GET上投入或取出鑰匙

我需要得到把/移除USB獨特的USB ID（而不是卷序列號）USB唯一的ID。但在所有情況下，「PNPDeviceID」始終爲空。這是我使用的代碼是：GET上投入或取出鑰匙

static void Main(string[] args) 
{ 
    const string QUERY = @"select * from __InstanceOperationEvent within 1 where TargetInstance isa 'Win32_LogicalDisk' and (TargetInstance.DriveType=2)"; 
    Program p = new Program(); 
    ManagementEventWatcher w = new ManagementEventWatcher(new WqlEventQuery(QUERY)); 
    w.EventArrived += new EventArrivedEventHandler(p.OnWMIEvent); 
    w.Start(); 
    Console.ReadKey(); 
    w.Stop(); 
} 

public void OnWMIEvent(object sender, EventArrivedEventArgs e) 
{ 
    PropertyData p = e.NewEvent.Properties["TargetInstance"]; 
    if (p != null) 
    { 
     ManagementBaseObject mbo = p.Value as ManagementBaseObject; 
     PropertyData deviceid = mbo.Properties["DeviceID"]; 
     PropertyData drivetype = mbo.Properties["DriveType"]; 
     PropertyData driveSerial = mbo.Properties["VolumeSerialNumber"]; 
     PropertyData driveGUID = mbo.Properties["PNPDeviceID"]; 

     Console.WriteLine("{0}-{1}", "DeviceID",deviceid.Value); 
     Console.WriteLine("{0}-{1}", "DriveType",drivetype.Value); 
     Console.WriteLine("{0}-{1}", "DriveSerial", driveSerial.Value); 
     Console.WriteLine("{0}-{1}", "driveGUID", driveGUID.Value); 
     Console.WriteLine(); 
    } 
}

來源是：this

我可以得到下面的代碼UNIQUE USB ID：

ManagementObjectSearcher theSearcher = 
    new ManagementObjectSearcher("SELECT * FROM Win32_DiskDrive WHERE InterfaceType='USB'"); 

foreach(ManagementObject currentObject in theSearcher.Get()) 
{ 
    Console.WriteLine("{0}-{1}", "PNPDeviceID", currentObject.Properties["PNPDeviceID"].Value);    
}

所以，請你能告訴我怎麼能我結合他們接受PNPDeviceId（USB GUID）當我把/刪除USB棒

來源

2011-06-07 Tiho

如果查詢直接Win32_LogicalDiskç姑娘，你不爲PNPDeviceID屬性獲取值，既不當您使用WMI事件內這個類，你會得到的值。相反，您可以使用Win32_DiskDrive類與__InstanceOperationEvent內部事件。

Select * From __InstanceOperationEvent Within 1 Where TargetInstance ISA 'Win32_DiskDrive' and TargetInstance.InterfaceType='USB'

來源

2011-06-07 18:40:02 RRUZ

GET上投入或取出鑰匙

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