using System; using System.Collections.Generic; using System.Linq; using System.Text; using Microsoft.Win32; using System.Net.NetworkInformation; using System.Management; using System.Threading; using System.Runtime.InteropServices; using NETCONLib; namespace DynamicMAC {     public class MACHelper     {         [DllImport("wininet.dll")]         private extern static bool InternetGetConnectedState(int Description, int ReservedValue);         /// <summary>         /// 是否能连接上Internet         /// </summary>         /// <returns></returns>         public bool IsConnectedToInternet()         {             int Desc = 0;             return InternetGetConnectedState(Desc, 0);         }         /// <summary>         /// 获取MAC地址         /// </summary>         public string GetMACAddress()         {             //得到 MAC的注册表键             RegistryKey macRegistry = Registry.LocalMachine.OpenSubKey("SYSTEM").OpenSubKey("CurrentControlSet").OpenSubKey("Control")                 .OpenSubKey("Class").OpenSubKey("{4D36E972-E325-11CE-BFC1-08002bE10318}");             IList<string> list = macRegistry.GetSubKeyNames().ToList();             IPGlobalProperties computerProperties = IPGlobalProperties.GetIPGlobalProperties();             NetworkInterface[] nics = NetworkInterface.GetAllNetworkInterfaces();             var adapter = nics.First(o => o.Name == "本地连接");             if (adapter == null)                 return null;             return string.Empty;         }         /// <summary>         /// 设置MAC地址         /// </summary>         /// <param name="newMac"></param>         public void SetMACAddress(string newMac)         {             string macAddress;             string index = GetAdapterIndex(out macAddress);             if (index == null)                 return;             //得到 MAC的注册表键             RegistryKey macRegistry = Registry.LocalMachine.OpenSubKey("SYSTEM").OpenSubKey("CurrentControlSet").OpenSubKey("Control")                 .OpenSubKey("Class").OpenSubKey("{4D36E972-E325-11CE-BFC1-08002bE10318}").OpenSubKey(index, true);             if (string.IsNullOrEmpty(newMac))             {                 macRegistry.DeleteValue("NetworkAddress");             }             else             {                 macRegistry.SetValue("NetworkAddress", newMac);                 macRegistry.OpenSubKey("Ndi", true).OpenSubKey("params", true).OpenSubKey("NetworkAddress", true).SetValue("Default", newMac);                 macRegistry.OpenSubKey("Ndi", true).OpenSubKey("params", true).OpenSubKey("NetworkAddress", true).SetValue("ParamDesc", "Network Address");             }             Thread oThread = new Thread(new ThreadStart(ReConnect));//new Thread to ReConnect             oThread.Start();         }         /// <summary>         /// 重设MAC地址         /// </summary>         public void ResetMACAddress()         {             SetMACAddress(string.Empty);         }         /// <summary>         /// 重新连接         /// </summary>         private void ReConnect()         {             NetSharingManagerClass netSharingMgr = new NetSharingManagerClass();             INetSharingEveryConnectionCollection connections = netSharingMgr.EnumEveryConnection;             foreach (INetConnection connection in connections)             {                 INetConnectionProps connProps = netSharingMgr.get_NetConnectionProps(connection);                 if (connProps.MediaType == tagNETCON_MEDIATYPE.NCM_LAN)                 {                     connection.Disconnect(); //禁用网络                     connection.Connect();    //启用网络                 }             }         }         /// <summary>         /// 生成随机MAC地址         /// </summary>         /// <returns></returns>         public string CreateNewMacAddress()         {             //return "0016D3B5C493";             int min = 0;             int max = 16;             Random ro = new Random();             var sn = string.Format("{0}{1}{2}{3}{4}{5}{6}{7}{8}{9}{10}{11}",                ro.Next(min, max).ToString("x"),//0                ro.Next(min, max).ToString("x"),//                ro.Next(min, max).ToString("x"),                ro.Next(min, max).ToString("x"),                ro.Next(min, max).ToString("x"),                ro.Next(min, max).ToString("x"),//5                ro.Next(min, max).ToString("x"),                ro.Next(min, max).ToString("x"),                ro.Next(min, max).ToString("x"),                ro.Next(min, max).ToString("x"),                ro.Next(min, max).ToString("x"),//10                ro.Next(min, max).ToString("x")                 ).ToUpper();             return sn;         }         /// <summary>         /// 得到Mac地址及注册表对应Index         /// </summary>         /// <param name="macAddress"></param>         /// <returns></returns>         public string GetAdapterIndex(out string macAddress)         {             ManagementClass oMClass = new ManagementClass("Win32_NetworkAdapterConfiguration");             ManagementObjectCollection colMObj = oMClass.GetInstances();             macAddress = string.Empty;             int indexString = 1;             foreach (ManagementObject objMO in colMObj)             {                 indexString++;                 if (objMO["MacAddress"] != null && (bool)objMO["IPEnabled"] == true)                 {                     macAddress = objMO["MacAddress"].ToString().Replace(":", "");                     break;                 }             }             if (macAddress == string.Empty)                 return null;             else                 return indexString.ToString().PadLeft(4, '0');         }         #region Temp         public void noting()         {             //ManagementClass oMClass = new ManagementClass("Win32_NetworkAdapterConfiguration");             ManagementClass oMClass = new ManagementClass("Win32_NetworkAdapter");             ManagementObjectCollection colMObj = oMClass.GetInstances();             foreach (ManagementObject objMO in colMObj)             {                 if (objMO["MacAddress"] != null)                 {                     if (objMO["Name"] != null)                     {                         //objMO.InvokeMethod("Reset", null);                         objMO.InvokeMethod("Disable", null);//Vista only                         objMO.InvokeMethod("Enable", null);//Vista only                     }                     //if ((bool)objMO["IPEnabled"] == true)                     //{                     //    //Console.WriteLine(objMO["MacAddress"].ToString());                     //    //objMO.SetPropertyValue("MacAddress", CreateNewMacAddress());                     //    //objMO["MacAddress"] = CreateNewMacAddress();                     //    //objMO.InvokeMethod("Disable", null);                     //    //objMO.InvokeMethod("Enable", null);                     //    //objMO.Path.ReleaseDHCPLease();                     //    var iObj = objMO.GetMethodParameters("EnableDHCP");                     //    var oObj = objMO.InvokeMethod("ReleaseDHCPLease", null, null);                     //    Thread.Sleep(100);                     //    objMO.InvokeMethod("RenewDHCPLease", null, null);                     //}                 }             }         }         public void no()         {             Shell32.Folder networkConnectionsFolder = GetNetworkConnectionsFolder();             if (networkConnectionsFolder == null)             {                 Console.WriteLine("Network connections folder not found.");                 return;             }             Shell32.FolderItem2 networkConnection = GetNetworkConnection(networkConnectionsFolder, string.Empty);             if (networkConnection == null)             {                 Console.WriteLine("Network connection not found.");                 return;             }             Shell32.FolderItemVerb verb;             try             {                 IsNetworkConnectionEnabled(networkConnection, out verb);                 verb.DoIt();                 Thread.Sleep(1000);                 IsNetworkConnectionEnabled(networkConnection, out verb);                 verb.DoIt();             }             catch (ArgumentException ex)             {                 Console.WriteLine(ex.Message);             }         }         /// <summary>         /// Gets the Network Connections folder in the control panel.         /// </summary>         /// <returns>The Folder for the Network Connections folder, or null if it was not found.</returns>         static Shell32.Folder GetNetworkConnectionsFolder()         {             Shell32.Shell sh = new Shell32.Shell();             Shell32.Folder controlPanel = sh.NameSpace(3); // Control panel             Shell32.FolderItems items = controlPanel.Items();             foreach (Shell32.FolderItem item in items)             {                 if (item.Name == "网络连接")                     return (Shell32.Folder)item.GetFolder;             }             return null;         }         /// <summary>         /// Gets the network connection with the specified name from the specified shell folder.         /// </summary>         /// <param name="networkConnectionsFolder">The Network Connections folder.</param>         /// <param name="connectionName">The name of the network connection.</param>         /// <returns>The FolderItem for the network connection, or null if it was not found.</returns>         static Shell32.FolderItem2 GetNetworkConnection(Shell32.Folder networkConnectionsFolder, string connectionName)         {             Shell32.FolderItems items = networkConnectionsFolder.Items();             foreach (Shell32.FolderItem2 item in items)             {                 if (item.Name == "本地连接")                 {                     return item;                 }             }             return null;         }         /// <summary>         /// Gets whether or not the network connection is enabled and the command to enable/disable it.         /// </summary>         /// <param name="networkConnection">The network connection to check.</param>         /// <param name="enableDisableVerb">On return, receives the verb used to enable or disable the connection.</param>         /// <returns>True if the connection is enabled, false if it is disabled.</returns>         static bool IsNetworkConnectionEnabled(Shell32.FolderItem2 networkConnection, out Shell32.FolderItemVerb enableDisableVerb)         {             Shell32.FolderItemVerbs verbs = networkConnection.Verbs();             foreach (Shell32.FolderItemVerb verb in verbs)             {                 if (verb.Name == "启用(&A)")                 {                     enableDisableVerb = verb;                     return false;                 }                 else if (verb.Name == "停用(&B)")                 {                     enableDisableVerb = verb;                     return true;                 }             }             throw new ArgumentException("No enable or disable verb found.");         }         #endregion     } }