Link with *.lib and send result value to Qt form?!

First of all Hi...

This is my first post... I need some help!

I have made some code for reading from parallel port. It work very good compiled with VSC++ like console application... It read LPT 1 sending results to screen and to file...

When I tried to compile with qt, my first problem is that I need to call 3 *.lib for LPT communication...(or load dll library! how)

Second problem is how to send result value to Qt form?!

Code:

#include <stdafx.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <math.h>
#include <iostream> 
#include <windows.h>
 
#define E 8
#define DIN 32
#define CS 64
#define CLK 128
#define DOUT 128
#define LPT 888
#define vref 2.5
 
 
short _stdcall Inp32(short PortAddress);
void _stdcall Out32(short PortAddress, short data);
 
 
int main()
{
	int prs, lima, p, limas, ps;					
	int ks, k, i, c, s;									
	int CONF[8]= {142,206,158,222,174,238,190,254};		
	double volt[20], voltr[4], temp[4], DATO;			
 
	FILE * f_one;
	f_one = fopen("a_m.txt", "w+");
 
	for (s=0; s<=2; s++)									
	{
		for (c=1; c<=8; c++)								
		{
			for (i=7; i>-1; i--)
			{
			lima=pow(2.0,i);
			p=CONF[c]&lima; 
			if (p==lima) {Out32(LPT,DIN+E);}
			else Out32(LPT,E); 
			Out32(LPT,E+CLK);
			Out32(LPT,E);
			}														
					DATO=0;
					for (i=11; i>-1; i--)
					{
						Out32(LPT,E+CLK);
						Out32(LPT,E);
						ps=Inp32(LPT+1)&DOUT;
						limas=pow(2.0,i);
						if (ps==0) {DATO=(DATO+limas);}
					}										
 
				Out32(LPT,E+CS);
				k=(c+8*s);
				if (k<=20) 
					{volt[k] = DATO * (vref / 4095);
					printf (" %.2f", volt[k]);                           //print to screen
					fprintf (f_one,"%.2f ", volt[k]);}		 //print to file
				if (k>20)
					{ks=24-k;
					voltr[ks] = DATO * (vref / 4095);
					temp[ks]=voltr[ks]/10;
					printf (" %.1f", temp[ks]);                       //print to screen
					fprintf (f_one,"%.1f ", temp[ks]);}	       //print to file
 
					Sleep(25);
}																
}															
					Sleep(25);
					printf ("\n");
					fprintf (f_one,"\n");
	fclose(f_one);
}