三、程序代码
//////////////////////////////////////////////////////
#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<string> 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<argc; i++) {
if (isswitch(argv[i][0])) {
for (UINT j=1; j<strlen(argv[i]); 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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计算机技术与应用 → 『 C/C++编程思想 』 → 用Visual C++干干净净地清除进程
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2008/4/9 9:52:00
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用Visual C++干干净净地清除进程