get information on the currently active mac window in ruby / applescript

trackmac.rb

require 'rubygems'
require 'bundler/setup'
require 'appscript'

# http://stackoverflow.com/questions/480866/get-the-title-of-the-current-active-window-document-in-mac-os-x
while true
  frontmost = Appscript.app('System Events').application_processes.get.select{ |a| a.frontmost.get }.first
  if frontmost
    puts frontmost.name.get
    if frontmost.windows.count > 0
      window = frontmost.windows.first
      puts window.name.get

      # Chrome Active Tab
      # http://stackoverflow.com/questions/2483033/get-the-url-of-the-frontmost-tab-from-chrome-on-os-x
      if frontmost.name.get == 'Google Chrome'
        tab = Appscript.app('Google Chrome').windows[0].active_tab
        puts tab.URL.get
        puts tab.name.get
      end
    end
  end
  sleep 0.25
end

# System Idle Time
# http://www.dssw.co.uk/sleepcentre/threads/system_idle_time_how_to_retrieve.html
# ioreg -c IOHIDSystem | perl -ane 'if (/Idle/) {$idle=(pop @F)/1000000000; print $idle,"\n"; last}'

Can you suggest something for Windows?