Mercurial > pub > dyncall > bindings

view ruby/rbdc/examples/win32screenres.rb @ 54:918dab7a6606

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
- added callback support (comes with some bigger refactoring) - allow CPython's Py{CObject,Capsule} to be used as 'p'ointers
author Tassilo Philipp
date Tue, 02 Feb 2021 20:42:02 +0100
parents 5e159be89d73
children
line wrap: on
line source

#//////////////////////////////////////////////////////////////////////
#
#	win32screeninfo.rb
#	Copyright 2015 Tassilo Philipp
#
#	Dyncall sample loading user32.dll on windows and displaying a
#	native windows message box by calling MessageBoxA(...).
#
#///////////////////////////////////////////////////////////////////////

require 'rbdc'

l = Dyncall::ExtLib.new
if l.load('user32') != nil
  puts 'width:                ' + l.call(:GetSystemMetrics, 'i)i',  0).to_s
  puts 'height:               ' + l.call(:GetSystemMetrics, 'i)i',  1).to_s
  puts 'number of monitors:   ' + l.call(:GetSystemMetrics, 'i)i', 80).to_s
end