var x11 = require('../../lib'); x11.createClient(function(err, display) { var X = display.client; var root = display.screen[0].root; X.require('randr', function(err, Randr) { //console.log(Randr); //Randr.QueryVersion(1, 4, console.log); Randr.SelectInput(root, Randr.NotifyMask.ScreenChange); X.on('event', function(ev) { console.log(ev); }); }); X.on('error', function(err) { console.log(err); }); });