\mode
<presentation>

\begin{frame}{An Example Article -- \TeX~code}
  \label{example:art:tex3}

  \begin{example}[more sections]
    \lstinputlisting[style=beamer-example,language=TeX,firstline=22,lastline=25]{\skbfileroot{examples/example}}
  \end{example}

  \begin{example}[finishing the tex file]
    \lstinputlisting[style=beamer-example,language=TeX,firstline=27]{\skbfileroot{examples/example}}
  \end{example}

\end{frame}


\mode
<article>

\resizebox{\textwidth}{!}{\includeslide{example:art:tex3}}
\bigskip

\mode
<all>