notify usb device

Question

Hi , I am writing a code to notify arrival or removal of usb device.I don't know which classes do I have use and what are the objects and events to notify that.Please help me.
Thanks

Answer 1

Hi @kaveh rahimi ，
Here's an example of vb. net you can refer to(code from here).

    Public Enum EventType  
        Inserted = 2  
        Removed = 3  
    End Enum  
    Sub Main()  
        Dim watcher As ManagementEventWatcher = New ManagementEventWatcher()  
        Dim query As WqlEventQuery = New WqlEventQuery("SELECT * FROM Win32_VolumeChangeEvent WHERE EventType = 2 or EventType = 3")  
        AddHandler watcher.EventArrived, AddressOf watcher_EventArrived  
        watcher.Query = query  
        watcher.Start()  
        Console.ReadKey()  
    End Sub  
  
    Private Sub watcher_EventArrived(sender As Object, e As EventArrivedEventArgs)  
        Dim driveName As String = e.NewEvent.Properties("DriveName").Value.ToString()  
        Dim eventType As EventType = CType((Convert.ToInt16(e.NewEvent.Properties("EventType").Value)), EventType)  
        Dim eventName As String = [Enum].GetName(GetType(EventType), eventType)  
        Console.WriteLine("{0}: {1} {2}", DateTime.Now, driveName, eventName)  
    End Sub  

Hope it could be helpful.

Best Regards,
Xingyu Zhao
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Answer 2

Could you please check if this article solve your problem?