如何使用ctypes模块通过引用向EnumChildWindows发送Python列表作为参数？

我有以下工作Python代码，它使用模块

win32gui

调用

EnumChildWindows

函数：

import win32gui

def func(hwnd, param):
  param.append(hwnd)
  return True

def code():
  arr = []
  win32gui.EnumChildWindows(win32gui.GetDesktopWindow(), func, arr)
  print(arr)

code()

win32gui.EnumChildWindows

允许通过引用传递最后一个参数中的任何Python对象

我正试图用这个模块做同样的事情。我得到的最接近的结果是传递一个C数组而不是Python列表，尽管它不是通过引用传递的，因为当我在函数内部更改变量时，它不会在外部更改其值

代码如下：

from ctypes import byref, POINTER, windll, WINFUNCTYPE
from ctypes.wintypes import BOOL, HWND, LPARAM

def func(hwnd, param):
  c_arr = HWND * (len(param) + 1)
  param = c_arr(*param)
  param[len(param) - 1] = hwnd
  print(str(param[len(param) - 1]))
  return True

def code():
  py_arr = []
  c_arr = HWND * len(py_arr)
  arr = c_arr(*py_arr)
  WNDENUMPROC = WINFUNCTYPE(BOOL, HWND, HWND * len(py_arr))
  windll.user32.EnumChildWindows.argtypes = [HWND, WNDENUMPROC, POINTER(HWND * len(py_arr))]
  windll.user32.EnumChildWindows.restype = BOOL
  windll.user32.EnumChildWindows(windll.user32.GetDesktopWindow(), WNDENUMPROC(func), byref(arr))
  print(arr)

code()

from ctypes import byref, py_object, windll, WINFUNCTYPE
from ctypes.wintypes import BOOL, HWND

def func(hwnd, param):
  param.append(hwnd)
  return True

def code():
  arr = []
  WNDENUMPROC = WINFUNCTYPE(BOOL, HWND, py_object)
  windll.user32.EnumChildWindows.argtypes = [HWND, WNDENUMPROC, py_object]
  windll.user32.EnumChildWindows.restype = BOOL
  windll.user32.EnumChildWindows(windll.user32.GetDesktopWindow(), WNDENUMPROC(func), arr)
  print(arr)

code()

---

经过一段时间的搜索和尝试，我在C中找到了的代码

它使用对应于的

工作代码如下：

from ctypes import byref, POINTER, windll, WINFUNCTYPE
from ctypes.wintypes import BOOL, HWND, LPARAM

def func(hwnd, param):
  c_arr = HWND * (len(param) + 1)
  param = c_arr(*param)
  param[len(param) - 1] = hwnd
  print(str(param[len(param) - 1]))
  return True

def code():
  py_arr = []
  c_arr = HWND * len(py_arr)
  arr = c_arr(*py_arr)
  WNDENUMPROC = WINFUNCTYPE(BOOL, HWND, HWND * len(py_arr))
  windll.user32.EnumChildWindows.argtypes = [HWND, WNDENUMPROC, POINTER(HWND * len(py_arr))]
  windll.user32.EnumChildWindows.restype = BOOL
  windll.user32.EnumChildWindows(windll.user32.GetDesktopWindow(), WNDENUMPROC(func), byref(arr))
  print(arr)

code()

from ctypes import byref, py_object, windll, WINFUNCTYPE
from ctypes.wintypes import BOOL, HWND

def func(hwnd, param):
  param.append(hwnd)
  return True

def code():
  arr = []
  WNDENUMPROC = WINFUNCTYPE(BOOL, HWND, py_object)
  windll.user32.EnumChildWindows.argtypes = [HWND, WNDENUMPROC, py_object]
  windll.user32.EnumChildWindows.restype = BOOL
  windll.user32.EnumChildWindows(windll.user32.GetDesktopWindow(), WNDENUMPROC(func), arr)
  print(arr)

code()