UPDATE

UPDATE_CHILDREN	Private.
UPDATE_PARENTS	Private.
UPDATE_PREVIEW	Private.
UPDATE_REFRESH2D	Private.
UPDATE_RECALC	Private.
UPDATE_NOSAVECHG	Private.
UPDATE_NOOFFSET	Private.
UPDATE_REFRESH3D	Private.
UPDATE_REFRESHCURSOR	Private.
UPDATE_NOSTOPTHREADS	Private.
UPDATE_STD	Standard refresh.