pub unsafe extern "C" fn MIDISourceCreate(
client: MIDIClientRef,
name: CFStringRef,
outSrc: *mut MIDIEndpointRef,
) -> OSStatuspub unsafe extern "C" fn MIDISourceCreate(
client: MIDIClientRef,
name: CFStringRef,
outSrc: *mut MIDIEndpointRef,
) -> OSStatus