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Re: scroll-bar-toolkit-scroll

From: Gerd Moellmann
Subject: Re: scroll-bar-toolkit-scroll
Date: 30 Jul 2002 11:12:12 +0200
User-agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.2

Richard Stallman <address@hidden> writes:

>       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?

IIRC, the scroll bar callback is invoked with action information only,
See, for instance, the LessTif/Motif callback xm_scroll_callback in
xterm.c.  AFAIK, the callback cannot tell which user actions caused
the action, i.e. up/down events etc.

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