wwbox
wwbox(boxwin, row - 1, col - 1, 3, 3);
wwbox(boxwin, row - 1, col - 1,
wwbox(boxwin, row - 1, col - 1, w->ww_w.nr + 2, w->ww_w.nc + 2);
wwbox(boxwin, w->ww_w.t - 1, w->ww_w.l - 1,
void wwbox(struct ww *, int, int, int, int);