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ポータブル デバイス、特に samsung phone や iphone の検出に問題があります。ポータブル プラグインを検出すると開始し、プラグアウトすると停止するプログラムを開発する必要があります。

私はこのコードを試してみましたが、ストレージを備えた USB デバイスでのみ機能し、ポータブル デバイスでは機能しません。

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);
    }
}

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);
}

助けてください。ありがとう

4

1 に答える 1

1

これを試しましたか：

System.IO.DriveInfo [] drives = System.IO.DriveInfo.GetDrives ();
foreach (System.IO.DriveInfo drive in drives)
{
  if (drive.DriveType == DriveType.Removable)
  {
    Console.WriteLine ("Found removable drive {0}", drive.Name);
  }
}

DriveInfoについての詳細

于 2014-06-18T07:12:09.903 に答える