autosync(win, syncmode)
{
        if (argc < 2)
        {
                /* sync X & Y */
                syncmode = 3;

                if (argc < 1)
                {
                        win = refwindow(w0);
                }
        }

        /* defer plotting */
        plotmode(win, 0);

        /* original focus */
        f = getfocus(win);

        focus(win, 1);

        /* default scaling */
        autoscale(win);

        /* get root focus autoscaling and set to focus */
        xl = getxl(win);
        xr = getxr(win);

        yb = getyb(win);
        yt = getyt(win);

        /* set autoscaling for secondary focus */
        focus(win, 2);

        setxauto(win, xl, xr);
        setyauto(win, yb, yt);

        /* set current window scaling */
        setx(win, xl, xr);
        sety(win, yb, yt);

        /* set sync */
        focus(win, 1);
        sync(win, syncmode);

        /* natural scaling */
        autoscale(win);

        /* reset focus */
        focus(win, f);

        /* show it */
        plotmode(win, 1);
}