C# 获取Windows 设备信息

 namespace Beisen.Native
 {
     using Beisen.Pdf;
     using System;
     using System.Runtime.InteropServices;

     internal sealed class DeviceInfo
     {
         private static DeviceInfo _Instance;

         public static DeviceInfo Instance
         {
             get
             {
                 if (_Instance == null)
                 {
                     _Instance = new DeviceInfo();
                 }
                 return _Instance;
             }
         }

         public string Id
         {
             get
             {
                 uint volumeSerialNumber = ;
                 uint num = 0u;
                 uint num2 = ;
                 uint num3 = ;
                 uint num4 = ;
                 uint num5 = ;
                 string systemDirectory = Environment.SystemDirectory;
                 if ((systemDirectory != null) && (systemDirectory.Length > ))
                 {
                     uint num6;
                     FileSystemFeature fileSystemFeature;
                     Platform.GetVolumeInformation(string.Format("{0}:\\", systemDirectory[]), null, , out num, out num6, out fileSystemFeature, null, );
                 }
                 string g = RegistryWOW6432.GetRegKey32<string>(RegHive.HKEY_LOCAL_MACHINE, @"SOFTWARE\Microsoft\Cryptography", "MachineGuid");
                 if ((g == null) || (g.Trim() == ""))
                 {
                     g = RegistryWOW6432.GetRegKey64<string>(RegHive.HKEY_LOCAL_MACHINE, @"SOFTWARE\Microsoft\Cryptography", "MachineGuid");
                 }
                 if (g != null)
                 {
                     byte[] buffer = new Guid(g).ToByteArray();
                     if (buffer != null)
                     {
                         num2 = BitConverter.ToUInt32(buffer, );
                         num3 = BitConverter.ToUInt32(buffer, );
                         num4 = BitConverter.ToUInt32(buffer, );
                         num5 = BitConverter.ToUInt32(buffer, );
                     }
                 }
                 return $"{volumeSerialNumber}-{num2}-{num3}-{num4}-{num5}";
             }
         }
     }
 }