Function update_tty

outdated/sys/mac/mactty.c:713–745

* Update the screen to match the current bitmap, after adding stuff * with add_tty_char etc. */

 * with add_tty_char etc.
 */
short
update_tty(WindowPtr window)
{
    Rect r;
    RECORD_EXISTS(record);

#if CLIP_RECT_ONLY
    if (record->invalid_rect.right <= record->invalid_rect.left
        || record->invalid_rect.bottom <= record->invalid_rect.top) {
        return noErr;
    }
    r = record->invalid_rect;
#else
    if (EmptyRgn(record->invalid_part)) {
        return noErr;
    }
    r = (*(record->invalid_part))->rgnBBox;
#endif
    select_onscreen_window(record);
    copy_bits(record, &r, srcCopy, (RgnHandle) 0);
#if CLIP_RECT_ONLY
    empty_rect(&(record->invalid_rect));
#else
    SetEmptyRgn(record->invalid_part);
#endif
    if (record->curs_state) {
        pos_rect(record, &r, record->x_curs, record->y_curs, record->x_curs,
                 record->y_curs);
        InvertRect(&r);
    }

    return noErr;
}

/*
 * Low level add to screen