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;
using System.Threading;

namespace Codigo_Morse_LPT_01
{
    public partial class Form1 : Form
    {
        class ControlPort
        {
            [DllImport("inpout32.dll", EntryPoint = "Out32")]
            public static extern void Output(int adress, int value);
        }

public Form1()
        {
            InitializeComponent();
        }

string letras = "abcdefghijklmnñopqrstuvwxyz0123456789.,? ";
        string[] morse =  { 
        ".-","-...","-.-.","-..",".","..-.","--.","....","..","·---","-.-",".-..", 
        "--","-.","--.--","---",".__.","--.-",".-.","...","-","..-","...-",".--",
        "-..-","-.--","--..", "-----",".----","..---","...--","....-", 
        ".....","-....","--...","---..","----.", ".-.-.-","-.-.--","..--.."," " };
        int size;

private void button1_Click(object sender, EventArgs e)
        {
            string conversion = "";
            string palabra = textBox1.Text.ToLower();
            size = palabra.Length;
            for (int i = 0; i < size; i++ )
                conversion += morse[letras.IndexOf(palabra[i])];
            lblMorse.Text = conversion;
            salida(conversion);
        }

private void salida(string codigo)
        {
            size = codigo.Length;
            for (int i = 0; i < size; i++)
            {
                switch (codigo[i])
                {
                    case '.':
                        Console.Beep(1200, 250);
                        ControlPort.Output(0x378, 1);
                        Thread.Sleep(250);
                        break;
                    case '-':
                        Console.Beep(1200, 650);
                        ControlPort.Output(0x378, 1);
                        Thread.Sleep(650);
                        break;
                    default:
                        ControlPort.Output(0x378, 0);
                        Thread.Sleep(500);
                        break;
                }
                ControlPort.Output(0x378, 0);
                Thread.Sleep(100);
            }
        }

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

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