C++获取Windows系统的WIFI列表

 

之前写过一篇 Qt获取Windows系统的WIFI列表的文章，原理是通过cmd命令来实现的，现在发现直接调用Windows API会更简单，所以记录一下

Qt 获取WIFI列表：https://www.cnblogs.com/shiyixirui/p/17965357

 

代码：

#include <windows.h>
#include <wlanapi.h>
#include <objbase.h>
#include <wtypes.h>

#include <iostream>
#include <vector>

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


int test()
{
    // 初始化COM
    HRESULT ret = CoInitializeEx(NULL, COINIT_MULTITHREADED);

    // Handle to the WLAN API
    HANDLE hClient = NULL;
    DWORD dwMaxClient = 2, dwCurVersion = 0, dwResult = 0;

    // 打开WIFI模块
    dwResult = WlanOpenHandle(dwMaxClient, NULL, &dwCurVersion, &hClient);
    if (dwResult != ERROR_SUCCESS) { return; }

    // 枚举WIFI列表
    PWLAN_INTERFACE_INFO_LIST pIfList = NULL;
    dwResult = WlanEnumInterfaces(hClient, NULL, &pIfList);
    if (dwResult != ERROR_SUCCESS) { WlanCloseHandle(hClient, NULL); return; }

    // Iterate through the list of interfaces
    for (DWORD i = 0; i < pIfList->dwNumberOfItems; i++) {
        WLAN_INTERFACE_INFO wlanIfInfo = pIfList->InterfaceInfo[i];

        // Get the list of available networks
        PWLAN_AVAILABLE_NETWORK_LIST pNetworkList = NULL;
        dwResult = WlanGetAvailableNetworkList(hClient, &wlanIfInfo.InterfaceGuid, 0, NULL, &pNetworkList);
        if (dwResult != ERROR_SUCCESS) { continue; }

        // Iterate through the list of available networks
        for (DWORD j = 0; j < pNetworkList->dwNumberOfItems; j++) {
            WLAN_AVAILABLE_NETWORK network = pNetworkList->Network[j];
            QString name = QString::fromUtf8(QByteArray(reinterpret_cast<char*>(network.dot11Ssid.ucSSID)));
            qDebug() << "SSID:" << name;
            if (!name.isEmpty()) { ui.wifi_name->addItem(name); }            
        }

        // 释放 pNetworkList
        WlanFreeMemory(pNetworkList);
    }

    WlanFreeMemory(pIfList);        // 释放WIFI列表
    WlanCloseHandle(hClient, NULL);    // 关闭WIFI模块
    CoUninitialize();                // 反初始化COM
}