Get_Process Running Time

// ConsoleApplication2.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"


#include <stdio.h>
#include <stdlib.h>
#include <Windows.h>


int _tmain(int argc, LPTSTR argv[])
{
    STARTUPINFO si;
    PROCESS_INFORMATION pi;
    FILETIME TIME_CREATION;
    FILETIME EXIT_TIME;
    FILETIME KERNEL_TIME;
    FILETIME USER_TIME;
    FILETIME TOTAL_TIME;

    ZeroMemory(&si, sizeof(si));
    ZeroMemory(&pi, sizeof(pi));


    CreateProcess(argv[1], argv[2], NULL, NULL, FALSE, 0, NULL, NULL, &si, &pi);
    int a = GetLastError();
    //printf("%d", a);
    if (!a)
    {
        WaitForSingleObject(pi.hProcess, INFINITE);


        if (GetProcessTimes(pi.hProcess, &TIME_CREATION, &EXIT_TIME, &KERNEL_TIME, &USER_TIME))
        {
            int total_run_time = (*((ULONGLONG*)&EXIT_TIME) - *((ULONGLONG*)&TIME_CREATION)) / 10000;
            printf("Run time %dms", total_run_time);
        }

    }

    return 0;
}