在放入或取出密钥时获取USB唯一ID

本文关键字：获取 USB 唯一 ID 密钥 | 更新日期: 2023-09-27 17:58:39

在放入/取出USB时，我需要获得唯一的USB ID（而不是卷序列号）。但在所有情况下，"PNPDeviceID"始终为空。我使用的代码是：

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();
    }
}

来源：此

我可以用以下代码获得唯一的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，请告诉我当我放入/取出U盘时，如何将它们组合起来以接收PNPDeviceId（USB GUID）

在放入或取出密钥时获取USB唯一ID

如果直接查询Win32_LogicalDisk类，但没有获得PNPDeviceID属性的值，那么在wmi事件内部使用此类时，也不会获得值。相反，您可以将Win32_DiskDrive类与__InstanceOperationEvent内部事件一起使用。

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