using System;
using System.IO;
using System.Drawing;
using System.Windows.Forms;
using System.Runtime.InteropServices;

public class PortAccessAPI
{
    /// <summary>
    /// This method will be used to send the data out to the parallel port.
    /// </summary>
    /// <param name="adress">Address of the port to which the data needs to be sent.</param>
    /// <param name="value">Data that need to send out.</param>

    [DllImport("inpout32.dll", EntryPoint="Out32")]
    public static extern void Output(int address, int value);

    /// <summary>
    /// This method will be used to receive any data from the parallel port.
    /// </summary>
    /// <param name="address">Address of the port from which the data should be received.</param>
    /// <returns>Returns Integer read from the given port.</returns>
    [DllImport("inpout32.dll", EntryPoint = "Inp32")]
    public static extern int Input(int address);
}


partial class MainForm : Form
{

	void Button1Click(object sender, EventArgs e)
	{

	int address = 888;
	int value = 24;
	PortAccessAPI.Output(address, value);
	value = PortAccessAPI.Input(address);
	label1.Text = Convert.ToString(value);

	}

	void MainFormLoad(object sender, EventArgs e)
	{



	}
}