从系统插入/拔出USB以及其他操作

Question

我有将USB设备插入系统或从系统中拔出时发送电子邮件的请求。我使用ManagementEventWatcher来捕获此类事件。不过，我们遇到的情况是，USB驱动器出了点问题，并且它在某种程度上从系统中消失了（没有物理拔下）。我们尚未注意到任何通知，这意味着该事件似乎不在我们已使用的范围之内。有什么我可以添加到我的应用程序中来处理其他事情的工具，而不是像usb电源问题之类的Justus即插即用或其他与此有关的方法吗？请参阅下面的代码：

Imports System.Management

Public Class Usb
    Public Event ReportEvent(information As String)
    Private WithEvents _mediaConnectWatcher As ManagementEventWatcher 
    Private _usbDriveName As String
    Private _uUsbDriveLetter As String

    Private Enum InterfaceDriveType
        Usb
    End Enum

    Private Async Function StartDetection() As Task
            ' __InstanceOperationEvent will trap both Creation and Deletion of class instances
            Dim query2 As New WqlEventQuery("SELECT * FROM __InstanceOperationEvent WITHIN 1 " _
                                            & "WHERE TargetInstance ISA 'Win32_DiskDrive'")

        _mediaConnectWatcher = New ManagementEventWatcher
        _mediaConnectWatcher.Query = query2

            'AddHandler  _mMediaConnectWatcher.EventArrived, AddressOf Arrived
            Dim t As Task= Task.Run(sub() _mediaConnectWatcher.Start())    
            Await t          
    End Function

    Public sub Arrived(sender As Object, e As EventArrivedEventArgs) Handles _mediaConnectWatcher.EventArrived
        Try
            'If InvokeRequired Then
            '    Invoke(New Action(Of Object, EventArrivedEventArgs)(AddressOf Arrived), sender, e)
            'Else
            Dim mbo, obj As ManagementBaseObject
            'the first thing we have to do is figure out if this is a creation or deletion event
            mbo = e.NewEvent
            'next we need a copy of the instance that was either created or deleted
            obj = CType(mbo("TargetInstance"), ManagementBaseObject)

            Select Case mbo.ClassPath.ClassName
                Case "__InstanceCreationEvent"
                    If String.Compare(obj("InterfaceType").ToString(), InterfaceDriveType.Usb.ToString, ignoreCase := true) = 0 Then

                        'ListBox1.Items.Add($"Interface type: {obj("InterfaceType")} Caption: {obj("Caption")} Drive letter: {GetDriveLetterFromDisk(obj("name"))} has been plugged in")
                        RaiseEvent ReportEvent($"Interface type: {obj("InterfaceType")} Caption: {obj("Caption")} Drive letter: {GetDriveLetterFromDisk(obj("name"))} has been plugged in")
                    Else
                        'ListBox1.Items.Add($"Interface: {obj("InterfaceType")}")
                        'RaiseEvent ReportEvent($"Interface: {obj("InterfaceType")}")
                    End If
                Case "__InstanceDeletionEvent"
                    If String.Compare(obj("InterfaceType").ToString(), InterfaceDriveType.Usb.ToString, ignoreCase := true) = 0 Then
                        'ListBox1.Items.Add($"Interface type: {obj("InterfaceType")} Caption: {obj("Caption")} has been unplugged")
                        RaiseEvent ReportEvent($"Interface type: {obj("InterfaceType")} Caption: {obj("Caption")} has been unplugged")
                        If obj("Caption") = _usbDriveName Then
                            _uUsbDriveLetter = String.Empty
                            _usbDriveName = String.Empty
                        End If
                    Else
                        'ListBox1.Items.Add($"Interface: {obj("InterfaceType")}")
                    End If
                Case Else
                    'ListBox1.Items.Add($"nope: {obj("Caption")}")
            End Select
            'End If

        Catch ex As Exception

        End Try
    End sub

    Private Function GetDriveLetterFromDisk(name As String) As String
        Try
           Dim oqPart, oqDisk As ObjectQuery
            Dim mosPart, mosDisk As ManagementObjectSearcher
            Dim objPart, objDisk As ManagementObject
            Dim ans = String.Empty

            ' WMI queries use the "\" as an escape charcter
           name = Replace(name, "\", "\\")

            ' First we map the Win32_DiskDrive instance with the association called
            ' Win32_DiskDriveToDiskPartition. Then we map the Win23_DiskPartion
            ' instance with the assocation called Win32_LogicalDiskToPartition
            oqPart = New ObjectQuery("ASSOCIATORS OF {Win32_DiskDrive.DeviceID=""" & name & """} WHERE AssocClass = Win32_DiskDriveToDiskPartition")
            mosPart = New ManagementObjectSearcher(oqPart)
            For Each objPart In mosPart.Get()

                oqDisk = New ObjectQuery("ASSOCIATORS OF {Win32_DiskPartition.DeviceID=""" & objPart("DeviceID") & """} WHERE AssocClass = Win32_LogicalDiskToPartition")
                mosDisk = New ManagementObjectSearcher(oqDisk)
                For Each objDisk In mosDisk.Get()
                    ans &= objDisk("name") & ","
                Next
            Next

            Return ans.Trim(","c)
        Catch ex As Exception
            Return Nothing
        End Try
    End Function

    Public Async function StartService() As task
      await  StartDetection()     
    End function

    'Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
    '    m_MediaConnectWatcher.Stop()
    '    Application.Exit()
    'End Sub

    Public Sub StopService()
        _mediaConnectWatcher.Stop()
    End Sub



End Class