Re: scroll-bar-toolkit-scroll

[Richard Stallman]

      The widget
    does the translation of user actions to scroll bar actions, depending
    on its capabilities and specified user translations (I mean the normal
    X way of customizing X widgets).  The scroll bar actions received by
    the callback function are converted to certain "widget events" that
    are handled in Lisp.

Does this include down-events?  If so, how does the generated Lispy event
indicate whether it is down or up?