using?System;
using?System.Collections.Generic;
using?System.Text;
using?System.Runtime.InteropServices;
using?System.Reflection;

namespace?BarCodeScan
{
????public?class?BarCodeHook
????{
????????public?delegate?void?BarCodeDelegate（BarCodes?barCode）;
????????public?event?BarCodeDelegate?BarCodeEvent;

????????public?struct?BarCodes
????????{
????????????public?int?VirtKey;??????//虛擬碼???
????????????public?int?ScanCode;?????//掃描碼???
????????????public?string?KeyName;???//鍵名???
????????????public?uint?AscII;???????//AscII???
????????????public?char?Chr;?????????//字符??

????????????public?string?BarCode;???//條碼信息???
????????????public?bool?IsValid;?????//條碼是否有效???
????????????public?DateTime?Time;????//掃描時間???
????????}

????????private?struct?EventMsg
????????{
????????????public?int?message;
????????????public?int?paramL;
????????????public?int?paramH;
????????????public?int?Time;
????????????public?int?hwnd;
????????}

????????[DllImport（“user32.dll“?CharSet?=?CharSet.Auto?CallingConvention?=?CallingConvention.StdCall）]
????????private?static?extern?int?SetWindowsHookEx（int?idHook?HookProc?lpfn?IntPtr?hInstance?int?threadId）;

????????[DllImport（“user32.dll“?CharSet?=?CharSet.Auto?CallingConvention?=?CallingConvention.StdCall）]
????????private?static?extern?bool?UnhookWindowsHookEx（int?idHook）;

????????[DllImport（“user32.dll“?CharSet?=?CharSet.Auto?CallingConvention?=?CallingConvention.StdCall）]
????????private?static?extern?int?CallNextHookEx（int?idHook?int?nCode?Int32?wParam?IntPtr?lParam）;

????????[DllImport（“user32“?EntryPoint?=?“GetKeyNameText“）]
????????private?static?extern?int?GetKeyNameText（int?lParam?StringBuilder?lpBuffer?int?nSize）;

????????[DllImport（“user32“?EntryPoint?=?“GetKeyboardState“）]
????????private?static?extern?int?GetKeyboardState（byte[]?pbKeyState）;

????????[DllImport（“user32“?EntryPoint?=?“ToAscii“）]
????????private?static?extern?bool?ToAscii（int?VirtualKey?int?ScanCode?byte[]?lpKeyState?ref?uint?lpChar?int?uFlags）;

????????delegate?int?HookProc（int?nCode?Int32?wParam?IntPtr?lParam）;
????????BarCodes?barCode?=?new?BarCodes（）;
????????int?hKeyboardHook?=?0;
????????string?strBarCode?=?““;

????????private?int?KeyboardHookProc（int?nCode?Int32?wParam?IntPtr?lParam）
????????{
????????????if?（nCode?==?0）
????????????{
????????????????EventMsg?msg?=?（EventMsg）Marshal.PtrToStructure（lParam?typeof（EventMsg））;

????????????????if?（wParam?==?0x100）???//WM_KEYDOWN?=?0x100???
????????????????{
????????????????????barCode.VirtKey?=?msg.message?&?0xff;?//虛擬碼???
????????????????????barCode.ScanCode?=?msg.paramL?&?0xff;?//掃描碼??

????????????????????StringBuilder?strKeyName?=?new?StringBuilder（255）;
????????????????????if?（GetKeyNameText（barCode.ScanCode?*?65536?strKeyName?255）?>?0）
????????????????????{
????????????????????????barCode.KeyName?=?strKeyName.ToString（）.Trim（new?char[]?{?‘?‘?‘\0‘?}）;
????????????????????}
????????

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

?????文件???????5098??2011-04-21?12:10??BarCodeScan\BarCodeScan\BarCodeHook.cs

?????文件???????3443??2011-04-21?12:37??BarCodeScan\BarCodeScan\BarCodeScan.csproj

?????文件??????17408??2011-04-21?13:37??BarCodeScan\BarCodeScan\bin\Debug\BarCodeScan.exe

?????文件??????42496??2011-04-21?13:37??BarCodeScan\BarCodeScan\bin\Debug\BarCodeScan.pdb

?????文件??????14328??2011-04-21?13:40??BarCodeScan\BarCodeScan\bin\Debug\BarCodeScan.vshost.exe

?????文件????????490??2007-07-21?01:33??BarCodeScan\BarCodeScan\bin\Debug\BarCodeScan.vshost.exe.manifest

?????文件?????574976??2008-06-02?00:00??BarCodeScan\BarCodeScan\bin\Debug\user32.dll

?????文件??????12087??2011-04-21?12:31??BarCodeScan\BarCodeScan\Code39.cs

?????文件????????642??2011-04-21?13:40??BarCodeScan\BarCodeScan\obj\Debug\BarCodeScan.csproj.FileListAbsolute.txt

?????文件????????849??2011-04-21?13:35??BarCodeScan\BarCodeScan\obj\Debug\BarCodeScan.csproj.GenerateResource.Cache

?????文件??????17408??2011-04-21?13:37??BarCodeScan\BarCodeScan\obj\Debug\BarCodeScan.exe

?????文件??????42496??2011-04-21?13:37??BarCodeScan\BarCodeScan\obj\Debug\BarCodeScan.pdb

?????文件????????180??2011-04-21?13:13??BarCodeScan\BarCodeScan\obj\Debug\BarCodeScan.Properties.Resources.resources

?????文件????????180??2011-04-21?13:35??BarCodeScan\BarCodeScan\obj\Debug\BarCodeScan.StartUp.resources

?????文件????????474??2011-04-21?11:28??BarCodeScan\BarCodeScan\Program.cs

?????文件???????1378??2011-04-21?11:27??BarCodeScan\BarCodeScan\Properties\AssemblyInfo.cs

?????文件???????2872??2011-04-21?11:27??BarCodeScan\BarCodeScan\Properties\Resources.Designer.cs

?????文件???????5612??2011-04-21?11:27??BarCodeScan\BarCodeScan\Properties\Resources.resx

?????文件???????1096??2011-04-21?11:27??BarCodeScan\BarCodeScan\Properties\Settings.Designer.cs

?????文件????????249??2011-04-21?11:27??BarCodeScan\BarCodeScan\Properties\Settings.settings

?????文件???????4238??2011-04-21?17:04??BarCodeScan\BarCodeScan\StartUp.cs

?????文件???????4843??2011-04-21?13:33??BarCodeScan\BarCodeScan\StartUp.Designer.cs

?????文件???????5814??2011-04-21?13:33??BarCodeScan\BarCodeScan\StartUp.resx

?????文件????????923??2011-04-21?11:54??BarCodeScan\BarCodeScan.sln

????..A..H.?????37888??2011-04-21?13:51??BarCodeScan\BarCodeScan.suo

?????目錄??????????0??2011-04-21?11:28??BarCodeScan\BarCodeScan\obj\Debug\Refactor

?????目錄??????????0??2011-04-21?11:27??BarCodeScan\BarCodeScan\obj\Debug\TempPE

?????目錄??????????0??2011-04-21?12:57??BarCodeScan\BarCodeScan\bin\Debug

?????目錄??????????0??2011-04-21?13:37??BarCodeScan\BarCodeScan\obj\Debug

?????目錄??????????0??2011-04-21?11:28??BarCodeScan\BarCodeScan\bin

............此處省略7個文件信息