[英]How do I detect when a removable disk is inserted using C#?
I'm just concerned about Windows, so there's no need to go into esoterica about Mono compatibility or anything like that. 我只关心Windows,因此没有必要进入关于Mono兼容性或类似的东西的esoterica。
I should also add that the app that I'm writing is WPF, and I'd prefer to avoid taking a dependency on System.Windows.Forms
if at all possible. 我还应该补充一点,我正在编写的应用程序是WPF,如果可能的话,我宁愿避免依赖
System.Windows.Forms
。
Give this a shot... 试一试......
using System;
using System.Collections.Generic;
using System.Text;
using System.Management;
namespace WMITestConsolApplication
{
class Program
{
static void Main(string[] args)
{
AddInsertUSBHandler();
AddRemoveUSBHandler();
while (true) {
}
}
static ManagementEventWatcher w = null;
static void AddRemoveUSBHandler()
{
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 += USBRemoved;
w.Start();
}
catch (Exception e) {
Console.WriteLine(e.Message);
if (w != null)
{
w.Stop();
}
}
}
static void AddInsertUSBHandler()
{
WqlEventQuery q;
ManagementScope scope = new ManagementScope("root\\CIMV2");
scope.Options.EnablePrivileges = true;
try {
q = new WqlEventQuery();
q.EventClassName = "__InstanceCreationEvent";
q.WithinInterval = new TimeSpan(0, 0, 3);
q.Condition = "TargetInstance ISA 'Win32_USBControllerdevice'";
w = new ManagementEventWatcher(scope, q);
w.EventArrived += USBInserted;
w.Start();
}
catch (Exception e) {
Console.WriteLine(e.Message);
if (w != null)
{
w.Stop();
}
}
}
static void USBInserted(object sender, EventArgs e)
{
Console.WriteLine("A USB device inserted");
}
static void USBRemoved(object sender, EventArgs e)
{
Console.WriteLine("A USB device removed");
}
}
}
There are much less cumbersome ways of doing this than using WMI polling - just capture WM_DEVICECHANGE: 与使用WMI轮询相比,执行此操作的方法要少得多 - 只需捕获WM_DEVICECHANGE:
http://msdn.microsoft.com/en-us/library/aa363215.aspx http://msdn.microsoft.com/en-us/library/aa363215.aspx
The simplest way would be to create an Autoplay Handler: 最简单的方法是创建一个自动播放处理程序:
http://www.codeproject.com/KB/system/AutoplayDemo.aspx http://www.codeproject.com/KB/system/AutoplayDemo.aspx
Autoplay Version 2 is a feature in Windows XP that will scan the first four levels of a removable media, when it arrives, looking for media content types (music, graphics, or video).
自动播放版本2是Windows XP中的一项功能,它将扫描可移动媒体的前四个级别,当它到达时,查找媒体内容类型(音乐,图形或视频)。 Registration of applications is done on a content type basis.
应用程序的注册是基于内容类型完成的。 When a removable media arrives, Windows XP determines what actions to perform by evaluating the content and comparing it to registered handlers for that content.
当可移动媒体到达时,Windows XP通过评估内容并将其与该内容的注册处理程序进行比较来确定要执行的操作。
A detailed MSDN article is also available. 还提供详细的MSDN文章 。
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