from pynput import mouse
from AppKit import NSScreen
import rtmidi

midiout = rtmidi.MidiOut()
available_ports = midiout.get_ports()

i = 0
for port in available_ports:
    if "IAC Driver" in port:
        midiout.open_port(i)
        break
    i+=1

def get_screen_size():
    screen = NSScreen.mainScreen()
    frame = screen.frame()
    width = int(frame.size.width)
    height = int(frame.size.height)
    return width, height


def on_move(x, y):
    w, h = get_screen_size()
    midiout.send_message([0xB0, 16, 127-(127*y/h)])
    midiout.send_message([0xB0, 17, 127*x/w])

with mouse.Listener(on_move=on_move) as listener:
    listener.join()