WMI：获取上插入USB设备描述 [英] WMI: Get USB device description on insertion

问题描述

我怎样才能得到一个设备ID和其他说明在插入USB设备？ 我找到了一个例子，如何得到通知有关USB设备插入/拔出。可是如何才能让设备desrtiption信息？

How can I get a device Id and other description on insertion of USB device? I've found an example how to get notified about USB device insertion/removal. But how to get device desrtiption info?

下面是我的code片断：

Here is my code snippet:

WqlEventQuery q;
ManagementScope scope = new ManagementScope("root\\CIMV2");
scope.Options.EnablePrivileges = true;

try
{
    q = new WqlEventQuery();
    q.EventClassName = "__InstanceDeletionEvent";
    q.WithinInterval = new TimeSpan(0, 0, 3);
    q.Condition = @"TargetInstance ISA 'Win32_USBControllerdevice'";
    w = new ManagementEventWatcher(scope, q);
    w.EventArrived += new EventArrivedEventHandler(USBRemoved);
    w.Start();
}
... catch()....

更新：其实，这是具有USB连接的串行COM设备。所以没有DRIVENAME属性。我怎样才能获得USB的描述，我可以在设备管理器中看到了什么？是否WMI提供有关USB插入通知这个信息？

UPDATE: Actually, it is a Serial COM device with USB connection. So there is no driveName property. How can I get USB description, which I can see in Device Manager? Does WMI provide this info with the notification about USB insertion?

推荐答案

完全新的答案根据更新后的答案。您可以检查献给所有的连接USB设备的：

Complete new answer according to your updated answer. You may check für any connected USB device:

        ManagementScope sc =
            new ManagementScope(@"\\YOURCOMPUTERNAME\root\cimv2");

        ObjectQuery query =
            new ObjectQuery("Select * from Win32_USBHub");

        ManagementObjectSearcher searcher = new ManagementObjectSearcher(sc, query);
        ManagementObjectCollection result = searcher.Get();

        foreach (ManagementObject obj in result)
        {
            if (obj["Description"] != null) Console.WriteLine("Description:\t" + obj["Description"].ToString());
            if (obj["DeviceID"] != null) Console.WriteLine("DeviceID:\t" + obj["DeviceID"].ToString());
            if (obj["PNPDeviceID"] != null) Console.WriteLine("PNPDeviceID:\t" + obj["PNPDeviceID"].ToString());
        }

（见 MSDN WMI任务范例）本）

或看看到任何的 COM ConnectedDevice 的

        ManagementScope sc =
            new ManagementScope(@"\\YOURCOMPUTERNAME\root\cimv2");
        ObjectQuery query =
            new ObjectQuery("Select * from Win32_SerialPort");

        searcher = new ManagementObjectSearcher(sc, query);
        result = searcher.Get();

        foreach (ManagementObject obj in result)
        {
            if (obj["Caption"] != null) Console.WriteLine("Caption:\t" + obj["Description"].ToString());
            if (obj["Description"] != null) Console.WriteLine("Description:\t" + obj["DeviceID"].ToString());
            if (obj["DeviceID"] != null) Console.WriteLine("DeviceID:\t" + obj["PNPDeviceID"].ToString());
        }

（见的ActiveX专家了解更多相关信息）

(see ActiveX Experts for further details on this)

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