Windows WlanApi 和 Python Ctypes答案

【问题标题】：Windows WlanApi and Python CtypesWindows WlanApi 和 Python Ctypes
【发布时间】：2011-11-07 23:02:10
【问题描述】：

我正在 Windows 上开发一个强制门户项目。我写过这段代码（类似于this）：

from ctypes import wintypes
import ctypes

WlanApi = ctypes.windll.wlanapi

hClientHandle = wintypes.HANDLE()
phClientHandle = ctypes.pointer(hClientHandle)
dwNegotiatedVersion = wintypes.DWORD()
pdwNegotiatedVersion = ctypes.pointer(dwNegotiatedVersion)
dwClientVersion = wintypes.DWORD()
dwClientVersion.value = 2L

rc = WlanApi.WlanOpenHandle(dwClientVersion, None, pdwNegotiatedVersion, phClientHandle)
print rc

class GUID(ctypes.Structure):
    _fields_ = [("Data1", wintypes.DWORD),
                ("Data2", wintypes.WORD),
                ("Data3", wintypes.WORD),
                ("Data4", wintypes.BYTE * 8)]

class WLAN_INTERFACE_INFO (ctypes.Structure):
    _fields_ = [('InterfaceGuid', GUID),
                ('strInterfaceDescription', wintypes.WCHAR * 256),
                ('isState', wintypes.????)]

class WLAN_INTERFACE_INFO_LIST(ctypes.Structure):
    _fields_ = [('dwNumberOfItems', wintypes.DWORD),
                ('dwIndex', wintypes.DWORD),
                ('InterfaceInfo', WLAN_INTERFACE_INFO * 10)]

IfList = WLAN_INTERFACE_INFO_LIST()
pIfList = ctypes.pointer(IfList)
rc = WlanApi.WlanEnumInterfaces(hClientHandle, None, pIfList)

print rc
print "Num Entries: %s" % IfList.dwNumberOfItems

我找不到如何构造“WLAN_INTERFACE_STATE enumeration”，当我尝试使用WCHAR 数组或其他任何东西时，此脚本返回我的 6000000 个无线接口！！！

有人可以帮帮我吗？

【问题讨论】：

如果我用字节数组替换 dwNumberOfItems，我的脚本会返回：\nNum Entries: -32 76 80 00 00 00 00 00\n第二次运行我得到\nNum Entries: -32 76 60 00 00 00 00 00\n\n可能问题出在 HANDLE 指针上？

标签： python windows wifi ctypes

【解决方案1】：

它只是一个整数，没有结构 0 = 未准备好，1 = 已连接等。

【讨论】：

【解决方案2】：

嗯，它开始变得有意义了，因为这些结构中的大多数都有一个相应的指针。

据 PInvoke 的男孩们说

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct WLAN_INTERFACE_INFO
{
  /// GUID->_GUID
  public Guid InterfaceGuid;
  /// WCHAR[256]
  [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 256)]
  public string strInterfaceDescription;
  /// WLAN_INTERFACE_STATE->_WLAN_INTERFACE_STATE
  public WLAN_INTERFACE_STATE isState;
}

WLAN_INTERFACE_STATE 在哪里

public enum WLAN_INTERFACE_STATE
{
  wlan_interface_state_not_ready = 0,
  ...
  // 1 to 6
  ...
  wlan_interface_state_authenticating = 7,
}

PInvoke on WLAN...

【讨论】：