Re: A special request, with code.

Re: A special request, with code.

[Hans Hagen]

At 06:17 PM 8/4/2002 -0500, Coydell Rivers wrote:
>Hi
>
>This code was extracted from pdftex manual tex file written in ConTeXt. In 
>the earlier versions this worked.
>
>\defineoverlay
>   [joke]
>   [\hbox to \paperwidth
>      {\TitleFont\setstrut
>       \dimen0=\overlaywidth
>       \advance\dimen0 by -\ht\strutbox
>       \advance\dimen0 by -\dp\strutbox
>       \advance\dimen0 by -1cm
>       \dimen2=\overlayheight
>       \advance\dimen2 by -1cm
> 
>\hskip.5cm\externalfigure[pdftex-z][type=pdf,width=\dimen0,height=\dimen2]%
>       \hfill}]
>currently this code provides NO picture. Everything else works.

scratch dimensions are used all over the place, so it's dangerous to use 
them to pass values in this way, instead use:

\expanded{\externalfigure[pdftex-z][type=pdf,width=\the\dimen0,height=\the\dimen2]}

is one way,

\edef\MyWidth {\the\dimen0}%
\edef\MyHeight{\the\dimen2}%
\externalfigure[pdftex-z][type=pdf,width=\MyWidth,height=\MyHeight]

is another one. So, either expand, or use intermediate macros.

(no reason to set the type=pdf here)

Hans

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