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From: Thomas A.Schmitz <thomas.schmitz@uni-bonn.de>
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Subject: page backgrounds
Date: Sat, 15 Nov 2003 22:36:04 +0100
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These are my first forays into the unknown territories of Metapost. The 
following code is copied verbatim from the matafun-manual:

\startuniqueMPgraphic{copyright}
picture p ; p := btex COPYRIGHT etex rotated 90 ;
setbounds p to boundingbox p enlarged 1pt ;
draw p withcolor .8white ;
currentpicture := currentpicture
xysized (\overlaywidth,\overlayheight) ;
\stopuniqueMPgraphic
\defineoverlay[copyright][\uniqueMPgraphic{copyright}]

\setupbackgrounds[text][rightmargin][background=copyright]

But I don't see anything. The log shows that metapost calculated a 
background, but I don't see anything. What am I doing wrong?

Best

Thomas