Message 273868 - Python tracker (original) (raw)

I can confirm Eryk got what I meant. I didn't know if it was meant to work that way or if it was simply something that was overlooked so I thought I'd ask, I will look into the ctypes code to provide a patch sometime this week if I can.

Terry, for a working example take the following (on a MS Windows):

from ctypes import * from ctypes.wintypes import *

class CustomPHKEY(object): ... def init(self, value): ... self.as_parameter = HKEY(value) ...

function = ctypes.windll.advapi32.RegOpenKeyExW function.argtypes = [HKEY, c_wchar_p, DWORD, DWORD, POINTER(HKEY)] function.restype = LONG result = CustomPHKEY(0) function(0x80000002, 'SOFTWARE', 0, 0x20019, result) Traceback (most recent call last): File "", line 1, in ctypes.ArgumentError: argument 5: <type 'exceptions.TypeError'>: expected LP_c_void_p instance instead of c_void_p