Backgrounds off

Backgrounds off

[Michal Kvasnicka]

Hallo,

one more question: In my paper document I'm using \setupbackgrounds
to put some chapter-dependent material to the left margin. I do want to
change it every chapter (that's o.k.), but I do also want to turn it off
on
the chapter page. How can I do it?

By the way, how can I link some command (macro) to shipout? Can I
simply use something like this:
    \let\orishipout=\shipout
    \def\shipout{\dosomethin\orishipout}
or is \shipout redefined in the ConTeXt in a way that doesn't allow to
use this simple hook securely?

Many thanks for your answers
Michal Kvasnicka

--
Economics is the only field in which two people can get a Nobel Prize
for saying exactly the opposite things.

Re: Backgrounds off

[Hans Hagen]

At 11:36 AM 8/11/00 +0200, Michal Kvasnicka wrote:
>Hallo,
>
>one more question: In my paper document I'm using \setupbackgrounds
>to put some chapter-dependent material to the left margin. I do want to
>change it every chapter (that's o.k.), but I do also want to turn it off
>on
>the chapter page. How can I do it?
>
>By the way, how can I link some command (macro) to shipout? Can I
>simply use something like this:
>    \let\orishipout=\shipout
>    \def\shipout{\dosomethin\orishipout}
>or is \shipout redefined in the ConTeXt in a way that doesn't allow to
>use this simple hook securely?

Given that you know what you are doing [i.e. not introducing funny spaces
and so] 

\appendtoks \DoMyCommand \to \everyshipout

use capitals in your command to prevent clashes.

Context overloads some primitives, and the originals are always called
\normal...

Hans 
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