ObjC handling for c functions

[scj643]

This code is useful for handling c functions that should return ObjCInstances
https://github.com/scj643/objc_tools/blob/master/objc_tools/c/objc_handler.py

from objc_util import ObjCInstance, c_void_p

def chandle(result, func, args):
    '''chandle
    Handles c_void_p to objc type
    use as a errcheck for a ctypes function
    >>> cfunc.restype = c_void_p
    >>> cfunc.errcheck = chandle
    '''
    if isinstance(result, (c_void_p, int)) and result:
        return ObjCInstance(result)
        
        
if __name__ == '__main__':
    from objc_util import *
    from objc_util import c
    MRMediaRemoteCopyPickableRoutes = c.MRMediaRemoteCopyPickableRoutes
    MRMediaRemoteCopyPickableRoutes.restype = c_void_p
    MRMediaRemoteCopyPickableRoutes.errcheck = chandle
    t=MRMediaRemoteCopyPickableRoutes()```