import rapid/gfx var window = initRWindow() .size(320, 240) .title("Rosetta Code - draw a pixel") .open() surface = window.openGfx() surface.loop: draw ctx, step: ctx.clear(gray(0)) ctx.begin() ctx.point((100.0, 100.0, rgb(255, 0, 0))) ctx.draw(prPoints) discard step # Prevent unused variable warnings update step: discard step