Chatpad Working

#ifndef ARDUINO
#include "stdafx.h"
#include <conio.h>
#endif

#include "Chatpad.h"
Chatpad pad;

#include <LiquidCrystal.h>

LiquidCrystal lcd(7, 6, 2, 3, 4, 5);

void loop()
{
  pad.poll();
}

void print_keys(Chatpad &pad, Chatpad::keycode_t code,
    Chatpad::eventtype_t type) {
  if (type == Chatpad::Down) {
    char a = pad.toAscii(code);
    if (a != 0)
   {
    lcd.print(a);
   }
  }
}

void setup()
{
  // set up the LCD's number of columns and rows:
  lcd.begin(20, 4);
  pad.init(Serial, print_keys);
}