VC++管理Wifi方法讲解

VC++管理Wifi

使用wlan native api来连接、断开、枚举Wifi信息。

这里只处理连接过的Wifi，没有链接过的不考虑。

PS: CSDN博客频道真是越改越烂！Fuck!

代码

// Demo1.cpp : 定义控制台应用程序的入口点。
//

#include "stdafx.h"

#include 
#include   
#include   
#include 

#pragma comment(lib, "ole32.lib")
#pragma comment(lib, "wlanapi.lib")

void ssid2wchar(DOT11_SSID& pIn, WCHAR* pOut) {
    char tmp[33] = { 0 };
    //for (int i=0;i< pIn.uSSIDLength; i++)
    //{
 //     sprintf(tmp+i, "%02X", pIn.ucSSID[i]&0xFF);
    //}
    memcpy(tmp, pIn.ucSSID, pIn.uSSIDLength);
    MultiByteToWideChar(CP_ACP, 0, tmp, strlen(tmp), pOut, 65);
}

int main()
{
    CoInitialize(NULL);
    DWORD dwResult = 0;
    DWORD dwCurVersion = 0;
    HANDLE hClient = NULL;
    WCHAR GuidString[48] = { 0 };
    PWLAN_INTERFACE_INFO_LIST pIfList = NULL;
    dwResult = WlanOpenHandle(2, NULL, &dwCurVersion, &hClient);
    if (dwResult != ERROR_SUCCESS) {
        wprintf(L"open wlan error!: %u\n", dwResult);
        goto end;
    }
    WlanEnumInterfaces(hClient, NULL, &pIfList); // 枚举WLAN设备

    StringFromGUID2((pIfList->InterfaceInfo[0].InterfaceGuid), (LPOLESTR)&GuidString, sizeof(GuidString) / sizeof(*GuidString));
    wprintf(L"Wlan nums: %u name[0]: %s  GUID: %s\n", pIfList->dwNumberOfItems, pIfList->InterfaceInfo[0].strInterfaceDescription,
        GuidString);
    // 连接or断开wifi
    if (wlan_interface_state_connected == pIfList->InterfaceInfo[0].isState)
    {
        //WlanDisconnect(hClient, &pIfList->InterfaceInfo[0].InterfaceGuid, NULL);//DISCONNECT FIRST 
    }else if (wlan_interface_state_disconnected == pIfList->InterfaceInfo[0].isState)
    {
        WLAN_CONNECTION_PARAMETERS wlanConnPara;
        wlanConnPara.wlanConnectionMode = wlan_connection_mode_profile; //YES,WE CONNECT AP VIA THE PROFILE  
        wlanConnPara.strProfile = L"Tami1703-5G";                       // set the profile name  
        wlanConnPara.pDot11Ssid = NULL;                                 // SET SSID NULL  
        wlanConnPara.dot11BssType = dot11_BSS_type_infrastructure;      //dot11_BSS_type_any,I do not need it this time.          
        wlanConnPara.pDesiredBssidList = NULL;                          // the desired BSSID list is empty  
        wlanConnPara.dwFlags = WLAN_CONNECTION_HIDDEN_NETWORK;          //it works on my WIN7\8  
        WlanConnect(hClient, &(pIfList->InterfaceInfo[0].InterfaceGuid), &wlanConnPara, NULL);
        Sleep(2000);
    }

    // scan wifi skip, use hand
    // list wifi
    PWLAN_AVAILABLE_NETWORK_LIST pWifiList = NULL;
    dwResult = WlanGetAvailableNetworkList(hClient, &(pIfList->InterfaceInfo[0].InterfaceGuid), WLAN_AVAILABLE_NETWORK_INCLUDE_ALL_MANUAL_HIDDEN_PROFILES,
        NULL, &pWifiList);
    if (dwResult == ERROR_SUCCESS) {
        wprintf(L"Wifi Nums: %u\n", pWifiList->dwNumberOfItems);
        for (int i=0; i < pWifiList->dwNumberOfItems;i++)
        {
            WLAN_AVAILABLE_NETWORK oneWifi = pWifiList->Network[i];
            WCHAR pBuff[65] = { 0 };
            ssid2wchar(oneWifi.dot11Ssid, pBuff);
            wprintf(L"[%d] Name: %s,\t Qos: %u, SSID: %s\n", i, lstrlen(oneWifi.strProfileName)>0?oneWifi.strProfileName:L"null", oneWifi.wlanSignalQuality, pBuff);
        }
    }


end:
    system("\npause");
    CoUninitialize();
    return 0;
}