#include <iostream>
#include <Windows.h>
#include <tlhelp32.h>
#include <string>
#include <vector>

using namespace std;

vector<DWORD> GetProceeIDfromParentID(DWORD& dwParentProcessId)
{
  vector<DWORD> parent_id_vec;
  DWORD dwProcessID = 0;

  //进行一个进程快照
  HANDLE hProcessSnap = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
  if (hProcessSnap == INVALID_HANDLE_VALUE)
  {
    cout << ("进程快照失败");
    return parent_id_vec;
  }

  PROCESSENTRY32 pe;
  TCHAR procID[100] = { 0 };
  pe.dwSize = sizeof(pe);
  BOOL bProcess = Process32First(hProcessSnap, &pe);
  //遍历所有进程
  while (bProcess)
  {
    if (pe.th32ParentProcessID == dwParentProcessId)//判断如果父id与其pid相等，
    {

      dwProcessID = pe.th32ProcessID;
      parent_id_vec.push_back(dwProcessID);
    }
    bProcess = Process32Next(hProcessSnap, &pe);
  }
  CloseHandle(hProcessSnap);
  return parent_id_vec;
}

int main()
{
  DWORD parent_id = 17280;
  vector<DWORD> child_id_vector = GetProceeIDfromParentID(parent_id);

}