#!ruby
# -*- mode: ruby; coding: utf-8 -*-
# Last updated: <2022/08/16 07:31:23 +0900>
#
# win32api sample. messagebox.
#
# * Windows10 x64 21H2 + Ruby 1.8.7 p330 i386-mswin32

require "Win32API"

msgbox = Win32API.new('user32', 'MessageBoxA', %w(p p p i), 'i')
msgbox.call(0, "Hello World.", "MessageBoxA", 0x40)