使用ManagedWifi查看当前Wifi信号并选择wifi代码,CSharp代码库,德仔网

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【CSharp】使用ManagedWifi查看当前Wifi信号并选择wifi

作者:请叫我汪海 / 发布于2014/4/8/ 1608

使用ManagedWifi查看当前Wifi信号并选择wifi

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using NativeWifi;

namespace WifiExample
{
  class WifiManager
  {
    //CMCC的WIFISSID
    public WIFISSID cmccWifiSSID;

    public WifiManager()
    {
      ScanSSID();
    }

    /// <summary>
    /// 将SSID转化成字符串
    /// </summary>
    static string GetStringForSSID(Wlan.Dot11Ssid ssid)
    {
      return Encoding.UTF8.GetString(ssid.SSID, 0, (int)ssid.SSIDLength);
    }

    /// <summary> 
    /// 枚举所有无线设备接收到的SSID 
    /// </summary> 
    public void ScanSSID()
    {
      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)
        {
          WIFISSID targetSSID = new WIFISSID();
          targetSSID.wlanInterface = wlanIface;
          targetSSID.wlanSignalQuality = (int)network.wlanSignalQuality;
          targetSSID.SSID = GetStringForSSID(network.dot11Ssid);
          targetSSID.dot11DefaultAuthAlgorithm = network.dot11DefaultAuthAlgorithm.ToString();
          targetSSID.dot11DefaultCipherAlgorithm = network.dot11DefaultCipherAlgorithm.ToString();
          Console.WriteLine(targetSSID.SSID);
          if (targetSSID.SSID.ToLower().Equals("cmcc"))
          {
            cmccWifiSSID = targetSSID;
            return;
          }
        }
      }
    } // EnumSSID 

    /// <summary> 
    /// 连接到CMCC
    /// </summary> 
    /// <param name="ssid"></param> 
    public void ConnectToCMCC()
    {
      // Connects to a known network with WEP security 
      string profileName = cmccWifiSSID.SSID; // this is also the SSID
      Console.WriteLine("profileName" + profileName);
      cmccWifiSSID.wlanInterface.Connect(Wlan.WlanConnectionMode.Profile, Wlan.Dot11BssType.Any, profileName);
    }

    /// <summary> 
    /// 字符串转Hex 
    /// </summary> 
    /// <param name="str"></param> 
    /// <returns></returns> 
    public static string StringToHex(string str)
    {
      StringBuilder sb = new StringBuilder();
      byte[] byStr = System.Text.Encoding.Default.GetBytes(str); //默认是System.Text.Encoding.Default.GetBytes(str) 
      for (int i = 0; i < byStr.Length; i++)
      {
        sb.Append(Convert.ToString(byStr[i], 16));
      }

      return (sb.ToString().ToUpper());
    }

  } // Class WifiManager


  class WIFISSID
  {
    public string SSID = "NONE";
    public string dot11DefaultAuthAlgorithm = "";
    public string dot11DefaultCipherAlgorithm = "";
    public bool networkConnectable = true;
    public string wlanNotConnectableReason = "";
    public int wlanSignalQuality = 0;
    public WlanClient.WlanInterface wlanInterface = null;
  }

}
```


调用链接CMCC
===
```
WifiManager wm = new WifiManager();
wm.ConnectToCMCC();

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