# [Tuglist] Environment slide in pdfscreen.sty

David Kastrup tuglist@tug.org.in
12 Jun 2002 16:32:16 +0200

Manoj K N <knm@india.ti.com> writes:

> I knew what \makeatletter and \makeatother do, but was doing some
> experiments. My main concern was not LaTeX failing to understand the \def
> command, but why the first error I got was about c@\@captype being not
> defined. Reading latex.ltx, I felt that it should have been about the
> counter \@captype not being defined.

A counter xxx is stored in a control sequence of the name \c@xxx.  So