[C/C++]_[初级]_[通过映像名称判断进程是否存在]

场景

1.有时候通过查询进程映像名称来判断某个程序是否在执行, 比如判断 adb.exe 是否正在运行, 从而不需要再次开启 adb进程; 或者某个服务是否开启, 比如AppleMobileDeviceService.exe 来判断是否启动了Apple移动设备服务, 从而提醒用户.

代码

1.如果查询的多个进程有存在的,即返回TRUE.

// test-process.cpp : 定义控制台应用程序的入口点。//#include "stdafx.h"#include <Windows.h>#include <TlHelp32.h>#include <Shlwapi.h>#include <iostream>BOOL FailedBlacklist(WCHAR *wcBlacklist){    if(wcBlacklist == NULL) return FALSE;    //make Copy    WCHAR *wcBlacklistCopy = (WCHAR *) HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, (wcslen(wcBlacklist) + 2) * sizeof(WCHAR));     memcpy(wcBlacklistCopy, wcBlacklist, wcslen(wcBlacklist) * sizeof(WCHAR));    INT32 iBlacklistLen = wcslen(wcBlacklistCopy);    for(INT32 iIterate = 0; iIterate < iBlacklistLen; iIterate++)    {        if(wcBlacklistCopy[iIterate] == L';')            wcBlacklistCopy[iIterate] = 0x0000;    }    BOOL bProcessMatch = FALSE;    //iterate list    WCHAR *wcProcName = wcBlacklistCopy;    while ((*wcProcName) && !bProcessMatch)//Go through each one until we hit a null.    {        //iterate processes        HANDLE hProcessSnap = INVALID_HANDLE_VALUE;        PROCESSENTRY32 pe32;        hProcessSnap = CreateToolhelp32Snapshot(TH32CS_SNAPALL, 0);        if(hProcessSnap == INVALID_HANDLE_VALUE)            {            if(wcBlacklistCopy != NULL) HeapFree(GetProcessHeap(), 0, wcBlacklistCopy);            return FALSE;        }        pe32.dwSize = sizeof(PROCESSENTRY32);        if(!Process32First(hProcessSnap, &pe32))         {            if(wcBlacklistCopy != NULL) HeapFree(GetProcessHeap(), 0, wcBlacklistCopy);            return FALSE;        }        do        {            if(PathMatchSpecW(pe32.szExeFile, wcProcName))  //Check to see if the current string matches the spec                bProcessMatch = TRUE;           }while(Process32Next(hProcessSnap, &pe32));        CloseHandle(hProcessSnap);        if(!bProcessMatch) wcProcName += wcslen(wcProcName) + 1;        }    if(wcBlacklistCopy != NULL) HeapFree(GetProcessHeap(), 0, wcBlacklistCopy);    return bProcessMatch;}int _tmain(int argc, _TCHAR* argv[]){    std::cout << FailedBlacklist(L"notepad.exe;chrome.exe") << std::endl;    return 0;}

参考

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