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From: Patrick Gundlach <pg@levana.de>
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Subject: Re: Error using \starttextbackground. (LONG)
Date: Thu, 10 Apr 2003 23:19:31 +0200
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John Culleton <john@wexfordpress.com> writes:

> I feel we have rounded the bend and are galloping for finish line :-) 

:)

> I did as Giuseppe suggested, deleted the files from .../context,
> left the .../context/base directory intact. Now the error message
> goes away but the background does not appear. I also added the
> \setupcolors[state=start] as suggested for my \framedtext example.


Let us first try a simple background, then we go to columnsets:


% output=pdf
\mainlanguage[de]
\setupcolors[state=start]

\definetextbackground[wichtig]
        [backgroundcolor=lightgray,
         location=paragraph,
         frame=off,
         backgroundoffset=5pt,
         ]
\starttext
         
\starttextbackground[wichtig]
\input tufte         
\stoptextbackground
\stoptext


Or a somewhat more complicated one:

% output=pdf
\mainlanguage[de]
\setupcolors[state=start]
\definetextbackground[wichtig][]
\startuseMPgraphic{mpos:par:columnset}
   for i := 1 upto nofmultipars :
    linear_shade(multipars[i] enlarged 5pt cornered 20pt,1,
                  \MPcolor{middlegreen},\MPcolor{lightgreen}); 
   endfor ;
\stopuseMPgraphic
\starttext
\starttextbackground[wichtig]
\input tufte         
\stoptextbackground
\stoptext


Do they come out right?

> ### simple group (level 1) entered at line 23 ({)
> ### bottom level

[...]
> \stoptextbackground
\stopcolumnset

> \page[new]
> \stoptext


Patrick