app.rb

#!/usr/bin/env ruby

require_relative 'environment'

begin
  window = Ncurses.initscr
  Ncurses.raw
  Ncurses.keypad(Ncurses.stdscr, true)

  #Ncurses.mvaddstr(4, 19, "Hello, world!");
  Ncurses.printw("Enter your name > ")
  while (Ncurses.getstr(str = "")) != 'q' 
    Ncurses.printw("#{str.reverse}\n")
    Ncurses.printw("Rows and columns are: ")
    rows, cols = Ncurses.getmaxyx
    Ncurses.printw("%d, %d\n\n", rows, cols)
    Ncurses.refresh
  end 

ensure
  Ncurses.endwin
end

real_ruby_curses.rb

require 'ncurses'

module RealRubyNcurses
  def getmaxyx(screen = stdscr)
    row = col = []
    super(screen, row, col)
    row + col
  end
end

class << Ncurses
  prepend RealRubyNcurses
end