问使用windows服务和c#检测USB驱动器的插入和移除

EN

using System.Management;

ManagementEventWatcher watcher = new ManagementEventWatcher();
WqlEventQuery query = new WqlEventQuery("SELECT * FROM Win32_VolumeChangeEvent WHERE EventType = 2");
watcher.EventArrived += new EventArrivedEventHandler(watcher_EventArrived);
watcher.Query = query;
watcher.Start();
watcher.WaitForNextEvent();

using System.Management;

private void DeviceInsertedEvent(object sender, EventArrivedEventArgs e)
{
    ManagementBaseObject instance = (ManagementBaseObject)e.NewEvent["TargetInstance"];
    foreach (var property in instance.Properties)
    {
        Console.WriteLine(property.Name + " = " + property.Value);
    }
}

private void DeviceRemovedEvent(object sender, EventArrivedEventArgs e)
{
    ManagementBaseObject instance = (ManagementBaseObject)e.NewEvent["TargetInstance"];
    foreach (var property in instance.Properties)
    {
        Console.WriteLine(property.Name + " = " + property.Value);
    }
}            

private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
{
    WqlEventQuery insertQuery = new WqlEventQuery("SELECT * FROM __InstanceCreationEvent WITHIN 2 WHERE TargetInstance ISA 'Win32_USBHub'");

    ManagementEventWatcher insertWatcher = new ManagementEventWatcher(insertQuery);
    insertWatcher.EventArrived += new EventArrivedEventHandler(DeviceInsertedEvent);
    insertWatcher.Start();

    WqlEventQuery removeQuery = new WqlEventQuery("SELECT * FROM __InstanceDeletionEvent WITHIN 2 WHERE TargetInstance ISA 'Win32_USBHub'");
    ManagementEventWatcher removeWatcher = new ManagementEventWatcher(removeQuery);
    removeWatcher.EventArrived += new EventArrivedEventHandler(DeviceRemovedEvent);
    removeWatcher.Start();

    // Do something while waiting for events
    System.Threading.Thread.Sleep(20000000);
}

using System.Management;

public partial class MainForm : Form
{
    public MainForm()
    {
        InitializeComponent();

        bgwDriveDetector.DoWork += bgwDriveDetector_DoWork;
        bgwDriveDetector.RunWorkerAsync();
    }

    private void DeviceInsertedEvent(object sender, EventArrivedEventArgs e)
    {
        string driveName = e.NewEvent.Properties["DriveName"].Value.ToString();
        MessageBox.Show(driveName + " inserted");
    }

    private void DeviceRemovedEvent(object sender, EventArrivedEventArgs e)
    {
        string driveName = e.NewEvent.Properties["DriveName"].Value.ToString();
        MessageBox.Show(driveName + " removed");
    }

    void bgwDriveDetector_DoWork(object sender, DoWorkEventArgs e)
    {
        var insertQuery = new WqlEventQuery("SELECT * FROM Win32_DeviceChangeEvent WHERE EventType = 2");
        var insertWatcher = new ManagementEventWatcher(insertQuery);
        insertWatcher.EventArrived += DeviceInsertedEvent;
        insertWatcher.Start();

        var removeQuery = new WqlEventQuery("SELECT * FROM Win32_DeviceChangeEvent WHERE EventType = 3");
        var removeWatcher = new ManagementEventWatcher(removeQuery);
        removeWatcher.EventArrived += DeviceRemovedEvent;
        removeWatcher.Start();
    }
}