Programacion

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;

namespace Control_de_salidas_LPT_01
{
    public partial class Form1 : Form
    {
        class ControlPort
        {
            [DllImport("inpout32.dll", EntryPoint = "Out32")]
            public static extern void Output(int adress, int value);

[DllImport("inpout32.dll", EntryPoint = "Inp32")]
            public static extern char Input(int adress);
        }

byte valor = 0;

public Form1()
        {
            InitializeComponent();
        }

private void Form1_Load(object sender, EventArgs e)
        {
            ControlPort.Output(0x378, valor);
        }

private void button1_Click(object sender, EventArgs e)
        {
            if (button1.BackColor == Color.SkyBlue)
            {
                valor += 1;
                button1.BackColor = Color.LightSalmon;
            }
            else {
                valor -= 1;
                button1.BackColor = Color.SkyBlue;
            }
            ControlPort.Output(0x378, valor);
        }

private void button2_Click(object sender, EventArgs e)
        {
            if (button2.BackColor == Color.SkyBlue)
            {
                valor += 2;
                button2.BackColor = Color.LightSalmon;
            }
            else
            {
                valor -= 2;
                button2.BackColor = Color.SkyBlue;
            }
            ControlPort.Output(0x378, valor);
        }

private void button3_Click(object sender, EventArgs e)
        {
            if (button3.BackColor == Color.SkyBlue)
            {
                valor += 4;
                button3.BackColor = Color.LightSalmon;
            }
            else
            {
                valor -= 4;
                button3.BackColor = Color.SkyBlue;
            }
            ControlPort.Output(0x378, valor);
        }

private void button4_Click(object sender, EventArgs e)
        {
            if (button4.BackColor == Color.SkyBlue)
            {
                valor += 8;
                button4.BackColor = Color.LightSalmon;
            }
            else
            {
                valor -= 8;
                button4.BackColor = Color.SkyBlue;
            }
            ControlPort.Output(0x378, valor);
        }

private void button5_Click(object sender, EventArgs e)
        {
            if (button5.BackColor == Color.SkyBlue)
            {
                valor += 16;
                button5.BackColor = Color.LightSalmon;
            }
            else
            {
                valor -= 16;
                button5.BackColor = Color.SkyBlue;
            }
            ControlPort.Output(0x378, valor);
        }

private void button6_Click(object sender, EventArgs e)
        {
            if (button6.BackColor == Color.SkyBlue)
            {
                valor += 32;
                button6.BackColor = Color.LightSalmon;
            }
            else
            {
                valor -= 32;
                button6.BackColor = Color.SkyBlue;
            }
            ControlPort.Output(0x378, valor);
        }

private void button7_Click(object sender, EventArgs e)
        {
            if (button7.BackColor == Color.SkyBlue)
            {
                valor += 64;
                button7.BackColor = Color.LightSalmon;
            }
            else
            {
                valor -= 64;
                button7.BackColor = Color.SkyBlue;
            }
            ControlPort.Output(0x378, valor);
        }

private void button8_Click(object sender, EventArgs e)
        {
            if (button8.BackColor == Color.SkyBlue)
            {
                valor += 128;
                button8.BackColor = Color.LightSalmon;
            }
            else
            {
                valor -= 128;
                button8.BackColor = Color.SkyBlue;
            }
            ControlPort.Output(0x378, valor);
        }
       
    }
}

Descargar archivo