Mikael Sundqvist schrieb am 30.06.2020 um 22:03:
Hi,
say that I, for educational purposes, want to use \showframe for a
couple of pages, and then want to hide the frames. What is the correct
way of doing this? I have for now added a \begingroup and \endgroup, but
then another document parameter that is set inside is cancelled after
the \endgroup.
I tried to look in the source, but could not find anything that worked
(what I tried with was to use \setupbackgrounds[state=stop], but that
was merely a guess, and it did not work).
There is no command to disable \showframe but you don't even need the
command to have frames. What \showframe does is to set a few values for
the \setupbackgrounds command which can be done by hand.
To make everything a bit nice I put the backgrounds setup in a
setup-block and call only these blocks in the document.
%%%% begin example
\startsetups[showframe]
\setupbackgrounds [header,text,footer] [leftmargin,text,rightmargin]
[frame=on]
\stopsetups
\startsetups[hideframe]
\setupbackgrounds [header,text,footer] [leftmargin,text,rightmargin]
[frame=off]
\stopsetups
\starttext
\input knuth
\page \setup[showframe]
\input knuth
\page \setup[hideframe]
\input knuth
\stoptext
%%%% end example
Wolfgang
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