var x11 = require('../../lib'); var Exposure = x11.eventMask.Exposure; x11.createClient(function(err, display) { var repaint; var X = display.client; var root = display.screen[0].root; var white = display.screen[0].white_pixel; var black = display.screen[0].black_pixel; var wid = X.AllocID(); X.CreateWindow( wid, root, 10, 10, 400, 300 ); X.MapWindow(wid); // parameters: colormap, red, green, blue X.AllocColor(display.screen[0].default_colormap, 0xffff, 0xffff, 0, function(err, color) { var gc = X.AllocID(); X.CreateGC(gc, wid, { foreground: color.pixel, background: black } ); repaint = setInterval(function() { X.PolyFillRectangle(wid, gc, [100, 100, 200, 100]); }, 1000); }); X.on('error', function(e) { console.log(e); }); X.on('end', function() { console.log('client destroyed'); clearInterval(repaint); }); });