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public class HookHandler
{
    public void InitializeHook(Visual visual)
    {
        HwndSource hwndSource = PresentationSource.FromVisual(visual) as HwndSource;//窗口过程

        if (hwndSource != null)
        {
            hwndSource.AddHook(new HwndSourceHook(WndProc));//挂钩
        }
    }

    public const int WM_DEVICECHANGE = 0x219;//U盘插入后,OS的底层会自动检测到,然后向应用程序发送“硬件设备状态改变“的消息
    public const int DBT_DEVICEARRIVAL = 0x8000;  //就是用来表示U盘可用的。一个设备或媒体已被插入一块,现在可用。
    public const int DBT_CONFIGCHANGECANCELED = 0x0019;  //要求更改当前的配置(或取消停靠码头)已被取消。
    public const int DBT_CONFIGCHANGED = 0x0018;  //当前的配置发生了变化,由于码头或取消固定。
    public const int DBT_CUSTOMEVENT = 0x8006; //自定义的事件发生。 的Windows NT 4.0和Windows 95:此值不支持。
    public const int DBT_DEVICEQUERYREMOVE = 0x8001;  //审批要求删除一个设备或媒体作品。任何应用程序也不能否认这一要求,并取消删除。
    public const int DBT_DEVICEQUERYREMOVEFAILED = 0x8002;  //请求删除一个设备或媒体片已被取消。
    public const int DBT_DEVICEREMOVECOMPLETE = 0x8004;  //一个设备或媒体片已被删除。
    public const int DBT_DEVICEREMOVEPENDING = 0x8003;  //一个设备或媒体一块即将被删除。不能否认的。
    public const int DBT_DEVICETYPESPECIFIC = 0x8005;  //一个设备特定事件发生。
    public const int DBT_DEVNODES_CHANGED = 0x0007;  //一种设备已被添加到或从系统中删除。
    public const int DBT_QUERYCHANGECONFIG = 0x0017;  //许可是要求改变目前的配置(码头或取消固定)。
    public const int DBT_USERDEFINED = 0xFFFF;  //此消息的含义是用户定义的
    public const uint GENERIC_READ = 0x80000000;
    public const int GENERIC_WRITE = 0x40000000;
    public const int FILE_SHARE_READ = 0x1;
    public const int FILE_SHARE_WRITE = 0x2;
    public const int IOCTL_STORAGE_EJECT_MEDIA = 0x2d4808;

    private IntPtr WndProc(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
    {
        if (msg == WM_DEVICECHANGE)
        {
            switch (wParam.ToInt32())
            {
                case DBT_DEVICEARRIVAL:
                    HandleUSBHookMonition();
                    break;
                case DBT_DEVICEREMOVECOMPLETE:
                    HandleUSBHookMonition();
                    break;
                default:
                    break;
            }
        }
        return IntPtr.Zero;
    }

    private void HandleUSBHookMonition()
    {
    
    }
}

How to use

private async void MainWindow_Loaded(object sender, RoutedEventArgs e)
{
    this.Loaded -= MainWindow_Loaded;

    InitializeHook(this);
}

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