Is there a way in beamer to have some kind of dynamic picture that will change if the mouse is moved over it or if the button is clicked?
Here is a straightforward solution using a Widget Annotation (Push Button) according to the PDF specification. It displays different pictures depending on the current mouse position and its button state (out, roll-over, button-down).
\documentclass{article}
\usepackage{mwe}
\newsavebox\imga
\newsavebox\imgb
\newsavebox\imgc
\sbox\imga{\includegraphics{example-image-a}}
\sbox\imgb{\includegraphics{example-image-b}}
\sbox\imgc{\includegraphics{example-image-c}}
\edef\imgwd{\the\wd\imga}
\edef\imght{\the\ht\imga}
\immediate\pdfxform\imga
\edef\normalappearance{\the\pdflastxform\space 0 R}
\immediate\pdfxform\imgb
\edef\overappearance{\the\pdflastxform\space 0 R}
\immediate\pdfxform\imgc
\edef\downappearance{\the\pdflastxform\space 0 R}
\begin{document}
\hbox to \imgwd{\vbox to \imght{\vss%
\pdfannot width \imgwd height \imght depth 0pt {
/Subtype/Widget
/F 4
/FT/Btn/Ff 65536
/T (my dynamic image) % Widget name; must be unique
/H/P
/AP <<
/N \normalappearance
/R \overappearance
/D \downappearance
>>
}%
}\hss}
\end{document}
In case of multiple Widget annotations, the Widget's names, as specified by the /T (...) entry, must be uniqe.
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@AlexG I'm in trouble with your code: it works nicely only for the first occurrence of a picture, not for the following ones... I've tried to replace the \Widget subtype by a \Link, but it does not work – Lionel MANSUY Jan 8 '13 at 16:53
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@LionelMANSUY : The PDF created from the code example works properly only in Adobe Reader (as demonstrated by the animated screen recording). – AlexG Jan 9 '13 at 7:19
\inlcudegraphics<1>{...}what should be on overlay <1> and so on. – user2478 Nov 8 '12 at 8:10animatepackage? – AlexG Nov 8 '12 at 9:03