%%
%% The LaTeX Companion, 2ed (second printing August 2004)
%%
%% Example A-2-21 on page 870.
%%
%% Copyright (C) 2004 Frank Mittelbach, Michel Goossens,
%%    Johannes Braams, David Carlisle, and Chris Rowley
%%
%% It may be distributed and/or modified under the conditions
%% of the LaTeX Project Public License, either version 1.3
%% of this license or (at your option) any later version.
%%
%% See http://www.latex-project.org/lppl.txt for details.
%%

\documentclass{ttctexa}
\pagestyle{empty}
\setcounter{page}{6}
\setlength\textwidth{159.0pt}
\StartShownPreambleCommands
\usepackage{calc}
\newsavebox{\fcolbox} \newlength{\fcolwidth}
\newenvironment{boxedminipage}[2][c]
  {\setlength{\fcolwidth}{#2-2\fboxsep-2\fboxrule}%
   \begin{lrbox}{\fcolbox}%
   \begin{minipage}[#1]{\fcolwidth}}
  {\end{minipage}\end{lrbox}\fbox{\usebox{\fcolbox}}}
\StopShownPreambleCommands
\begin{document}
  left \begin{boxedminipage}[b]{4cm}
         In this environment verbatim text like
          \verb=\fcolbox= can be used.
       \end{boxedminipage}
  right
\end{document}