XG_SB_RANGE      4962 src/gtkutil.c        size = clip_to_bounds (1, shown * XG_SB_RANGE, XG_SB_RANGE);
XG_SB_RANGE      4963 src/gtkutil.c        value = clip_to_bounds (XG_SB_MIN, top * XG_SB_RANGE, XG_SB_MAX - size);