C++获取Windows7 32位系统中所有进程名（类似于任务管理器中的进程）

代码是网上查找资料，然后自己调试，修改之后可以运行。

系统：win7 32位，VS2008

-----------------------------------------------------------------------代码------------------------------------------------------------------------------------

#include <iostream>  
#include <string>  
#include <map>  
#include <windows.h>  
#include <TlHelp32.h> 
using namespace std;  

bool traverseProcesses(map<string, int>& _nameID)   
{  
    PROCESSENTRY32 pe32;  
    pe32.dwSize = sizeof(pe32); 

    HANDLE hProcessSnap = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);//获取进程快照  
    if(hProcessSnap == INVALID_HANDLE_VALUE) {  
        cout << "CreateToolhelp32Snapshot Error!" << endl;;  
        return false;  
    }  

    BOOL bResult =Process32First(hProcessSnap, &pe32);  

    int num(0);  

    while(bResult)   
    {  
        //string name = string(pe32.szExeFile);
        char temp[300];
        WideCharToMultiByte(CP_ACP, 0, pe32.szExeFile, -1, temp, sizeof(temp), NULL, NULL);
        string name = string(temp);
        int id = pe32.th32ProcessID;  

        cout << "[" << ++num << "] : " <<"Process Name:" 
            << name << "  " << "ProcessID:" << id<< endl;  

        _nameID.insert(pair<string, int>(name, id)); //字典存储  
        bResult = Process32Next(hProcessSnap,&pe32);  
    }  

    CloseHandle(hProcessSnap);  

    return true;  
}  

int main()  
{  
    map<string, int> _nameID;  

    if (!traverseProcesses(_nameID)) {  
        cout << "Start Process Error!" << endl;  
    }  

    return 0;  
}

 运行结果：