使用windows服务和c#检测USB驱动器的插入和移除
使用windows服务和c#检测USB驱动器的插入和移除
提问于 2009-03-06 19:40:51
探索构建USB分布式应用程序的可能性
它将在插入U盘时自动启动，并在取出U盘时关闭
将使用.Net和C#。
正在寻找如何使用C#解决此问题的建议？
更新:将其实现为服务的两种可能的解决方案。
- override WndProc
或
通过ManagementEventWatcher使用WMI查询
回答 10
Stack Overflow用户
回答已采纳
发布于 2010-06-07 18:08:40
你可以使用WMI，它很简单，而且比使用服务的WndProc解决方案要好得多。
下面是一个简单的例子：
using System.Management;
ManagementEventWatcher watcher = new ManagementEventWatcher();
WqlEventQuery query = new WqlEventQuery("SELECT * FROM Win32_VolumeChangeEvent WHERE EventType = 2");
watcher.EventArrived += new EventArrivedEventHandler(watcher_EventArrived);
watcher.Query = query;
watcher.Start();
watcher.WaitForNextEvent();Stack Overflow用户
发布于 2013-10-18 03:41:13
这对我来说很好用，另外你还可以找到更多关于这个设备的信息。
using System.Management;
private void DeviceInsertedEvent(object sender, EventArrivedEventArgs e)
{
ManagementBaseObject instance = (ManagementBaseObject)e.NewEvent["TargetInstance"];
foreach (var property in instance.Properties)
{
Console.WriteLine(property.Name + " = " + property.Value);
}
}
private void DeviceRemovedEvent(object sender, EventArrivedEventArgs e)
{
ManagementBaseObject instance = (ManagementBaseObject)e.NewEvent["TargetInstance"];
foreach (var property in instance.Properties)
{
Console.WriteLine(property.Name + " = " + property.Value);
}
}
private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
{
WqlEventQuery insertQuery = new WqlEventQuery("SELECT * FROM __InstanceCreationEvent WITHIN 2 WHERE TargetInstance ISA 'Win32_USBHub'");
ManagementEventWatcher insertWatcher = new ManagementEventWatcher(insertQuery);
insertWatcher.EventArrived += new EventArrivedEventHandler(DeviceInsertedEvent);
insertWatcher.Start();
WqlEventQuery removeQuery = new WqlEventQuery("SELECT * FROM __InstanceDeletionEvent WITHIN 2 WHERE TargetInstance ISA 'Win32_USBHub'");
ManagementEventWatcher removeWatcher = new ManagementEventWatcher(removeQuery);
removeWatcher.EventArrived += new EventArrivedEventHandler(DeviceRemovedEvent);
removeWatcher.Start();
// Do something while waiting for events
System.Threading.Thread.Sleep(20000000);
}Stack Overflow用户
发布于 2012-12-12 02:23:43
添加到VitalyB的帖子中。
要引发插入任何 USB设备的事件，请使用以下命令：
var watcher = new ManagementEventWatcher();
var query = new WqlEventQuery("SELECT * FROM Win32_DeviceChangeEvent WHERE EventType = 2");
watcher.EventArrived += new EventArrivedEventHandler(watcher_EventArrived);
watcher.Query = query;
watcher.Start();这将在插入USB设备时引发事件。它甚至可以与National Instruments DAQ一起工作，我正在尝试自动检测它。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/620144
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