Fullscreen++ Alt+Enter Fix

#===============================================================================
# Chainsawkitten's Disable F1, Alt+Enter, F12 v1.1
#-------------------------------------------------------------------------------
# Modified by mjshi to support for alt enter fullscreening
#
# Requires Full Input Keyboard by Cidiomar R. Dias Junior:
# http://himeworks.com/2013/07/full-input-keyboard/
#
# Requires Fullscreen++:
# http://pastebin.com/raw.php?i=kc1hzBek
#
#------------------------------------------------------------------------------
# ** Make sure the Full Input Keyboard script is placed before this one! **
#     It doesn't matter how much before, it just has to be above this.
#==============================================================================

Win32API.new("System/F1AltEnterF12", "hook", "III", "").call(
  0, # Disable F1?       0 = no, 1 = yes
  0, # Disable F12?      0 = no, 1 = yes

  #-----------------------------------------------------------------------------
  # IMPORTANT! The value below *needs* to be 1 or your game will freeze when
  # you try to fullscreen.
  1  # Disable AltEnter? 0 = no, 1 = yes
)

module Input
  class << self
    unless self.method_defined?(:input_update)
      alias_method(:input_update, :update)
    end

    def update
      input_update

      #-------------------------------------------------------------------------
      # Launch Fullscreen++ if the alt key is held down and enter key is
      # triggered or vice versa
      Graphics.toggle_fullscreen if (Input.press?(:ALT) && Input.trigger?(:RETURN)) || (Input.trigger?(:ALT) && Input.press?(:RETURN))
    end
  end
end