using?System;
using?System.Collections.Generic;
using?System.ComponentModel;
using?System.Data;
using?System.Drawing;
using?System.Text;
using?System.Windows.Forms;
using?System.IO;

namespace?USB
{
????public?partial?class?Form1?:?Form
????{
????????public?const?int?WM_DEVICECHANGE?=?0x219;
????????public?const?int?DBT_DEVICEARRIVAL?=?0x8000;
????????public?const?int?DBT_CONFIGCHANGECANCELED?=?0x0019;
????????public?const?int?DBT_CONFIGCHANGED?=?0x0018;
????????public?const?int?DBT_CUSTOMEVENT?=?0x8006;
????????public?const?int?DBT_DEVICEQUERYREMOVE?=?0x8001;
????????public?const?int?DBT_DEVICEQUERYREMOVEFAILED?=?0x8002;
????????public?const?int?DBT_DEVICEREMOVECOMPLETE?=?0x8004;
????????public?const?int?DBT_DEVICEREMOVEPENDING?=?0x8003;
????????public?const?int?DBT_DEVICETYPESPECIFIC?=?0x8005;
????????public?const?int?DBT_DEVNODES_CHANGED?=?0x0007;
????????public?const?int?DBT_QUERYCHANGECONFIG?=?0x0017;
????????public?const?int?DBT_USERDEFINED?=?0xFFFF;

????????public?Form1（）
????????{
????????????InitializeComponent（）;
????????}

????????private?void?Form1_Load（object?sender?EventArgs?e）
????????{

????????}

????????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盤插入
????????????????????????????DriveInfo[]?s?=?DriveInfo.GetDrives（）;
????????????????????????????foreach?（DriveInfo?drive?in?s）
????????????????????????????{
????????????????????????????????if?（drive.DriveType?==?DriveType.Removable）
????????????????????????????????{
????????????????????????????????????richTextBox1.AppendText（“U盤已插入，盤符為:“?+?drive.Name.ToString（）?+?“\r\n“）;
????????????????????????????????????break;
????????????????????????????????}
????????????????????????????}
????????????????????????????break;
????????????????????????case?DBT_CONFIGCHANGECANCELED:
????????????????????????????MessageBox.Show（“2“）;
????????????????????????????break;
????????????????????????case?DBT_CONFIGCHANGED:
????????????????????????????MessageBox.Show（“3“）;
????????????????????????????break;
????????????????????????case?DBT_CUSTOMEVENT:
????????????????????????????MessageBox.Show（“4“）;
????????????????????????????break;
????????????????????????case?DBT_DEVICEQUERYREMOVE:
????????????????????????????MessageBox.Show（“5“）;
????????????????????????????break;
????????????????????????case?DBT_DEVICEQUERYREMOVEFAILED:
????????????????????????????MessageBox.Show（“6“）;
????????????????????????????break;
????????????????????????case?DBT_DEVICEREMOVECOMPLETE:?//U盤卸載
????????????????????????????richTextBox1.AppendText（“U盤已卸載，盤符為:“）;
????????????????????????????break;
????????????????????????case?DBT_DEVICEREMOVEPENDING:
??????

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????????922??2008-06-24?11:47??C#?串口和USB通信編程\串口\HexCommPort\HexCommPort.sln

????..A..H.?????14848??2008-06-27?09:56??C#?串口和USB通信編程\串口\HexCommPort\HexCommPort.suo

?????文件???????6820??2008-06-24?16:00??C#?串口和USB通信編程\串口\HexCommPort\HexCommPort\Form1.cs

?????文件???????4747??2008-06-24?14:29??C#?串口和USB通信編程\串口\HexCommPort\HexCommPort\Form1.Designer.cs

?????文件???????6008??2008-06-24?14:29??C#?串口和USB通信編程\串口\HexCommPort\HexCommPort\Form1.resx

?????文件???????3229??2008-06-24?12:00??C#?串口和USB通信編程\串口\HexCommPort\HexCommPort\HexCommPort.csproj

?????文件????????470??2008-06-24?11:47??C#?串口和USB通信編程\串口\HexCommPort\HexCommPort\Program.cs

?????文件??????24576??2008-06-24?16:00??C#?串口和USB通信編程\串口\HexCommPort\HexCommPort\bin\Debug\HexCommPort.exe

?????文件??????26112??2008-06-24?16:00??C#?串口和USB通信編程\串口\HexCommPort\HexCommPort\bin\Debug\HexCommPort.pdb

?????文件???????5632??2005-12-08?14:51??C#?串口和USB通信編程\串口\HexCommPort\HexCommPort\bin\Debug\HexCommPort.vshost.exe

?????目錄??????????0??2008-07-04?12:41??C#?串口和USB通信編程\串口\HexCommPort\HexCommPort\bin\Debug

?????目錄??????????0??2008-07-04?12:41??C#?串口和USB通信編程\串口\HexCommPort\HexCommPort\bin

?????文件????????296??2008-06-27?09:54??C#?串口和USB通信編程\串口\HexCommPort\HexCommPort\obj\HexCommPort.csproj.FileList.txt

?????文件????????842??2008-06-24?14:29??C#?串口和USB通信編程\串口\HexCommPort\HexCommPort\obj\Debug\HexCommPort.csproj.GenerateResource.Cache

?????文件??????24576??2008-06-24?16:00??C#?串口和USB通信編程\串口\HexCommPort\HexCommPort\obj\Debug\HexCommPort.exe

?????文件????????180??2008-06-24?14:29??C#?串口和USB通信編程\串口\HexCommPort\HexCommPort\obj\Debug\HexCommPort.Form1.resources

?????文件??????26112??2008-06-24?16:00??C#?串口和USB通信編程\串口\HexCommPort\HexCommPort\obj\Debug\HexCommPort.pdb

?????文件????????180??2008-06-24?12:00??C#?串口和USB通信編程\串口\HexCommPort\HexCommPort\obj\Debug\HexCommPort.Properties.Resources.resources

?????目錄??????????0??2008-07-04?12:41??C#?串口和USB通信編程\串口\HexCommPort\HexCommPort\obj\Debug\Refactor

?????目錄??????????0??2008-07-04?12:41??C#?串口和USB通信編程\串口\HexCommPort\HexCommPort\obj\Debug\TempPE

?????目錄??????????0??2008-07-04?12:41??C#?串口和USB通信編程\串口\HexCommPort\HexCommPort\obj\Debug

?????目錄??????????0??2008-07-04?12:41??C#?串口和USB通信編程\串口\HexCommPort\HexCommPort\obj

?????文件???????1184??2008-06-24?11:47??C#?串口和USB通信編程\串口\HexCommPort\HexCommPort\Properties\AssemblyInfo.cs

?????文件???????2876??2008-06-24?11:47??C#?串口和USB通信編程\串口\HexCommPort\HexCommPort\Properties\Resources.Designer.cs

?????文件???????5612??2008-06-24?11:47??C#?串口和USB通信編程\串口\HexCommPort\HexCommPort\Properties\Resources.resx

?????文件???????1094??2008-06-24?11:47??C#?串口和USB通信編程\串口\HexCommPort\HexCommPort\Properties\Settings.Designer.cs

?????文件????????249??2008-06-24?11:47??C#?串口和USB通信編程\串口\HexCommPort\HexCommPort\Properties\Settings.settings

?????目錄??????????0??2008-07-04?12:41??C#?串口和USB通信編程\串口\HexCommPort\HexCommPort\Properties

?????目錄??????????0??2008-07-04?12:41??C#?串口和USB通信編程\串口\HexCommPort\HexCommPort

?????目錄??????????0??2008-07-04?12:41??C#?串口和USB通信編程\串口\HexCommPort

............此處省略75個文件信息