C# 监测U盘插入与拔出事件

using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Windows.Forms;using System.IO;using Microsoft.Win32;using System.Runtime.InteropServices;using System.Diagnostics;namespace DectUsb{ public partial class Form1 : Form { public const int WM_DEVICECHANGE = 0x219;//U盘插入后，OS的底层会自动检测到，然后向应用程序发送“硬件设备状态改变“的消息 public const int DBT_DEVICEARRIVAL = 0x8000; //就是用来表示U盘可用的。一个设备或媒体已被插入一块，现在可用。 public const int DBT_CONFIGCHANGECANCELED = 0x0019; //要求更改当前的配置（或取消停靠码头）已被取消。 public const int DBT_CONFIGCHANGED = 0x0018; //当前的配置发生了变化，由于码头或取消固定。 public const int DBT_CUSTOMEVENT = 0x8006; //自定义的事件发生。 的Windows NT 4.0和Windows 95：此值不支持。 public const int DBT_DEVICEQUERYREMOVE = 0x8001; //审批要求删除一个设备或媒体作品。任何应用程序也不能否认这一要求，并取消删除。 public const int DBT_DEVICEQUERYREMOVEFAILED = 0x8002; //请求删除一个设备或媒体片已被取消。 public const int DBT_DEVICEREMOVECOMPLETE = 0x8004; //一个设备或媒体片已被删除。 public const int DBT_DEVICEREMOVEPENDING = 0x8003; //一个设备或媒体一块即将被删除。不能否认的。 public const int DBT_DEVICETYPESPECIFIC = 0x8005; //一个设备特定事件发生。 public const int DBT_DEVNODES_CHANGED = 0x0007;//一种设备已被添加到或从系统中删除。 public const int DBT_QUERYCHANGECONFIG = 0x0017;//许可是要求改变目前的配置（码头或取消固定）。 public const int DBT_USERDEFINED = 0xFFFF;//此消息的含义是用户定义的 const int WM_SETTINGCHANGE = 0x001A; const int HWND_BROADCAST = 0xffff; IntPtr result1; public enum SendMessageTimeoutFlags : uint { SMTO_NORMAL = 0x0000, SMTO_BLOCK = 0x0001, SMTO_ABORTIFHUNG = 0x0002, SMTO_NOTIMEOUTIFNOTHUNG = 0x0008 } [DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Auto)] public static extern IntPtr SendMessageTimeout( IntPtr windowHandle, uint Msg, IntPtr wParam, IntPtr lParam, SendMessageTimeoutFlags flags, uint timeout, out IntPtr result ); public void ChangeReg() { //通知所有打开的程序注册表以修改 SendMessageTimeout(new IntPtr(HWND_BROADCAST), WM_SETTINGCHANGE, IntPtr.Zero, IntPtr.Zero, SendMessageTimeoutFlags.SMTO_NORMAL, 1000, out result1); } //[DllImport("shell32.dll")] //public static extern void SHChangeNotify(uint wEventId, uint uFlags, IntPtr dwItem1, IntPtr dwItem2); public Form1() { InitializeComponent(); } public void HidDisk(int n) { RegistryKey rgK = Registry.CurrentUser; RegistryKey rgK1 = rgK.OpenSubKey("Software", true); RegistryKey rgK2 = rgK1.OpenSubKey("Microsoft", true); RegistryKey rgK3 = rgK2.OpenSubKey("Windows", true); RegistryKey rgK4 = rgK3.OpenSubKey("CurrentVersion", true); RegistryKey rgK5 = rgK4.OpenSubKey("Policies", true); RegistryKey rgK6 = rgK5.CreateSubKey("Explorer"); rgK6.SetValue("NoDrives", n); int intvalue = (int)rgK6.GetValue("NoDrives"); rgK1.Close(); rgK2.Close(); rgK3.Close(); rgK4.Close(); rgK5.Close(); rgK6.Close(); MessageBox.Show(intvalue.ToString()); //Process[] ExProcess = System.Diagnostics.Process.GetProcessesByName("Explorer.EXE"); //foreach (Process p in ExProcess) //{ // p.Kill(); // p.WaitForExit(); // p.Close(); //} //System.Threading.Thread.Sleep(10000); //Process pr = new Process(); //ProcessStartInfo ps = new ProcessStartInfo("Explorer.exe"); //pr.StartInfo = ps; //pr.Start(); //SHChangeNotify(0x8000000, 0, IntPtr.Zero, IntPtr.Zero); ChangeReg(); } protected override void WndProc(ref Message m) { try { if (m.Msg == WM_DEVICECHANGE) { switch (m.WParam.ToInt32()) { case WM_DEVICECHANGE: break; case DBT_DEVICEARRIVAL://U盘插入 DriveInfo[] uin = DriveInfo.GetDrives(); foreach (DriveInfo drive in uin) { if (drive.DriveType == DriveType.Removable) { listBox1.Items.Add("U盘已插入，盘符为:" drive.Name.ToString()); // if ((drive.Name.ToString())=="K:\\") // { // HidDisk(16); // } // break; switch (drive.Name.ToString()) { case "G:\\": HidDisk(64); break; case "H:\\": HidDisk(192); break; case "I:\\": HidDisk(384); break; case "J:\\": HidDisk(768); break; case "K:\\": HidDisk(1536); break; case "M:\\": HidDisk(3072); break; case "N:\\": HidDisk(6144); break; case "O:\\": HidDisk(12288); break; default: break; } } } break; case DBT_CONFIGCHANGECANCELED: break; case DBT_CONFIGCHANGED: break; case DBT_CUSTOMEVENT: break; case DBT_DEVICEQUERYREMOVE: break; case DBT_DEVICEQUERYREMOVEFAILED: break; case DBT_DEVICEREMOVECOMPLETE: //U盘卸载 listBox1.Items.Add("U盘被拔出！"); break; case DBT_DEVICEREMOVEPENDING: break; case DBT_DEVICETYPESPECIFIC: break; case DBT_DEVNODES_CHANGED: break; case DBT_QUERYCHANGECONFIG: break; case DBT_USERDEFINED: break; default: break; } } } catch (Exception ex) { MessageBox.Show(ex.Message); } base.WndProc(ref m); } }}