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 = 0;
                uint num = 0u;
                uint num2 = 0;
                uint num3 = 0;
                uint num4 = 0;
                uint num5 = 0;
                string systemDirectory = Environment.SystemDirectory;
                if ((systemDirectory != null) && (systemDirectory.Length > 0))
                {
                    uint num6;
                    FileSystemFeature fileSystemFeature;
                    Platform.GetVolumeInformation(string.Format("{0}:\", systemDirectory[0]), null, 0, out num, out num6, out fileSystemFeature, null, 0);
                }
                string g = RegistryWOW6432.GetRegKey32<string>(RegHive.HKEY_LOCAL_MACHINE, @"SOFTWAREMicrosoftCryptography", "MachineGuid");
                if ((g == null) || (g.Trim() == ""))
                {
                    g = RegistryWOW6432.GetRegKey64<string>(RegHive.HKEY_LOCAL_MACHINE, @"SOFTWAREMicrosoftCryptography", "MachineGuid");
                }
                if (g != null)
                {
                    byte[] buffer = new Guid(g).ToByteArray();
                    if (buffer != null)
                    {
                        num2 = BitConverter.ToUInt32(buffer, 0);
                        num3 = BitConverter.ToUInt32(buffer, 4);
                        num4 = BitConverter.ToUInt32(buffer, 8);
                        num5 = BitConverter.ToUInt32(buffer, 12);
                    }
                }
                return $"{volumeSerialNumber}-{num2}-{num3}-{num4}-{num5}";
            }
        }
    }
}