C#监控usb设备插拔

windows form监听usb插拔

public partial class USBDeviceForm : Form
    {
       public const int WM_DEVICECHANGE = 0x219;
        public const int DBT_DEVICEARRIVAL = 0x8000;
        public const int DBT_CONFIGCHANGECANCELED = 0x0019;
        public const int DBT_CONFIGCHANGED = 0x0018;
        public const int DBT_CUSTOMEVENT = 0x8006;
        public const int DBT_DEVICEQUERYREMOVE = 0x8001;
        public const int DBT_DEVICEQUERYREMOVEFAILED = 0x8002;
        public const int DBT_DEVICEREMOVECOMPLETE = 0x8004;
        public const int DBT_DEVICEREMOVEPENDING = 0x8003;
        public const int DBT_DEVICETYPESPECIFIC = 0x8005;
        public const int DBT_DEVNODES_CHANGED = 0x0007;
        public const int DBT_QUERYCHANGECONFIG = 0x0017;
        public const int DBT_USERDEFINED = 0xFFFF;

        public USBDeviceForm ()
        {
            InitializeComponent();
        }


        protected override void WndProc(ref Message m)
        {         

         try
            {
                if (m.Msg == WM_DEVICECHANGE)
                {
                    switch (m.WParam.ToInt32())
                    {
                        case WM_DEVICECHANGE:
                            break;
                        case DBT_DEVICEARRIVAL:
                            MessageBox.Show("判断检测USB插入电脑"); 
                            DriveInfo[] s = DriveInfo.GetDrives();
                            foreach (DriveInfo drive in s)
                            {
                                if (drive.DriveType == DriveType.Removable)
                                {
                                    break;
                                }
                            }
                            break;
                        case DBT_CONFIGCHANGECANCELED:
                            break;
                        case DBT_CONFIGCHANGED:
                            break;
                        case DBT_CUSTOMEVENT:
                            break;
                        case DBT_DEVICEQUERYREMOVE:
                            break;
                        case DBT_DEVICEQUERYREMOVEFAILED:
                            break;
                        case DBT_DEVICEREMOVECOMPLETE:
                            MessageBox.Show(""判断检测USB拔出电脑");
                            break;
                        case DBT_DEVICEREMOVEPENDING:
                            break;
                        case DBT_DEVICETYPESPECIFIC:
                            break;
                        case DBT_DEVNODES_CHANGED:
                            break;
                        case DBT_QUERYCHANGECONFIG:
                            break;
                        case DBT_USERDEFINED:
                            break;
                        default:
                            break;
                    }
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
            base.WndProc(ref m);
        }

windows console 控制台 监听usb插拔

static Logger<Program> logger = new Logger<Program>();
        static void Main(string[] args)
        {
            try
            {
                //查询所有设备的插拔事件
                //Win32_DeviceChangeEvent  Win32_VolumeChangeEvent
                ManagementEventWatcher watcher = new ManagementEventWatcher();
                WqlEventQuery query = new WqlEventQuery("SELECT * FROM Win32_DeviceChangeEvent  WHERE EventType = 2 or EventType = 3");
                watcher.EventArrived += (s, e) =>
                {
                    var txt = "";
                    foreach (var p in e.NewEvent.Properties)
                    {
                        txt += "name " + p.Name + " val " + p.Value + "\r\n";
                    }
                    Console.WriteLine(txt);
                    //string driveName = e.NewEvent.Properties["DriveName"].Value.ToString();
                    //EventType eventType = (EventType)(Convert.ToInt16(e.NewEvent.Properties["EventType"].Value));
                    //string eventName = Enum.GetName(typeof(EventType), eventType);
                    //Console.WriteLine("{0}: {1} {2}", DateTime.Now, driveName, eventName);
                };
                watcher.Query = query;
                watcher.Start();
                Console.Read();
                //ServicesManager.Instance.StartServices();
                //Thread.CurrentThread.IsBackground = false;
                //Thread.Sleep(Timeout.Infinite);
            }
            catch (Exception e)
            {
                logger.Error("Main", e);
            }
        }

wpf 监听usb插拔

public partial class MainWindow : Window
{
    public MainWindow()
    {
        InitializeComponent();
    }
    protected override void OnSourceInitialized(EventArgs e)
    {
        base.OnSourceInitialized(e);
        _intPtr = new WindowInteropHelper(this).Handle;
        HwndSource hwndSource = HwndSource.FromHwnd(_intPtr);
        // 添加处理程序
        if (hwndSource != null) hwndSource.AddHook(HwndSourceHook);
    }
    public IntPtr HwndSourceHook(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
    {
        if (msg == WM_DEVICECHANGE)
        {
            switch (wParam.ToInt32())
            {
                case DBT_DEVNODES_CHANGED: //已在系统中添加或删除设备。
                    Console.WriteLine("HwndSourceHook触发FindDevice");
                    DeviceManage.Instance.FDevice();//自定义处理方法
                    break;
                //case DBT_DEVICEARRIVAL://已插入设备或介质，现已可用。
                // MessageBox.Show("已插入设备或介质，现已可用。");
                // break;
                //case DBT_DEVICEREMOVECOMPLETE: //已删除设备或介质。
                // MessageBox.Show("已删除设备或介质。");
                // break;

                default:
                    break;
            }
        }
        return IntPtr.Zero;
    }
}

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