Extra code in the beginning of all frames

Question

I want to add at the beginning of all beamer frame environments some extra commands (for example, \vspace{-0.5cm}) and my trial with

\addtobeamertemplate{frame begin}{}{\vspace{-0.5cm}}

doesn't work at all.

Which line should I add to solve this problem?

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score 2 · Accepted Answer · answered Jun 19 '14 at 23:36

_{I do not know if this breaks some thing some where!}

\documentclass{beamer}
\usepackage{etoolbox}
\AtBeginEnvironment{frame}{\vspace*{-1in}}
\begin{document}
  \begin{frame}
    Some text
  \end{frame}
\end{document}

Extra code in the beginning of all frames

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