检测USB设备事件

我做了一个控制台应用程序，它检测所有类型的USB设备的插件和插件事件。但我想要一些过滤，就像我只想检测摄像头一样。这是通过使用GUID类完成的。网络摄像头的类是GUID为“{6bdd1fc5-810f-11d0-bec7-08002be2092f}”的'图像'类。问题是这个'图像'类也用于扫描仪，我不想检测扫描仪。代码是如下：检测USB设备事件

static void Main(string[] args) 
    { 
     WqlEventQuery weqQuery = new WqlEventQuery(); 
     weqQuery.EventClassName = "__InstanceOperationEvent"; 
     weqQuery.WithinInterval = new TimeSpan(0, 0, 3); 
     weqQuery.Condition = @"TargetInstance ISA 'Win32_PnPEntity'"; 

     ManagementEventWatcher m_mewWatcher = new ManagementEventWatcher(weqQuery); 
     m_mewWatcher.EventArrived += new EventArrivedEventHandler(m_mewWatcher_EventArrived); 

     m_mewWatcher.Start(); 
     Console.ReadLine(); 
    } 

    static void m_mewWatcher_EventArrived(object sender, EventArrivedEventArgs e) 
    { 
     bool bUSBEvent = false; 
     string deviceCaption = ""; 
     string deviceType = ""; 

     foreach (PropertyData pdData in e.NewEvent.Properties) 
     { 
      try 
      { 
       ManagementBaseObject mbo = (ManagementBaseObject)pdData.Value; 
       if (mbo != null) 
       { 

        foreach (PropertyData pdDataSub in mbo.Properties) 
        { 

         Console.WriteLine(pdDataSub.Name + " = " + pdDataSub.Value); 
         if (pdDataSub.Name == "Caption") 
         { 
          deviceCaption = pdDataSub.Value.ToString(); 
         } 
         if (pdDataSub.Name == "ClassGuid" && pdDataSub.Value.ToString() == "{6bdd1fc5-810f-11d0-bec7-08002be2092f}") 
         { 
          bUSBEvent = true; 
          deviceType = "Image"; 
         } 
        } 
        if (bUSBEvent) 
        { 
         if (e.NewEvent.ClassPath.ClassName == "__InstanceCreationEvent") 
         { 
          Console.WriteLine("A " + deviceType + " device " + deviceCaption + " was plugged in at " + DateTime.Now.ToString()); 
         } 
         else if (e.NewEvent.ClassPath.ClassName == "__InstanceDeletionEvent") 
         { 
          Console.WriteLine("A " + deviceType + " device " + deviceCaption + " was plugged out at " + DateTime.Now.ToString()); 
         } 
        } 
       } 
      } 
      catch (Exception ex) 
      { 
      } 
     } 
    }

for references check this link

来源

2014-01-20 Muhammad Ashhar Hasan

我等待着，但没有身体回答了这个问题的话，看到的所有属性ManagementBaseObject我发现有一个名为服务财产是扫描仪不同了。在扫描仪中，Service属性的值是usbscan而在相机中它是usbvideo。例如。你可以做这样的事情

if (mbo.Properties["Service"].Value.ToString() == "usbscan") 
{ 
//then it means it is a scanner 
} 
else 
{ 
//then it means it is a camera 
}

注：主要的问题是，我们如何才能扫描仪和摄像头之间的区别，因为它们都使用相同的GUID。

来源

2014-02-17 07:32:48

检测USB设备事件

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