Fix bad import (#112)

Author: itziakos

win32ctypes/core/ctypes/_authentication.py

@@ -11,7 +11,7 @@
     BOOL, DWORD, FILETIME, LPCWSTR)
 
 from win32ctypes.core.compat import is_text
-from ._common import LPBYTE, _PyBytes_FromStringAndSize, PDWORD
+from ._common import LPBYTE, _PyBytes_FromStringAndSize
 from ._util import function_factory, check_false_factory, dlls
 from ._nl_support import _GetACP
 
@@ -120,7 +120,7 @@ def _CredEnumerate(Filter, Flags, Count, pppCredential):
 
 _BaseCredEnumerate = function_factory(
     dlls.advapi32.CredEnumerateW,
-    [LPCWSTR, DWORD, PDWORD, PPPCREDENTIAL],
+    [LPCWSTR, DWORD, POINTER(DWORD), PPPCREDENTIAL],
     BOOL,
     check_false_factory("CredEnumerate"))
 

win32ctypes/pywin32/win32cred.py

@@ -121,7 +121,7 @@ def CredEnumerate(Filter=None, Flags=0):
                 _common.ffi.cast(f"PCREDENTIAL*[{count}]", pppcreds))
         else:
             import ctypes
-            count = ctypes.DWORD()
+            count = _authentication.DWORD()
             # Create a mutable pointer variable
             mem = ctypes.create_string_buffer(1)
             pppcreds = _common.cast(