Re: beamer o article come riconoscerlo?

forse ho trovato la soluzione da solo
che ne pensate?
`
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage[italian]{babel}
\usepackage{textpos}
\usepackage{fix-cm}
\usepackage{tkz-euclide}
\usepackage{tkz-linknodes}
\frenchspacing
\usepackage{times}
\usepackage{microtype}
\usepackage{bbding}
\title{La vita segreta \\di \\ paperinik }
\author{Paolino Paperino}
\institute{Accademia di paperopoli}
\date{\today}
\usepackage{guit}
\usepackage{ccicons}
\usetheme{CambridgeUS}
\makeatletter
\@ifclassloaded{article}
{} %
{\addtobeamertemplate{frametitle}{}{%
\begin{textblock*}{450mm}(.85\textwidth,-3cm)
\begin{tikzpicture}[scale=0.3, label style/.style={font=\fontsize{128}{128}\selectfont}]
\tkzInit% [ymin=-0.1,ymax=2.3,xmin=-0.1,xmax=2.3]
\tkzClip
\tkzDefPoint(0,0){a}
\tkzDefPoint(2,0){b}
\tkzDefPoint(2,2){c}
\tkzDefPoint(0,2){d}
\tkzDefPointBy[rotation= center d angle 90](b)
\tkzGetPoint{e}
\tkzDefPointBy[rotation= center b angle 270](d)
\tkzGetPoint{f}
\tkzDrawSegments(a,b b,c c,d d,a d,e)
\tkzDrawSegments(b,f e,f d,b)
\tkzDefMidPoint(d,b) \tkzGetPoint{m}
%\tkzLabelPoint(m){\fontsize{120}{1}\selectfont C}
\tkzLabelPoint(m){\fontsize{22}{32}\selectfont C}
\tkzDefMidPoint(d,f) \tkzGetPoint{n}
\tkzLabelPoint[rotate=-45](n){\fontsize{28}{32}\selectfont D}
\end{tikzpicture}
\end{textblock*}}
}
\makeatother
\begin{document}
\begin{frame}[t]
\maketitle
\end{frame}
\begin{frame}{vita segreta di Paperinik}
\begin{alertblock}{Paperino}
Paperino
\end{alertblock}
\end{frame}
\end{document}
`
grazie
claudio