On Sat, Jan 31, 2009 at 12:34 AM, Kevin D. Robbins <
krobbins@alumni.princeton.edu> wrote:

> Hi all,
>
> I am looking for ideas of how to capture a typeset page (as it would appear
> in the resulting pdf output) into a box instead of actually shipping it out
> directly, if it is possible. I would like to take advantage of ConTeXt's
> layout features including layers, otherwise I would just create the box with
> \setbox.
>
It's not an answer, but I think that it's an OTR (output routine) +
mutlipass problem.
if you search for 'OTR' in base/*
you will find what you need.
Also lua offers a table serializazion which can be useful instead of
\showbox .


>
> My intent is to draw slides using all of ConTeXt's many layout features,
> but capture the rendered slide in a box so I can use it either as a full
> page in the presentation output or as a scaled image included as a figure in
> a full text "train the trainer" document.
>
Why  the final pdf is not OK ?
You can convert an arbitrary  page to a bitmap with ghostscript .
-- 
luigi