■ 키보드 후킹을 사용해 WIN + C 키를 누를 경우 메모장을 실행하는 방법을 보여준다.
※ 윈도우즈 10 버전에서 코타나 실행도 방지한다.
▶ MainApplication.xaml.cs
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using System; using System.Diagnostics; using System.Runtime.InteropServices; using System.Windows; namespace TestProject; /// <summary> /// 메인 애플리케이션 /// </summary> public partial class MainApplication : Application { //////////////////////////////////////////////////////////////////////////////////////////////////// Delegate ////////////////////////////////////////////////////////////////////////////////////////// Private #region 저수준 키보드 프로시저 - LowLevelKeyboardProcedure(code, wordParameter, longParameter) /// <summary> /// 저수준 키보드 프로시저 /// </summary> /// <param name="code">코드</param> /// <param name="wordParameter">WORD 매개 변수</param> /// <param name="longParameter">LONG 매개 변수</param> /// <returns>처리 결과</returns> private delegate IntPtr LowLevelKeyboardProcedure(int code, IntPtr wordParameter, IntPtr longParameter); #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Import ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Private #region 윈도우즈 후킹 설정하기 (확장) - SetWindowsHookEx(hookID, lowLevelKeyboardProcedure, moduleHandle, threadID) /// <summary> /// 윈도우즈 후킹 설정하기 (확장) /// </summary> /// <param name="hookID">후킹 ID</param> /// <param name="lowLevelKeyboardProcedure">저수준 키보드 프로시저</param> /// <param name="moduleHandle">모듈 핸들</param> /// <param name="threadID">쓰레드 ID</param> /// <returns>처리 결과</returns> [DllImport("user32", CharSet = CharSet.Auto, SetLastError = true)] private static extern IntPtr SetWindowsHookEx(int hookID, LowLevelKeyboardProcedure lowLevelKeyboardProcedure, IntPtr moduleHandle, uint threadID); #endregion #region 윈도우즈 후킹 해제하기 (확장) - UnhookWindowsHookEx(hookHandle) /// <summary> /// 윈도우즈 후킹 해제하기 (확장) /// </summary> /// <param name="hookHandle">후킹 핸들</param> /// <returns>처리 결과</returns> [DllImport("user32", CharSet = CharSet.Auto, SetLastError = true)] [return: MarshalAs(UnmanagedType.Bool)] private static extern bool UnhookWindowsHookEx(IntPtr hookHandle); #endregion #region 다음 후킹 호출하기 (확장) - CallNextHookEx(hookHandle, code, wordParameter, longParameter) /// <summary> /// 다음 후킹 호출하기 (확장) /// </summary> /// <param name="hookHandle">후킹 핸들</param> /// <param name="code">코드</param> /// <param name="wordParameter">WORD 매개 변수</param> /// <param name="longParameter">LONG 매개 변수</param> /// <returns>처리 결과</returns> [DllImport("user32", CharSet = CharSet.Auto, SetLastError = true)] private static extern IntPtr CallNextHookEx(IntPtr hookHandle, int code, IntPtr wordParameter, IntPtr longParameter); #endregion #region 모듈 핸들 구하기 - GetModuleHandle(moduleName) /// <summary> /// 모듈 핸들 구하기 /// </summary> /// <param name="moduleName">모듈명</param> /// <returns>모듈 핸들</returns> [DllImport("kernel32", CharSet = CharSet.Auto, SetLastError = true)] private static extern IntPtr GetModuleHandle(string moduleName); #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 저수준 키보드 프로시저 /// </summary> private static LowLevelKeyboardProcedure _lowLevelKeyboardProcedure = HookCallback; /// <summary> /// 후킹 ID /// </summary> private static IntPtr _hookID = IntPtr.Zero; /// <summary> /// WIN 키 PRESS 여부 /// </summary> private static bool _isWINKeyPressed = false; #endregion ////////////////////////////////////////////////////////////////////////////////////////// Instance //////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// WH_KEYBOARD_LL /// </summary> private const int WH_KEYBOARD_LL = 13; /// <summary> /// WM_KEYDOWN /// </summary> private const int WM_KEYDOWN = 0x0100; /// <summary> /// WM_KEYUP /// </summary> private const int WM_KEYUP = 0x0101; /// <summary> /// WM_SYSKEYDOWN /// </summary> private const int WM_SYSKEYDOWN = 0x0104; /// <summary> /// WM_SYSKEYUP /// </summary> private const int WM_SYSKEYUP = 0x0105; /// <summary> /// VK_LWIN /// </summary> private const int VK_LWIN = 0x5B; /// <summary> /// VK_RWIN /// </summary> private const int VK_RWIN = 0x5C; /// <summary> /// VK_C /// </summary> private const int VK_C = 0x43; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Private #region 후킹 설정하기 - SetHook(lowLevelKeyboardProcedure) /// <summary> /// 후킹 설정하기 /// </summary> /// <param name="lowLevelKeyboardProcedure">저수준 키보드 프로시저</param> /// <returns>처리 결과</returns> private static IntPtr SetHook(LowLevelKeyboardProcedure lowLevelKeyboardProcedure) { using(Process process = Process.GetCurrentProcess()) { using(ProcessModule processModule = process.MainModule) { nint moduleHandle = GetModuleHandle(processModule.ModuleName); return SetWindowsHookEx(WH_KEYBOARD_LL, lowLevelKeyboardProcedure, moduleHandle, 0); } } } #endregion #region 후킹 콜백 처리하기 - HookCallback(code, wordParameter, longParameter) /// <summary> /// 후킹 콜백 처리하기 /// </summary> /// <param name="code">코드</param> /// <param name="wordParameter">WORD 매개 변수</param> /// <param name="longParameter">LONG 매개 변수</param> /// <returns>처리 결과</returns> private static IntPtr HookCallback(int code, IntPtr wordParameter, IntPtr longParameter) { if(code >= 0) { int vkCode = Marshal.ReadInt32(longParameter); if(wordParameter == (IntPtr)WM_KEYDOWN || wordParameter == (IntPtr)WM_SYSKEYDOWN) { if(vkCode == VK_LWIN || vkCode == VK_RWIN) { _isWINKeyPressed = true; } else if(vkCode == VK_C && _isWINKeyPressed) { Process.Start("notepad.exe"); return (IntPtr)1; // 이 주요 이벤트의 추가 처리를 방지한다. } } else if(wordParameter == (IntPtr)WM_KEYUP || wordParameter == (IntPtr)WM_SYSKEYUP) { if(vkCode == VK_LWIN || vkCode == VK_RWIN) { _isWINKeyPressed = false; } } } return CallNextHookEx(_hookID, code, wordParameter, longParameter); } #endregion ////////////////////////////////////////////////////////////////////////////////////////// Instance //////////////////////////////////////////////////////////////////////////////// Protected #region 시작시 처리하기 - OnStartup(e) /// <summary> /// 시작시 처리하기 /// </summary> /// <param name="e">이벤트 인자</param> protected override void OnStartup(StartupEventArgs e) { base.OnStartup(e); _hookID = SetHook(_lowLevelKeyboardProcedure); } #endregion #region 종료시 처리하기 - OnExit(e) /// <summary> /// 종료시 처리하기 /// </summary> /// <param name="e">이벤트 인자</param> protected override void OnExit(ExitEventArgs e) { UnhookWindowsHookEx(_hookID); base.OnExit(e); } #endregion } |
