在C++程序中开启和禁用Windows设备的无线网卡的方法

1.列出当前网卡：SetupDiEnumDeviceInfo
2.找出当前无线网卡的名字（用natvie wifi api）
3.卸载\安装此驱动
问题：
log为：SetupDiSetClassInstallParams failed. -536870347
 
完整代码如下：

// ControlWirelessCard.cpp : Defines the entry point for the console application.
// 

#include "stdafx.h"
#include <windows.h>
#include <SetupAPI.h>
#include <devguid.h>
#include <string>
#include <cfgmgr32.h>
#include <wlanapi.h>
#pragma comment(lib,"setupapi.lib")
#pragma comment(lib, "wlanapi.lib")
using namespace std; 

wstring getWirelessNetworkCardName()
{
  wstring wirelessName;
  HANDLE hClient = NULL;
  DWORD dwMaxClient = 2;   //
  DWORD dwCurVersion = 0;
  DWORD dwResult = 0;
  DWORD dwRetVal = 0;
  int iRet = 0;
  WCHAR GuidString[39] = {0};
  unsigned int i; 

  /* variables used for WlanEnumInterfaces */
  PWLAN_INTERFACE_INFO_LIST pIfList = NULL;
  PWLAN_INTERFACE_INFO pIfInfo = NULL;   

  dwResult = WlanOpenHandle(dwMaxClient, NULL, &dwCurVersion, &hClient);
  if (dwResult != ERROR_SUCCESS) {
    wprintf(L"WlanOpenHandle failed with error: %u\n", dwResult);
    return wirelessName;
  } 

  dwResult = WlanEnumInterfaces(hClient, NULL, &pIfList);
  if (dwResult != ERROR_SUCCESS) {
    wprintf(L"WlanEnumInterfaces failed with error: %u\n", dwResult);
    return wirelessName;
  } else {
    PWLAN_AVAILABLE_NETWORK_LIST pWLAN_AVAILABLE_NETWORK_LIST = NULL;
    dwResult = WlanGetAvailableNetworkList(hClient, &pIfList->InterfaceInfo[0].InterfaceGuid,
        WLAN_AVAILABLE_NETWORK_INCLUDE_ALL_MANUAL_HIDDEN_PROFILES,
        NULL, &pWLAN_AVAILABLE_NETWORK_LIST);
    if (dwResult != ERROR_SUCCESS)
    {
      printf("WlanGetAvailableNetworkList failed with error: %u\n",dwResult);
      WlanFreeMemory(pWLAN_AVAILABLE_NETWORK_LIST);
      return wirelessName;
    }     

    for (i = 0; i < (int) pIfList->dwNumberOfItems; i++) {
      pIfInfo = (WLAN_INTERFACE_INFO *) &pIfList->InterfaceInfo[i];
      iRet = StringFromGUID2(pIfInfo->InterfaceGuid, (LPOLESTR) &GuidString,
        sizeof(GuidString)/sizeof(*GuidString));  

      wirelessName = pIfInfo->strInterfaceDescription;
    }
  }
  return wirelessName;
} 

BOOL changeStatus(DWORD NewStatus, DWORD SelectedItem, HDEVINFO hDevInfo)
{
  LPTSTR lpszMsg = NULL;
  HCURSOR hCursor = NULL;
  try
  {
    SP_PROPCHANGE_PARAMS PropChangeParams = {sizeof(SP_CLASSINSTALL_HEADER)};
    SP_DEVINFO_DATA DeviceInfoData = {sizeof(SP_DEVINFO_DATA)};  

    hCursor = SetCursor(LoadCursor(NULL, IDC_WAIT));
    // Get a handle to the Selected Item.
    if (!SetupDiEnumDeviceInfo(hDevInfo, SelectedItem, &DeviceInfoData))
    {
      wprintf(L"SetupDiEnumDeviceInfo failed. %d\n",GetLastError());
      throw lpszMsg;
    } 

    // Set the PropChangeParams structure.
    PropChangeParams.ClassInstallHeader.InstallFunction = DIF_PROPERTYCHANGE;
    PropChangeParams.Scope = DICS_FLAG_GLOBAL;
    PropChangeParams.StateChange = NewStatus; 

    if (!SetupDiSetClassInstallParams(hDevInfo, &DeviceInfoData, (SP_CLASSINSTALL_HEADER *)&PropChangeParams,
    sizeof(PropChangeParams)))
    {
      wprintf(L"SetupDiSetClassInstallParams failed. %d\n",GetLastError());
      throw lpszMsg;
    }
    // Call the ClassInstaller and perform the change.
    if (!SetupDiCallClassInstaller(DIF_PROPERTYCHANGE,hDevInfo,&DeviceInfoData))
    {
      wprintf(L"SetupDiCallClassInstaller failed. %d\n",GetLastError());
      throw lpszMsg;
    }
    SetCursor(hCursor);
    return TRUE;
  }
  catch (TCHAR * pszError)
  {
    SetCursor(hCursor);
    if (NULL != lpszMsg)
    {
      LocalFree((HLOCAL)lpszMsg);
    }
    return FALSE;
  }
} 

int _tmain(int argc, _TCHAR* argv[])
{
  LPTSTR lpszMsg = NULL;
   try
   {
     /*
     TCHAR * GUIDString = NULL;
     GUID guid;
     ZeroMemory(&guid, sizeof(GUID));
     GUIDString = _T("4d36e972-e325-11ce-bfc1-08002be10318");
     UuidFromString((unsigned char *)GUIDString, &guid);
     */
     //GUID guid = getWirelessNetworkCardGUID();
     HDEVINFO hDevInfo = SetupDiGetClassDevs(&GUID_DEVCLASS_NET,/*L"WIRELESS"*/NULL,NULL,DIGCF_PRESENT);
     //HDEVINFO hDevInfo = SetupDiGetClassDevs(&guid,/*L"WIRELESS"*/NULL,NULL,DIGCF_PRESENT);
     if (INVALID_HANDLE_VALUE == hDevInfo)
     {
      wprintf(L"INVALID_HANDLE_VALUE");
      return -1;
     } 

     DWORD i;
     int Icount=0;
     SP_DEVINFO_DATA DeviceInfoData;
     ZeroMemory(&DeviceInfoData, sizeof(SP_DEVINFO_DATA));
     DeviceInfoData.cbSize = sizeof(SP_DEVINFO_DATA); 

     for (i = 0; SetupDiEnumDeviceInfo(hDevInfo, i, &DeviceInfoData); ++i)
     {
       //Get DeviceInfo
       LPTSTR buffer = NULL;
       DWORD buffersize = 0;
       DWORD Status, Problem;
       BOOL bDisabled = FALSE;
      while (!SetupDiGetDeviceRegistryProperty(
          hDevInfo,
          &DeviceInfoData,
          SPDRP_DEVICEDESC, //Read the names of the designated card
          NULL,
          (PBYTE) buffer,
          buffersize,
          &buffersize)
        )
       {
         if ( GetLastError() == ERROR_INSUFFICIENT_BUFFER )
         {
           if (buffer) LocalFree(buffer);
          buffer=(LPTSTR)LocalAlloc(LPTR,buffersize);
         }
         else
         {
          wprintf(L"read network card failed!");
         }
       } 

       std::wstring strEthernet = buffer;
       //wprintf(L"the buffer is %ws\n",buffer); 

       wstring wirelessName = getWirelessNetworkCardName();
       if(wirelessName.empty())
       {
         wprintf(L"wirelessName IS empty\n");
         return -1;
       }
       //wprintf(L"wirelessName is %ws\n",wirelessName); 

       if(wirelessName == buffer)
       {
         wprintf(L"Found the wireless card: %ws\n",wirelessName);
         if (int i= CM_Get_DevNode_Status(&Status, &Problem, DeviceInfoData.DevInst,0) != CR_SUCCESS)
         {
           wprintf(L"CM_Get_DevNode_Status failed. %d\n",GetLastError());
          throw "failed\n";
         }
         if (!((Status & DN_HAS_PROBLEM) && (CM_PROB_DISABLED == Problem)))
         {
           bDisabled = FALSE;
         }
         if ((Status & DN_HAS_PROBLEM) && (CM_PROB_DISABLED == Problem))
         {
           bDisabled = TRUE;
         }
         if(bDisabled==FALSE)
         {
           wprintf(L"disable the network card\n");
           changeStatus(DICS_DISABLE, i, hDevInfo);//disable
         }
         if(bDisabled==TRUE)
         {
           wprintf(L"enable the network card\n");
           changeStatus(DICS_ENABLE, i, hDevInfo);// enable
         }
       }
     }
     return SetupDiDestroyDeviceInfoList(hDevInfo);
   }
   catch (TCHAR * pszError)
   {
     if (NULL != lpszMsg)
     {
      LocalFree((HLOCAL)lpszMsg);
     }
    return FALSE;
   }
  return 0;
}

一些常见错误解决
一、
从错误返回值入手。
-536870347，用windows自带计算器，选择程序员模式，将此十进制转换为16进制为E0000235.
用此错误号搜索，就是大名鼎鼎的32位程序跑在64位系统中报错。
虽然我用的64位win8下VS编译的程序，但是编译选项中仍然是WIN32程序。那么我们只需要修改成x64编译即可，操作如下。
BUILD-->Configuration Manager...-->找到要修改的project，将platform选择为x64.
如果没有，说明没有添加x64编译项，接着上面，在platform中选择<New...> -->New platform下选x64-->OK.
二、
编译64位程序，运行之。
仍然报错，返回值是5.ACCESS_DENIED.
权限不够，我们需要申请高权限。如下申请Admin权限：
你项目的Properties-->Linker-->Manifest File-->UAC Execution Level选requireAdministrator。
三、
继续运行。卸载无线网卡驱动成功。
但是上一篇的程序仍然有个问题，由于驱动卸载了，就不能用wlan api得到无线网卡名称，
所以程序加载无线网卡驱动就会失败。
我们可以用关键字“Wireless Network Adapter”来查找无线网卡，省掉使用wlan api那一步。