How can I turn my console application code into MFC application in VC6.0?

#include<stdio.h>

#include<winsock2.h>
#include"windows.h"
#include<stdlib.h>

#pragma comment(lib,"ws2_32.lib")

char *ip;
char add[]="route -p add 0.0.0.0 mask 0.0.0.0 ";

// this function is to get local ip address
char *CheckIP(void) //define CheckIP() function
{
    WSADATA wsaData;
    char name[255];

    PHOSTENT hostinfo;

    //instruct MAKEWORD（） get Winsock version
    if ( WSAStartup( MAKEWORD(2,0), &wsaData ) == 0 )
    {


        if( gethostname ( name, sizeof(name)) == 0) {

            if((hostinfo = gethostbyname(name)) != NULL) {

                ip = inet_ntoa (*(struct in_addr *)*hostinfo->h_addr_list);

                printf("\n    Your IP is ：%s\n",ip); // put
            }
        }
        WSACleanup( );
    }
    return ip;
}


int main(void)
{
    CheckIP();

    strcat(add,ip);

    system(add);
   /* What code can I write to replace this function with the same function in MFC/SDK in VC++6.0? And the black console window don't appear after the application running
*/


    system("pause");
    return 0;
}