How do I define a beamer overlay specification like `beamer:0` as `beamerframe key`? Something like:
```
\documentclass{beamer}
\makeatletter
\define@key{beamerframe}{hide}[true]{%
%<--- definition of the beamer:0 switch??
}
\makeatother
\begin{document}
\begin{frame}[hide] %<-- has now overlay specification beamer:0
example text
\end{frame}
\end{document}
```
Thx in advance!
TopAnswers
TeX
Top Answer
samcarter
That's an interesting problem! You could patch the frame environment like this to force the `beamer:0` option for the hidden frame.
Caveat: this will throw away any other mode specifications you might pass to the hidden frames.
```
\documentclass{beamer}
\usepackage{xpatch}
\makeatletter
\newif\ifbeamer@hide
\define@key{beamerframe}{hide}[true]{\beamer@hidetrue}
\BeforeBeginEnvironment{frame}{\beamer@hidefalse}
\xpatchcmd{\beamer@@@@frame}{%
\gdef\beamer@whichframes{#1}%
}{
\ifbeamer@hide
\gdef\beamer@whichframes{beamer:0}%
\else
\gdef\beamer@whichframes{#1}%
\fi
}{}{}
\makeatother
\begin{document}
\begin{frame}
content...
\end{frame}
\begin{frame}[hide] %<-- has now overlay specification beamer:0
example text
\end{frame}
\begin{frame}
content...s
\end{frame}
\end{document}
```