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

     BOOL bResult =Process32First(hProcessSnap, &pe32);  

     int num();  

     while(bResult)
     {
         //string name = string(pe32.szExeFile);
         char temp[];
         WideCharToMultiByte(CP_ACP, , pe32.szExeFile, -, 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 ;
 }

运行结果：