win_new_width(win_T *wp, int width)
{
    wp->w_width = width;
    wp->w_lines_valid = 0;
    changed_line_abv_curs_win(wp);
    invalidate_botline_win(wp);
    if (wp == curwin)
    {
	update_topline();
	curs_columns(TRUE);	/* validate w_wrow */
    }
    redraw_win_later(wp, NOT_VALID);
    wp->w_redr_status = TRUE;
}
Unknown