removed ud.handles.brush and ud.handles.eraser from scan windowing callback. Used ud.handles.flex instead.
removed ud.handles.brush and ud.handles.eraser from scan windowing callback. Used ud.handles.flex instead.

aditiiyer/CERR,cerr/CERR,aditiiyer/CERR,cerr/CERR,cerr/CERR,cerr/CERR,aditiiyer/CERR,aditiiyer/CERR,aditiiyer/CERR,aditiiyer/CERR,cerr/CERR,cerr/CERR,cerr/CERR,cerr/CERR,aditiiyer/CERR,cerr/CERR,aditiiyer/CERR