Function AudioDeviceCreateIOProcID 

pub unsafe extern "C-unwind" fn AudioDeviceCreateIOProcID(
    in_device: u32,
    in_proc: Option<unsafe extern "C-unwind" fn(u32, NonNull<AudioTimeStamp>, NonNull<AudioBufferList>, NonNull<AudioTimeStamp>, NonNull<AudioBufferList>, NonNull<AudioTimeStamp>, *mut c_void) -> i32>,
    in_client_data: *mut c_void,
    out_io_proc_id: NonNull<Option<unsafe extern "C-unwind" fn(u32, NonNull<AudioTimeStamp>, NonNull<AudioBufferList>, NonNull<AudioTimeStamp>, NonNull<AudioBufferList>, NonNull<AudioTimeStamp>, *mut c_void) -> i32>>,
) -> i32

Creates an AudioDeviceIOProcID from an AudioDeviceIOProc and a client data pointer.

AudioDeviceIOProcIDs allow for the client to register the same function pointer with a device multiple times

Parameter inDevice: The AudioDevice to register the IOProc with.

Parameter inProc: The AudioDeviceIOProc to register.

Parameter inClientData: A pointer to client data that is passed back to the IOProc when it is called.

Parameter outIOProcID: The newly created AudioDeviceIOProcID.

Returns: An OSStatus indicating success or failure.

Safety

• in_proc must be implemented correctly.
• in_client_data must be a valid pointer or null.
• out_io_proc_id must be a valid pointer.