Beamer Lecture: reference title of lecture in the course - TeX

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Beamer Lecture: reference title of lecture in the course

beamer add tag

Arne (imported from SE)

Example: 

    \documentclass{beamer}
    
    \begin{document}
    
    \lecture{lecture 1}{week 1}
    \begin{frame}
    \end{frame}
    
    \begin{frame}
    see Lecture \ref{week 1}
    \end{frame}
    
    \end{document}

This yields 

![Rvuae.png](/image?hash=3a0da33e9d5cdf385c6fac65a101bb358be95b1f669a78e74bb039ee4d9bbca8)

yet it would be nice to have something like "see Lecture 'lecture 1'", so printing the title of the lecture with label "week 1".

Any ideas how to implement this? Ideally, this should be compatible with cross-referencing and `\includeonlylecture` as explained at [TeXSE](https://tex.stackexchange.com/questions/210287/reference-to-equation-from-other-lecture-in-class-beamer)

**Icing on the cake** would be the following: having a macro `\lectureref{label}`, where label is a `\label{}-label` on a frame within the scope of a `\lecture{}-lecture`.

  [1]: https://i.stack.imgur.com/Rvuae.png

Top Answer

samcarter

One can add the ability to `\nameref` a beamer lecture with this little trick:

```
\documentclass{beamer}

\makeatletter
\AtBeginLecture{
  \phantomsection
  \protected@edef\@currentlabelname{\beamer@lecturename}
  \label{\beamer@currentlecturelabel}
}
\makeatother

\begin{document}

\lecture{lecture 1}{weeka}

\begin{frame}
see Lecture \nameref{weeka}
\end{frame}

\end{document}
```

1 Answer