//监听进程id是否退出
//@params:cur_pid:进程id
//@return:退出时候，会弹弹窗提示
bool ListenExitProcesses(DWORD cur_pid)   
{  
  PROCESSENTRY32 pe32;  
  pe32.dwSize = sizeof(pe32); 

  HANDLE hProcessSnap = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
  if(hProcessSnap == INVALID_HANDLE_VALUE) {  
    cout << "CreateToolhelp32Snapshot Error!" << endl;;  
    return false;  
  }  

  BOOL bResult =Process32First(hProcessSnap, &pe32);  
  BOOL bContinue = true; //为false才退出
  bool bRe = true;
  while (bContinue)
  {
    bRe = true;
    //需要重新获取进程id
    hProcessSnap = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
    bResult = Process32First(hProcessSnap, &pe32);  //遍历第一个
    while (bResult)
    {
      int id = pe32.th32ProcessID;  
      if (id == cur_pid)
      {
        bResult = false;
        bRe = false;
        break;
      }
      bResult = Process32Next(hProcessSnap,&pe32);
    }
    if (bRe== true)
    {
      MessageBox(0,L"进程退出",L"进程退出",0);
      //break;
      bContinue = false;
      break;
    }
  }
  CloseHandle(hProcessSnap);  

  return true;  
}