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Is it possible to use \visible without the beamer.cls? Or the other way around: I would like to try to build my own presentation class (very simple, it might be a kind of LaTeX exercise) but I have no clue how to incorporate something like \visible, \only, \pause and so on.

NB: I know ppower4 but I do not want to use postprocessing.

Stefan Kottwitz
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Jürgen
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    All those commands are defined in beamer not in latex, in principle of course beamer is open source and you could find the code and try to extract it but the overlay mechanism permeates the whole code, it would be a massive job. it would probably be as easy to write from scratch as to extract from the beamer codebase. – David Carlisle Nov 30 '15 at 20:29
  • I was afraid that something like this would be the answer. Do you can tell me a starting point as I do not have the faintest clue how to do this? – Jürgen Nov 30 '15 at 20:33
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    beamer is intricate, to say the least. Commands like \visible-and-friends work on the principle that the entire frame content is read, then reset a number of times, depending on how many slides should be produced from a single frame. – Werner Nov 30 '15 at 21:19
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    @Werner: intricate is understatement ;-) –  Nov 30 '15 at 21:33

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