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在Visual C++应用程序中彻底清除进程[2]
三、程序代码 以下是引用片段： /////////////////////////////////////////////////////////////////////////////////////////// #pragmaonce ////////////////// //Processiterator--iteratoroverallsystemprocesses //Alwaysskipsthefirst(IDLE)processwi
三、程序代码
| 以下是引用片段： /////////////////////////////////////////////////////////////////////////////////////////// #pragma once ////////////////// // Process iterator -- iterator over all system processes // Always skips the first (IDLE) process with PID=0. class CProcessIterator { protected: DWORD* m_pids; // array of procssor IDs DWORD m_count; // size of array DWORD m_current; // next array item public: CProcessIterator(); ~CProcessIterator(); DWORD First(); DWORD Next() { return m_pids && m_current < m_count ? m_pids[m_current++] : 0; } DWORD GetCount() { return m_count; } }; ////////////////// // Handy class to facilitate finding and killing a process by name. class CFindKillProcess { public: CFindKillProcess(); ~CFindKillProcess(); DWORD FindProcess(LPCTSTR lpModname, BOOL bAddExe=TRUE); BOOL KillProcess(DWORD pid, BOOL bZap); }; /////////////////////////////////////////////////////////////////////////////////////////////// #include "stdafx.h" #include "EnumProc.h" // CProcessIterator - Iterates all processes CProcessIterator::CProcessIterator() { m_pids = NULL; } CProcessIterator::~CProcessIterator() { delete [] m_pids; } ////////////////// // Get first process: Call EnumProcesses to init array. Return first one. DWORD CProcessIterator::First() { m_current = (DWORD)-1; m_count = 0; DWORD nalloc = 1024; do { delete [] m_pids; m_pids = new DWORD [nalloc]; if (EnumProcesses(m_pids, nalloc*sizeof(DWORD), &m_count)) { m_count /= sizeof(DWORD); m_current = 1; // skip IDLE process } } while (nalloc <= m_count); return Next(); } //////////////////////////////////////////////////////////////// // CFindKillProcess - to find/kill a process by module name. // CFindKillProcess::CFindKillProcess() {} CFindKillProcess::~CFindKillProcess() {} ////////////////// // Search for process whose module name matches parameter. // Finds "foo" or "foo.exe" DWORD CFindKillProcess::FindProcess(LPCTSTR modname, BOOL bAddExe) { CProcessIterator itp; for (DWORD pid=itp.First(); pid; pid=itp.Next()) { TCHAR name[_MAX_PATH]; CProcessModuleIterator itm(pid); HMODULE hModule = itm.First(); // .EXE if (hModule) { GetModuleBaseName(itm.GetProcessHandle(),hModule, name, _MAX_PATH); string sModName = modname; if (strcmpi(sModName.c_str(),name)==0) return pid; sModName += ".exe"; if (bAddExe && strcmpi(sModName.c_str(),name)==0) return pid; } } return 0; } ////////////////// // Kill a process cleanly: Close main windows and wait. // bZap=TRUE to force kill. BOOL CFindKillProcess::KillProcess(DWORD pid, BOOL bZap) { CMainWindowIterator itw(pid); for (HWND hwnd=itw.First(); hwnd; hwnd=itw.Next()) { DWORD bOKToKill = FALSE; SendMessageTimeout(hwnd, WM_QUERYENDSESSION, 0, 0,SMTO_ABORTIFHUNG|SMTO_NOTIMEOUTIFNOTHUNG,100, &bOKToKill); if (!bOKToKill) return FALSE; // window doesn't want to die: abort PostMessage(hwnd, WM_CLOSE, 0, 0); } // I've closed the main windows; now wait for process to die. BOOL bKilled = TRUE; HANDLE hp=OpenProcess(SYNCHRONIZE|PROCESS_TERMINATE,FALSE,pid); if (hp) { if (WaitForSingleObject(hp, 5000) != WAIT_OBJECT_0) { if (bZap) { // didn't die: force kill it if zap requested TerminateProcess(hp,0); } else { bKilled = FALSE; } } CloseHandle(hp); } return bKilled; } ////////////////////////////////////////////////////////////////////////// #include "stdafx.h" #include "EnumProc.h" #define tpf _tprintf // to save typing typedef list CStringList; // like MFC, but with STL // pre-declare functions int help(); // check for switch: / or - inline BOOL isswitch(TCHAR c) { return c==L'/' || c==L'-'; } int main(int argc, TCHAR* argv[], TCHAR* envp[]) { CStringList cmdargs; // command-line args (processes to kill) BOOL bDisplayOnly=FALSE; // don't kill, just show results BOOL bQuiet=FALSE; // suppress error messages BOOL bZap=FALSE; // force-kill process // Parse command line. Switches can come in any order. for (int i=1; i if (isswitch(argv[i][0])) { for (UINT j=1; j switch(tolower(argv[i][j])) { case '?': help(); return 0; case 'n': bDisplayOnly=TRUE; break; case 'q': bQuiet=TRUE; break; case 'z': bZap=TRUE; break; default: return help(); } } } else { cmdargs.push_back(argv[i]); // got a non-switch arg: add to list } } if (cmdargs.size() <=0) help(); // Now iterate args (module names), killing each one CStringList::iterator it; for (it=cmdargs.begin(); it!=cmdargs.end(); it++) { CFindKillProcess fkp; DWORD pid = fkp.FindProcess(it-> c_str()); if (pid) { if (bDisplayOnly) { tpf(_T("Kill process %d(0x%08x)\n"),pid,pid); } else { fkp.KillProcess(pid, bZap); } } else if (!bQuiet) { tpf(_T("Error: Can't find process '%s'.\n"),it-> c_str()); } } return 0; } int help() { tpf(_T("kp: Kill process from command line.\n")); tpf(_T(" Copyright 2002 Paul DiLascia.\n\n")); tpf(_T(" kp [/nqz?] modname1 [modname2....]\n")); tpf(_T(" where modnameN is a module name; eg foo or foo.exe\n")); tpf(_T("\n")); tpf(_T(" /n(othing) don't kill, just show results\n")); tpf(_T(" /q(uiet) don't show errors\n")); tpf(_T(" /z(ap) force kill (ignore WM_QUERYENDSESSION)\n")); tpf(_T("\n")); return 0; } |
四、小结
本实例通过介绍CfindKillProcess类探讨了在 Windows2000下彻底消除进程的方法，虽然该程序只能在Windows2000环境下编译运行，但是该方法对Windows98下进程的控制也是有借鉴意义的。
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