GlukSoft
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« Ответ #4 : 25-11-2003 08:11 » |
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PSD, Смотри в MSDN Hooks, ниже, пример от туда. А если коротко, то на системные события (WH_CALLWNDPROC WH_CBT WH_DEBUG WH_GETMESSAGE WH_KEYBOARD WH_MOUSE WH_MSGFILTER) ты можешь поставить хук (свою функцию).
#define NUMHOOKS 7 // Global variables typedef struct _MYHOOKDATA { int nType; HOOKPROC hkprc; HHOOK hhook; } MYHOOKDATA; MYHOOKDATA myhookdata[NUMHOOKS]; LRESULT WINAPI MainWndProc(HWND hwndMain, UINT uMsg, WPARAM wParam, LPARAM lParam) { static BOOL afHooks[NUMHOOKS]; int index; static HMENU hmenu; switch (uMsg) { case WM_CREATE: // Save the menu handle. hmenu = GetMenu(hwndMain); // Initialize structures with hook data. The menu-item // identifiers are defined as 0 through 6 in the // header file. They can be used to identify array // elements both here and during the WM_COMMAND // message. myhookdata[IDM_CALLWNDPROC].nType = WH_CALLWNDPROC; myhookdata[IDM_CALLWNDPROC].hkprc = CallWndProc; myhookdata[IDM_CBT].nType = WH_CBT; myhookdata[IDM_CBT].hkprc = CBTProc; myhookdata[IDM_DEBUG].nType = WH_DEBUG; myhookdata[IDM_DEBUG].hkprc = DebugProc; myhookdata[IDM_GETMESSAGE].nType = WH_GETMESSAGE; myhookdata[IDM_GETMESSAGE].hkprc = GetMsgProc; myhookdata[IDM_KEYBOARD].nType = WH_KEYBOARD; myhookdata[IDM_KEYBOARD].hkprc = KeyboardProc; myhookdata[IDM_MOUSE].nType = WH_MOUSE; myhookdata[IDM_MOUSE].hkprc = MouseProc; myhookdata[IDM_MSGFILTER].nType = WH_MSGFILTER; myhookdata[IDM_MSGFILTER].hkprc = MessageProc; // Initialize all flags in the array to FALSE. memset(afHooks, FALSE, sizeof(afHooks)); return 0; case WM_COMMAND: switch (LOWORD(wParam)) { // The user selected a hook command from the menu. case IDM_CALLWNDPROC: case IDM_CBT: case IDM_DEBUG: case IDM_GETMESSAGE: case IDM_KEYBOARD: case IDM_MOUSE: case IDM_MSGFILTER: // Use the menu-item identifier as an index // into the array of structures with hook data. index = LOWORD(wParam); // If the selected type of hook procedure isn't // installed yet, install it and check the // associated menu item. if (!afHooks[index]) { myhookdata[index].hhook = SetWindowsHookEx( myhookdata[index].nType, myhookdata[index].hkprc, (HINSTANCE) NULL, GetCurrentThreadId()); CheckMenuItem(hmenu, index, MF_BYCOMMAND | MF_CHECKED); afHooks[index] = TRUE; } // If the selected type of hook procedure is // already installed, remove it and remove the // check mark from the associated menu item. else { UnhookWindowsHookEx(myhookdata[index].hhook); CheckMenuItem(hmenu, index, MF_BYCOMMAND | MF_UNCHECKED); afHooks[index] = FALSE; } default: return (DefWindowProc(hwndMain, uMsg, wParam, lParam)); } break; // // Process other messages. // default: return DefWindowProc(hwndMain, uMsg, wParam, lParam); } return NULL; } /**************************************************************** WH_CALLWNDPROC hook procedure ****************************************************************/ LRESULT WINAPI CallWndProc(int nCode, WPARAM wParam, LPARAM lParam) { CHAR szCWPBuf[256]; CHAR szMsg[16]; HDC hdc; static int c = 0; size_t cch; size_t * pcch; HRESULT hResult; if (nCode < 0) // do not process message return CallNextHookEx(myhookdata[CALLWNDPROC].hhook, nCode, wParam, lParam); // Call an application-defined function that converts a message // constant to a string and copies it to a buffer. LookUpTheMessage((PMSG) lParam, szMsg); hdc = GetDC(hwndMain); switch (nCode) { case HC_ACTION: hResult = StringCchPrintf(szCWPBuf, 256/sizeof(TCHAR), "CALLWNDPROC - tsk: %ld, msg: %s, %d times ", wParam, szMsg, c++); if (FAILED(hResult)) { // TODO: writer error handler } hResult = StringCchLength(szCWPBuf, 256/sizeof(TCHAR), pcch); if (FAILED(hResult)) { // TODO: write error handler } TextOut(hdc, 2, 15, szCWPBuf, *pcch); break; default: break; } ReleaseDC(hwndMain, hdc); return CallNextHookEx(myhookdata[CALLWNDPROC].hhook, nCode, wParam, lParam); } /**************************************************************** WH_GETMESSAGE hook procedure ****************************************************************/ LRESULT CALLBACK GetMsgProc(int nCode, WPARAM wParam, LPARAM lParam) { CHAR szMSGBuf[256]; CHAR szRem[16]; CHAR szMsg[16]; HDC hdc; static int c = 0; size_t cch; size_t * pcch; HRESULT hResult; if (nCode < 0) // do not process message return CallNextHookEx(myhookdata[GETMESSAGE].hhook, nCode, wParam, lParam); switch (nCode) { case HC_ACTION: switch (wParam) { case PM_REMOVE: hResult = StringCchCopy(szRem, 16/sizeof(TCHAR), "PM_REMOVE"); if (FAILED(hResult)) { // TODO: write error handler } break; case PM_NOREMOVE: hResult = StringCchCopy(szRem, 16/sizeof(TCHAR), "PM_NOREMOVE"); if (FAILED(hResult)) { // TODO: write error handler } break; default: hResult = StringCchCopy(szRem, 16/sizeof(TCHAR), "Unknown"); if (FAILED(hResult)) { // TODO: write error handler } break; } // Call an application-defined function that converts a // message constant to a string and copies it to a // buffer. LookUpTheMessage((PMSG) lParam, szMsg); hdc = GetDC(hwndMain); hResult = StringCchPrintf(szMSGBuf, 256/sizeof(TCHAR), "GETMESSAGE - wParam: %s, msg: %s, %d times ", szRem, szMsg, c++); if (FAILED(hResult)) { // TODO: write error handler } hResult = StringCchLength(szMSGBuf, 256/sizeof(TCHAR), pcch); if (FAILED(hResult)) { // TODO: write error handler } TextOut(hdc, 2, 35, szMSGBuf, *pcch); break; default: break; } ReleaseDC(hwndMain, hdc); return CallNextHookEx(myhookdata[GETMESSAGE].hhook, nCode, wParam, lParam); } /**************************************************************** WH_DEBUG hook procedure ****************************************************************/ LRESULT CALLBACK DebugProc(int nCode, WPARAM wParam, LPARAM lParam) { CHAR szBuf[128]; HDC hdc; static int c = 0; size_t cch; size_t * pcch; HRESULT hResult; if (nCode < 0) // do not process message return CallNextHookEx(myhookdata[DEBUG].hhook, nCode, wParam, lParam); hdc = GetDC(hwndMain); switch (nCode) { case HC_ACTION: hResult = StringCchPrintf(szBuf, 128/sizeof(TCHAR), "DEBUG - nCode: %d, tsk: %ld, %d times ", nCode,wParam, c++); if (FAILED(hResult)) { // TODO: write error handler } hResult = StringCchLength(szBuf, 128/sizeof(TCHAR), pcch); if (FAILED(hResult)) { // TODO: write error handler } TextOut(hdc, 2, 55, szBuf, *pcch); break; default: break; } ReleaseDC(hwndMain, hdc); return CallNextHookEx(myhookdata[DEBUG].hhook, nCode, wParam, lParam); } /**************************************************************** WH_CBT hook procedure ****************************************************************/ LRESULT CALLBACK CBTProc(int nCode, WPARAM wParam, LPARAM lParam) { CHAR szBuf[128]; CHAR szCode[128]; HDC hdc; static int c = 0; size_t cch; size_t * pcch; HRESULT hResult; if (nCode < 0) // do not process message return CallNextHookEx(myhookdata[CBT].hhook, nCode, wParam, lParam); hdc = GetDC(hwndMain); switch (nCode) { case HCBT_ACTIVATE: hResult = StringCchCopy(szCode, 128/sizeof(TCHAR), "HCBT_ACTIVATE"); if (FAILED(hResult)) { // TODO: write error handler } break; case HCBT_CLICKSKIPPED: hResult = StringCchCopy(szCode, 128/sizeof(TCHAR), "HCBT_CLICKSKIPPED"); if (FAILED(hResult)) { // TODO: write error handler } break; case HCBT_CREATEWND: hResult = StringCchCopy(szCode, 128/sizeof(TCHAR), "HCBT_CREATEWND"); if (FAILED(hResult)) { // TODO: write error handler } break; case HCBT_DESTROYWND: hResult = StringCchCopy(szCode, 128/sizeof(TCHAR), "HCBT_DESTROYWND"); if (FAILED(hResult)) { // TODO: write error handler } break; case HCBT_KEYSKIPPED: hResult = StringCchCopy(szCode, 128/sizeof(TCHAR), "HCBT_KEYSKIPPED"); if (FAILED(hResult)) { // TODO: write error handler } break; case HCBT_MINMAX: hResult = StringCchCopy(szCode, 128/sizeof(TCHAR), "HCBT_MINMAX"); if (FAILED(hResult)) { // TODO: write error handler } break; case HCBT_MOVESIZE: hResult = StringCchCopy(szCode, 128/sizeof(TCHAR), "HCBT_MOVESIZE"); if (FAILED(hResult)) { // TODO: write error handler } break; case HCBT_QS: hResult = StringCchCopy(szCode, 128/sizeof(TCHAR), "HCBT_QS"); if (FAILED(hResult)) { // TODO: write error handler } break; case HCBT_SETFOCUS: hResult = StringCchCopy(szCode, 128/sizeof(TCHAR), "HCBT_SETFOCUS"); if (FAILED(hResult)) { // TODO: write error handler } break; case HCBT_SYSCOMMAND: hResult = StringCchCopy(szCode, 128/sizeof(TCHAR), "HCBT_SYSCOMMAND"); if (FAILED(hResult)) { // TODO: write error handler } break; default: hResult = StringCchCopy(szCode, 128/sizeof(TCHAR), "Unknown"); if (FAILED(hResult)) { // TODO: write error handler } break; } hResult = StringCchPrintf(szBuf, 128/sizeof(TCHAR), "CBT - nCode: %s, tsk: %ld, %d times ", szCode, wParam, c++); if (FAILED(hResult)) { // TODO: write error handler } hResult = StringCchLength(szBuf, 128/sizeof(TCHAR), pcch); if (FAILED(hResult)) { // TODO: write error handler } TextOut(hdc, 2, 75, szBuf, *pcch); ReleaseDC(hwndMain, hdc); return CallNextHookEx(myhookdata[CBT].hhook, nCode, wParam, lParam); } /**************************************************************** WH_MOUSE hook procedure ****************************************************************/ LRESULT CALLBACK MouseProc(int nCode, WPARAM wParam, LPARAM lParam) { CHAR szBuf[128]; CHAR szMsg[16]; HDC hdc; static int c = 0; size_t cch; size_t * pcch; HRESULT hResult; if (nCode < 0) // do not process the message return CallNextHookEx(myhookdata[MOUSE].hhook, nCode, wParam, lParam); // Call an application-defined function that converts a message // constant to a string and copies it to a buffer. LookUpTheMessage((PMSG) lParam, szMsg); hdc = GetDC(hwndMain); hResult = StringCchPrintf(szBuf, 128/sizeof(TCHAR), "MOUSE - nCode: %d, msg: %s, x: %d, y: %d, %d times ", nCode, szMsg, LOWORD(lParam), HIWORD(lParam), c++); if (FAILED(hResult)) { // TODO: write error handler } hResult = StringCchLength(szBuf, 128/sizeof(TCHAR), pcch); if (FAILED(hResult)) { // TODO: write error handler } TextOut(hdc, 2, 95, szBuf, *pcch); ReleaseDC(hwndMain, hdc); return CallNextHookEx(myhookdata[MOUSE].hhook, nCode, wParam, lParam); } /**************************************************************** WH_KEYBOARD hook procedure ****************************************************************/ LRESULT CALLBACK KeyboardProc(int nCode, WPARAM wParam, LPARAM lParam) { CHAR szBuf[128]; HDC hdc; static int c = 0; size_t cch; size_t * pcch; HRESULT hResult; if (nCode < 0) // do not process message return CallNextHookEx(myhookdata[KEYBOARD].hhook, nCode, wParam, lParam); hdc = GetDC(hwndMain); hResult = StringCchPrintf(szBuf, 128/sizeof(TCHAR), "KEYBOARD - nCode: %d, vk: %d, %d times ", nCode, wParam, c++); if (FAILED(hResult)) { // TODO: write error handler } hResult = StringCchLength(szBuf, 128/sizeof(TCHAR), pcch); if (FAILED(hResult)) { // TODO: write error handler } TextOut(hdc, 2, 115, szBuf, *pcch); ReleaseDC(hwndMain, hdc); return CallNextHookEx(myhookdata[KEYBOARD].hhook, nCode, wParam, lParam); } /**************************************************************** WH_MSGFILTER hook procedure ****************************************************************/ LRESULT CALLBACK MessageProc(int nCode, WPARAM wParam, LPARAM lParam) { CHAR szBuf[128]; CHAR szMsg[16]; CHAR szCode[32]; HDC hdc; static int c = 0; size_t cch; size_t * pcch; HRESULT hResult; if (nCode < 0) // do not process message return CallNextHookEx(myhookdata[MSGFILTER].hhook, nCode, wParam, lParam); switch (nCode) { case MSGF_DIALOGBOX: hResult = StringCchCopy(szCode, 32/sizeof(TCHAR), "MSGF_DIALOGBOX"); if (FAILED(hResult)) { // TODO: write error handler } break; case MSGF_MENU: hResult = StringCchCopy(szCode, 32/sizeof(TCHAR), "MSGF_MENU"); if (FAILED(hResult)) { // TODO: write error handler } break; case MSGF_SCROLLBAR: hResult = StringCchCopy(szCode, 32/sizeof(TCHAR), "MSGF_SCROLLBAR"); if (FAILED(hResult)) { // TODO: write error handler } break; default: hResult = StringCchPrintf(szCode, 128/sizeof(TCHAR), "Unknown: %d", nCode); if (FAILED(hResult)) { // TODO: write error handler } break; } // Call an application-defined function that converts a message // constant to a string and copies it to a buffer. LookUpTheMessage((PMSG) lParam, szMsg); hdc = GetDC(hwndMain); hResult = StringCchPrintf(szBuf, 128/sizeof(TCHAR), "MSGFILTER nCode: %s, msg: %s, %d times ", szCode, szMsg, c++); if (FAILED(hResult)) { // TODO: write error handler } hResult = StringCchLength(szBuf, 128/sizeof(TCHAR), pcch); if (FAILED(hResult)) { // TODO: write error handler } TextOut(hdc, 2, 135, szBuf, *pcch); ReleaseDC(hwndMain, hdc); return CallNextHookEx(myhookdata[MSGFILTER].hhook, nCode, wParam, lParam); }
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