var x11 = require('../../lib'); var PointerMotion = x11.eventMask.PointerMotion; var xclient = x11.createClient(function(err, display) { var X = display.client; var root = display.screen[0].root; display.client.require('render', function(err, Render) { var wid = X.AllocID(); var white = display.screen[0].white_pixel; varblack = display.screen[0].black_pixel; X.CreateWindow(wid, root, 10, 10, 400, 300, 0, 0, 0, 0, { backgroundPixel: white, eventMask: PointerMotion }); X.MapWindow(wid); var pict = X.AllocID(); Render.CreatePicture(pict, wid, Render.rgb24); var pictGrad = X.AllocID(); Render.RadialGradient(pictGrad, [26,26], [26,26], 0, 26, [ [0, [0,0,0,0x0fff ] ], [0.3, [0,0,0,0x0fff ] ], [0.997, [0xffff, 0xf, 0, 0x1] ], [1, [0xffff, 0xffff, 0, 0x0] ] ]); function draw(x, y) { Render.Composite(3, pictGrad, 0, pict, 0, 0, 0, 0, x-26, y-26, 52, 52); } X.on('event', function(ev) { draw(ev.x, ev.y); }); }); });