Hi, Glyn.

I've been playing around with org-beamer for a little while and have gotten
something like what you seem to want to work.  I've revised your example in
the way that I've been doing it.

* The furniture.
:B_frame
  :PROPERTIES:
  :BEAMER_env: block
  :BEAMER_envargs: [<+->]
  :END:
Some old some new

** The Queen's old armchair
:B_block:
  :PROPERTIES:
  :BEAMER_env: block
  :BEAMER_envargs: <1->
  :END:
- Princess Anne
- Prince Charles
- corgis

------
Mark

On Thu, Aug 26, 2010 at 2:19 AM, Glyn Millington
<wistanswick@linuxmail.org>wrote:

>
> Good Morning :-)
>
> I'm having trouble getting beamer overlays to work properly when
> producing slides via org-mode. This may well be due to my not
> understanding the documentation!!
>
>
> I can only get this to work by dropping down into LaTeX - which on this
> scale is pretty painless - but feel sure there must be a way to do this
> org too.  Can anyone show me how?
>
> Below are the headers for my beamer-slide template and a frame with
> overlays which works.
>
> If it helps, this is Emacs-23.2.1 and org-mode 7.01h
>
> With thanks
>
>
> Glyn
>
>
>
> 8<------8<------8<------8<------8<------8<------8<------8<------8<------
>
> #+TITLE:     Beamer slide template
> #+AUTHOR:    GM
> #+EMAIL:     glyn@xyzxyz.orgle
> #+DATE:      2010-08-24
> #+DESCRIPTION:
> #+KEYWORDS:
> #+LANGUAGE:  en
> #+OPTIONS:   H:3 num:t toc:nil \n:nil @:t ::t |:t ^:t -:t f:t *:t <:t
> #+OPTIONS:   TeX:t LaTeX:t skip:nil d:nil todo:t pri:nil tags:not-in-toc
> #+INFOJS_OPT: view:nil toc:nil ltoc:t mouse:underline buttons:0 path:
> http://orgmode.org/org-info.js
> #+EXPORT_SELECT_TAGS: export
> #+EXPORT_EXCLUDE_TAGS: noexport
> #+LINK_UP:
> #+LINK_HOME:
>
> #+startup: beamer
> #+LaTeX_CLASS: beamer
> #+LaTeX_CLASS_OPTIONS: [bigger]
> #+latex_header: \mode<beamer>{\usetheme{Madrid} \usecolortheme{crane}}
> #+BEAMER_FRAME_LEVEL: 1
> #+BEAMER_HEADER_EXTRA \beamerdefaultoverlayspecification{<+->}
>
> #+COLUMNS: %40ITEM %10BEAMER_env(Env) %9BEAMER_envargs(Env Args)
> %4BEAMER_col(Col) %10BEAMER_extra(Extra)
>
>
>
> * The furniture.
> Some old some new
>
> ** The Queen's old armchair
> :B_block:
>   :PROPERTIES:
>   :BEAMER_env: block
>   :BEAMER_envargs: [<+->]
>   :END:
> # Notice we have to slip into raw LaTeX to make this work
> #+begin_LATEX
> \begin{itemize}[<+->]
> \item Princess Anne
> \item Prince Charles
> \item corgis
> \end{itemize}
> #+end_LATEX
>
>
>
>
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