func makeOutput(client C.MIDIClientRef, name string, midiChannel int, destination C.MIDIEndpointRef) (ret Output) {
var outPort C.MIDIPortRef
C.MIDIOutputPortCreate(client, strToCfstr(name), &outPort)
ret = Output{outPort, midiChannel, destination, make(chan NoteEvent, 100)}
go outputHandler(ret)
return
}
func NewOutputPort(client Client, name string) (outputPort OutputPort, err error) {
var port C.MIDIPortRef
stringToCFString(name, func(cfName C.CFStringRef) {
osStatus := C.MIDIOutputPortCreate(client.client, cfName, &port)
if osStatus != C.noErr {
err = errors.New(fmt.Sprintf("%d: failed to create a port", int(osStatus)))
} else {
outputPort = OutputPort{port}
}
})
return
}