C#中如何获取当前系统的网络类型和网络信号强度

Question

问题如标题所示，各位大大，请指教

Answer 1

有个库wlanapi.dll中应该有你想要的功能.
http://www.pudn.com/downloads443/sourcecode/windows/network/detail1869658.html
以上链接有头文件、lib以及dll的下载。

Answer 2

http://www.codeproject.com/Articles/23496/Wireless-signal-indicator
这里有个无线信号强度的demo

Answer 3

你可以用 ping ping到服务器的网络是否畅通 根据时间判断网络信号强度 我就是这样做的
  //获取服务器ip 
                    string constring = ConfigManager.GetConnectionStringsConfig(ConfigManager.config, "ServerDB");
                    string[] strs = constring.Split('=');
                    string strServer = strs[1].Substring(0, strs[1].IndexOf(';'));
                    //检测网络是否通畅
                    Ping ping = new Ping();
                    PingReply reply = ping.Send(strServer);
                    
                    if (reply.Status == IPStatus.Success)
                    {
                        if(reply.RoundtripTime<200)
                        {//加载信号图片
                            SignalImg.Dispatcher.BeginInvoke(new Action(() =>
                             {LoadPhoto(SignalImg, "\\Images\\Max-signal.gif");}));
                        }
                        else
                        {//加载信号图片
                            SignalImg.Dispatcher.BeginInvoke(new Action(() =>
                            {LoadPhoto(SignalImg, "\\Images\\low-signal.png");}));
                        }
                    }
                    else
                    {
                       //加载信号图片
                        SignalImg.Dispatcher.BeginInvoke(new Action(() =>
                        { LoadPhoto(SignalImg, "\\Images\\no-signal.png"); }));
                    }