Function clear_tty_window

outdated/sys/mac/mactty.c:1099–1118

* Clear an area */

 * Clear an area
 */
short
clear_tty_window(WindowPtr window, short from_x, short from_y, short to_x,
                 short to_y)
{
    Rect r;
    RECORD_EXISTS(record);

    if (from_x > to_x || from_y > to_y) {
        return general_failure;
    }
    pos_rect(record, &r, from_x, from_y, to_x, to_y);
    select_offscreen_port(record);
    erase_rect(record, &r);
    accumulate_rect(record, &r);
    if (DRAW_DIRECT) {
        update_tty(window);
    } else
        select_onscreen_window(record);
    return noErr;
}

#if EXTENDED_SUPPORT
/*