protected override void OnSourceInitialized(EventArgs e)
            base.OnSourceInitialized(e);
            var hwndSource = PresentationSource.FromVisual(this) as HwndSource;
            hwndSource?.AddHook(new HwndSourceHook(WndProc));
在 USB 插拔可以收到 DEVICECHANGE 消息
        private IntPtr WndProc(IntPtr hwnd, int msg, IntPtr wparam, IntPtr lparam, ref bool handled)
            if (msg == (int) WM.DEVICECHANGE)
                Debug.WriteLine(DateTime.Now.ToString() + " " + "设备发生插拔\r\n");
            return IntPtr.Zero;
这里的 WM.DEVICECHANGE 就是 537 ，关于其他的消息请看win 消息
如果需要获得更多的 USB 信息就建议安装 WpfUsbMonitor 通过这个可以简单知道 USB 是否插入
使用这个的方法很简单，请看下面代码
        public MainWindow()
            InitializeComponent();
            var usbMonitor = new UsbMonitor(this);
            usbMonitor.UsbUpdate += UsbMonitor_UsbUpdate;
        private void UsbMonitor_UsbUpdate(object sender, UsbEventArgs e)
           Debug.WriteLine($@"
USB    { e.Action.ToString()}
USB 名 {e.Name}
USB 类别{e.Class}
USB GUID{e.ClassGuid}");
如果不想安装库，只是需要知道是插入还是拔出，可以使用 WMI 的方法，需要安装 System.Management 更多关于这方面请看 WPF 读取硬件序列号
       public MainWindow()
            InitializeComponent();
            ManagementEventWatcher watcher = new ManagementEventWatcher();
            WqlEventQuery query = new WqlEventQuery("SELECT * FROM Win32_VolumeChangeEvent WHERE EventType = 2 or EventType = 3");
            watcher.EventArrived += (s, e) =>
                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();
        public enum EventType
            Inserted = 2,
            Removed = 3
如果需要知道是哪个设备进行插拔，可以使用下面方法
     public MainWindow()
            InitializeComponent();
            WqlEventQuery insertQuery = new WqlEventQuery("SELECT * FROM __InstanceCreationEvent WITHIN 2 WHERE TargetInstance ISA 'Win32_USBHub'");
            ManagementEventWatcher insertWatcher = new ManagementEventWatcher(insertQuery);
            insertWatcher.EventArrived += (s, e) =>
                Console.WriteLine("插入设备");
                var instance = (ManagementBaseObject) e.NewEvent["TargetInstance"];
                var description = instance.Properties["Description"];
                Console.WriteLine(description.Name + " = " + description.Value);
                var deviceId = instance.Properties["DeviceID"];
                Console.WriteLine(deviceId.Name + " = " + deviceId.Value);
            insertWatcher.Start();
            WqlEventQuery removeQuery = new WqlEventQuery("SELECT * FROM __InstanceDeletionEvent WITHIN 2 WHERE TargetInstance ISA 'Win32_USBHub'");
            ManagementEventWatcher removeWatcher = new ManagementEventWatcher(removeQuery);
            removeWatcher.EventArrived += (s, e) =>
                Console.WriteLine("移除设备");
                var instance = (ManagementBaseObject) e.NewEvent["TargetInstance"];
                var description = instance.Properties["Description"];
                Console.WriteLine(description.Name + " = " + description.Value);
                var deviceId = instance.Properties["DeviceID"];
                Console.WriteLine(deviceId.Name + " = " + deviceId.Value);
            removeWatcher.Start();

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