From: Michael Fellinger <m.fellinger@...>
Date: 2006-09-11T18:53:27+09:00
Subject: Re: Non blocking keypress reading?

On Friday 08 September 2006 20:42, Sard Aukary wrote:
> On Windows XP is there a way to test that a certain key has been pressed
> without blocking?
>
> I’ve tried using curses but it blocks the current thread and any other
> thread until a key is pressed.
>
>
> I want to give the user 10 seconds so make a selection before a default
> action is taken.

require 'timeout'
begin
  Timeout.timeout(10) do
    key = gets
  end
rescue Timeout::Error
  key = default
end

>
> Here is the test code I’ve got;
>
>
> 	require 'curses'
> 	include Curses
> 	init_screen
> 	noecho
> 	trap(0) { echo }
>
> 	t1 = Time.new
> 	Thread.new do
>
> 		#example timer thread
> 		while(true) do
> 		x = Time.new - t1
> 		h = 3+3
> 		setpos(12,10)
>
> 	  addstr("#{x}")
>
> 	end
> 	end
>
> 	setpos(1,5)
> 	addstr("Please select your location")
> 	setpos(3,5)
> 	addstr("  1 - Work")
> 	setpos(4,5)
> 	addstr("  2 - Home")
> 	setpos(6,5)
> 	addstr("Esc - Exit")
> 	while (c = getch) != ?\e do
> 	 # check what key is pressed and do stuff
> 	end

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