From: Jano Svitok <jan.svitok@...>
Date: 2007-07-04T07:51:52+09:00
Subject: Re: Console Application Keyboard event catch

On 7/3/07, marble.zhong@oocl.com <marble.zhong@oocl.com> wrote:
>
>
> Thanks Jano,
>
> Could make a sample for it? Or give me the related API? Thanks.
> And, want to catch the event, not only catch the what user input after
> press [Enter], thanks.

Hi,

this is how you can obtain pressed keys on windows:

require 'Win32API'

module Windows
	module Keyboard
		Getch = Win32API.new('crtdll', '_getch', 'V', 'L')
		Kbhit = Win32API.new('crtdll', '_kbhit', 'V', 'L')

		def getch
			Getch.call
		end

		def kbhit
			Kbhit.call
		end	
	end
end

and this is how you can use readline library to prompt and provide completion:

require 'readline'
Readline.completion_proc = proc {|word| ['array', 'of', 'possible',
'completions']}
line = Readline.readline("prompt>", true) # true means history on

J.