@JonB yeah, changing c_void_p to c_byte still results in a crash with the same fault log, and setting the handler to None also results in a crash with the same fault log.

@JonB oops my mistake, though it still crashes unfortunately.
Thanks for the reply!

I'm trying to implement Face ID in a script, but following the example Touch ID scripts it just results in a crash, with faulthandler just saying Aborted

This is what i'm using,

from objc_util import *

context = ObjCClass('LAContext').alloc().init()
policy = 1
reason = "FaceID Testing"

def _handler(_cmd, success, error):
    autherr = ObjCInstance(error).localizedDescription()
    print(autherr)
    if success:
        print('authenicated')

handler = ObjCBlock(_handler,restype = None, argtypes = [c_void_p, c_void_p, c_void_p])
context.evaluatePolicy_localizedReason_reply_(policy, reason, handler)

Using the "canEvaluatePolicy:error:" function, it returns true, so i'm assuming that Face ID works.
Also setting policy to 2, defaults to passcode authentication.
Of course it can as simple as @omz not adding "NSFaceIDUsageDescription" to pythonista's Info.plist

Thanks for any help!

@mikael faulthandler seems really useful, Thanks!

@JonB Thanks for the help, I did manage to get it working by studying a couple of examples, but your code looks so much nicer.

Currently I was able to test the framework by calling "c.MRMediaRemoteSendComman(2, 0)" but the closest I got to calling "MRMediaRemoteGetNowPlayingInfo" was with this code:

from objc_util import *
from ctypes import *
import ctypes

c = ctyles.CDLL(None)
MRMediaRemoteGetNowPlayingInfo = c.MRMediaRemoteGetNowPlayingInfo 
MRMediaRemoteGetNowPlayingInfo .restype = c_void_p
MRMediaRemoteGetNowPlayingInfo .argtypes = [c_void_p, c_void_p]

queue = c.dispatch_get_current_queue

info = c_void_p()
MRMediaRemoteGetNowPlayingInfo(queue, byref(info))
print(objcCInstance(info))

But this just crashes the app, i'm pretty sure the problem is with the queue, but i'm not able to call "dispatch_get_main_queue" because its just says its unable to find the symbol.

Again, any help would be great!

@mikael, Yes I have looked at the documentation, though the example only works for the stock application. Also the function I eluded to is not a class method, but a function. I’m looking into ctypes, but I dont know how to pass a dispatch queue or a completion block to it, As I’m not too familiar with ctypes.

I'm trying to get information about the current song playing outside of the stock music app. Coming from jailbreak development, I know I can use the c function "MRMediaRemoteGetNowPlayingInfo" in the private framework mediaRemote. But I don't know how I would be able to call that in Pythonista.

Any help is appreciated!