Question

我使用此处Detecting USB drive insertion and removal using windows service and c#这样的代码来检测何时插入/移除了USB设备。

但是，当用户“弹出”设备并使其插入电源时，我根本没有收到任何通知。当然，当我尝试访问这种驱动器时，它将失败。

是否可以使用其他WMI事件来获取有关此情况的通知？

@Jimi发布的链接使我更进一步（BIG）。

public void AddWMIWatcher() {
WqlEventQuery query = new WqlEventQuery();
ManagementScope scope = new ManagementScope("root\\CIMV2");
query.EventClassName = "__InstanceOperationEvent";
query.WithinInterval = new TimeSpan(0, 0, 3);
query.Condition = @"TargetInstance ISA 'Win32_DiskDrive' ";
ManagementEventWatcher watcher = new ManagementEventWatcher(scope, query);
watcher.EventArrived += Watcher_EventArrived;
watcher.Query = query;
watcher.Start();
}
private void Watcher_EventArrived(object sender, EventArrivedEventArgs e) {
ManagementBaseObject baseObject = e.NewEvent;

if(baseObject.ClassPath.ClassName.Equals("__InstanceCreationEvent")) {
    Console.WriteLine("A drive was connected");
}
else if(baseObject.ClassPath.ClassName.Equals("__InstanceDeletionEvent")) {
    Console.WriteLine("A drive was removed");
}
else if(baseObject.ClassPath.ClassName.Equals("__InstanceModificationEvent")) {
    Console.WriteLine("A drive was changed");
    //that is what I'm looking for
}

我得到一个__InstanceModificationEvent-我唯一需要了解的是如何从该事件中删除受影响的驱动器（字母）。

使用WMI检测USB弹出事件

0 个答案: