i32

Available on crate features AudioServices and objc2-core-foundation only.

This function will be deprecated in a future release. Use AudioServicesPlayAlertSoundWithCompletion or AudioServicesPlaySystemSoundWithCompletion instead.

Call the provided Completion Routine when provided SystemSoundID finishes playing.

Once set, the System Sound server will send a message to the System Sound client indicating which SystemSoundID has finished playing.

Parameter inSystemSoundID: The SystemSoundID to associate with the provided completion routine.

Parameter inRunLoop: A CFRunLoopRef indicating the desired run loop the completion routine should be run on. Pass NULL to use the main run loop.

Parameter inRunLoopMode: A CFStringRef indicating the run loop mode for the runloop where the completion routine will be executed. Pass NULL to use kCFRunLoopDefaultMode.

Parameter inCompletionRoutine: An AudioServicesSystemSoundCompletionProc to be called when the provided SystemSoundID has completed playing in the server.

Parameter inClientData: A void* to pass client data to the completion routine.

Safety

• in_run_loop possibly has additional threading requirements.
• in_completion_routine must be implemented correctly.
• in_client_data must be a valid pointer or null.