如何在 .net 中获取可用的 wifi AP 及其信号强度? [英] How do I get the available wifi APs and their signal strength in .net?

问题描述

有没有办法使用 .NET 访问所有 WiFi 接入点及其各自的 RSSI 值?如果我能在不使用非托管代码的情况下做到这一点，那真是太好了，或者如果它可以在单声道和 .NET 中工作，那就更好了.

Is there any way to access all WiFi access points and their respective RSSI values using .NET? It would be really nice if I could do it without using unmanaged code or even better if it worked in mono as well as .NET.

如果可能的话，我会提供一个代码示例.谢谢

If it is possible i would appriciate a code sample. Thanks

以下是我发现的一些类似的 stackoverflow 问题:

Here are a few similiar stackoverflow questions i found:

-获取我在 Windows Vista 上使用 C# .Net 连接到的无线网络的 SSID

-在 C# 中管理无线网络连接

-获取无线的 BSSID(MAC 地址)来自 C# 的访问点

推荐答案

它是一个封装项目，在 http://www.codeplex.com/managedwifi

It is a wrapper project with managed code in c# at http://www.codeplex.com/managedwifi

它支持 Windows Vista 和 XP SP2(或更高版本).

It supports Windows Vista and XP SP2 (or later version).

示例代码:

using NativeWifi;
using System;
using System.Text;

namespace WifiExample
{
    class Program
    {
        /// <summary>
        /// Converts a 802.11 SSID to a string.
        /// </summary>
        static string GetStringForSSID(Wlan.Dot11Ssid ssid)
        {
            return Encoding.ASCII.GetString( ssid.SSID, 0, (int) ssid.SSIDLength );
        }

        static void Main( string[] args )
        {
            WlanClient client = new WlanClient();
            foreach ( WlanClient.WlanInterface wlanIface in client.Interfaces )
            {
                // Lists all networks with WEP security
                Wlan.WlanAvailableNetwork[] networks = wlanIface.GetAvailableNetworkList( 0 );
                foreach ( Wlan.WlanAvailableNetwork network in networks )
                {
                    if ( network.dot11DefaultCipherAlgorithm == Wlan.Dot11CipherAlgorithm.WEP )
                    {
                        Console.WriteLine( "Found WEP network with SSID {0}.", GetStringForSSID(network.dot11Ssid));
                    }
                }

                // Retrieves XML configurations of existing profiles.
                // This can assist you in constructing your own XML configuration
                // (that is, it will give you an example to follow).
                foreach ( Wlan.WlanProfileInfo profileInfo in wlanIface.GetProfiles() )
                {
                    string name = profileInfo.profileName; // this is typically the network's SSID

                    string xml = wlanIface.GetProfileXml( profileInfo.profileName );
                }

                // Connects to a known network with WEP security
                string profileName = "Cheesecake"; // this is also the SSID
                string mac = "52544131303235572D454137443638";
                string key = "hello";
                string profileXml = string.Format("<?xml version="1.0"?><WLANProfile xmlns="http://www.microsoft.com/networking/WLAN/profile/v1"><name>{0}</name><SSIDConfig><SSID><hex>{1}</hex><name>{0}</name></SSID></SSIDConfig><connectionType>ESS</connectionType><MSM><security><authEncryption><authentication>open</authentication><encryption>WEP</encryption><useOneX>false</useOneX></authEncryption><sharedKey><keyType>networkKey</keyType><protected>false</protected><keyMaterial>{2}</keyMaterial></sharedKey><keyIndex>0</keyIndex></security></MSM></WLANProfile>", profileName, mac, key);

                wlanIface.SetProfile( Wlan.WlanProfileFlags.AllUser, profileXml, true );
                wlanIface.Connect( Wlan.WlanConnectionMode.Profile, Wlan.Dot11BssType.Any, profileName );
            }
        }
    }
}

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