VerQueryValueW问题python 3

import ctypes

# 定义函数原型
VerQueryValueW = ctypes.windll.version.VerQueryValueW

# 定义参数类型
LPVOID = ctypes.c_void_p
LPCWSTR = ctypes.c_wchar_p
LPLPVOID = ctypes.POINTER(LPVOID)
PUINT = ctypes.POINTER(ctypes.c_uint)

# 加载版本信息资源
dll = ctypes.windll.LoadLibrary("path/to/your/file.dll")

# 获取指定键名的值
def get_version_info(key_name):
    # 获取版本信息资源指针
    pBlock = LPVOID()
    VerQueryValueW(dll, LPCWSTR("\\\\"), LPLPVOID(pBlock), PUINT(0))

    # 获取指定键名的值
    value = ctypes.create_unicode_buffer(255)
    size = ctypes.c_uint(ctypes.sizeof(value))
    VerQueryValueW(pBlock, LPCWSTR(key_name), LPLPVOID(value), size)

    return value.value

# 调用示例
file_version = get_version_info("FileVersion")
product_version = get_version_info("ProductVersion")
company_name = get_version_info("CompanyName")