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href="http://wwwx.cs.unc.edu/~gb/wp/blog/2007/11/18/camkeys-is-a-simple-camera-based-alternative-keyboard/">CamKeys</A> 
project. Like CamKeys, atool allows keyboard input based on a cheap webcam. 
Atool adds DDR pads (or other game controller buttons) as an additional input 
and it allows playing recorded sounds on input events.<BR><A class=more-link 
href="http://wwwx.cs.unc.edu/~gb/wp/blog/2008/06/12/atool-enables-ddr-pad-or-webcam-input/#more-386">Continue 
reading →</A></P></DIV>
<P class=post_meta><SPAN class=add_comment><A 
title="Comment on atool enables DDR pad or webcam input" 
href="http://wwwx.cs.unc.edu/~gb/wp/blog/2008/06/12/atool-enables-ddr-pad-or-webcam-input/#comments">1 
Comment</A></SPAN></P>
<H2><A 
title="Combining WordPress and Flickr to make accessible books for beginning readers" 
href="http://wwwx.cs.unc.edu/~gb/wp/blog/2008/06/03/combining-wordpress-and-flickr-to-make-accessible-books-for-beginning-readers/" 
rel=bookmark>Combining WordPress and Flickr to make accessible books for 
beginning readers</A></H2>
<P class=post_date>June 3rd, 2008 — <A 
title="View all posts in Enabling Technology" 
href="http://wwwx.cs.unc.edu/~gb/wp/blog/category/et/" 
rel="category tag">Enabling Technology</A>, <A 
title="View all posts in Motor impaired" 
href="http://wwwx.cs.unc.edu/~gb/wp/blog/category/et/motor-impaired/" 
rel="category tag">Motor impaired</A>, <A title="View all posts in Programming" 
href="http://wwwx.cs.unc.edu/~gb/wp/blog/category/programming/" 
rel="category tag">Programming</A></P>
<DIV class=entry>
<P><A href="http://tarheelreader.org/">Tar Heel Reader</A> is a web site 
designed to help teachers make easy-to-read books for children with 
disabilities. It has a growing selection of books to read and a simple process 
for creating new books using pictures found on <A 
href="http://www.flickr.com/">Flickr</A>.<BR><A class=more-link 
href="http://wwwx.cs.unc.edu/~gb/wp/blog/2008/06/03/combining-wordpress-and-flickr-to-make-accessible-books-for-beginning-readers/#more-377">Continue 
reading →</A></P></DIV>
<P class=post_meta><SPAN class=add_comment><A 
title="Comment on Combining WordPress and Flickr to make accessible books for beginning readers" 
href="http://wwwx.cs.unc.edu/~gb/wp/blog/2008/06/03/combining-wordpress-and-flickr-to-make-accessible-books-for-beginning-readers/#comments">1 
Comment</A></SPAN></P>
<H2><A title="Creating PowerPoint Slide Shows from Wordpress Posts" 
href="http://wwwx.cs.unc.edu/~gb/wp/blog/2008/05/29/creating-powerpoint-slide-shows-from-wordpress-posts/" 
rel=bookmark>Creating PowerPoint Slide Shows from Wordpress Posts</A></H2>
<P class=post_date>May 29th, 2008 — <A title="View all posts in Programming" 
href="http://wwwx.cs.unc.edu/~gb/wp/blog/category/programming/" 
rel="category tag">Programming</A>, <A title="View all posts in Ubuntu" 
href="http://wwwx.cs.unc.edu/~gb/wp/blog/category/ubuntu/" 
rel="category tag">Ubuntu</A></P>
<DIV class=entry>
<P>For the Tar Heel Reader project I needed to convert very simple multi-page 
WordPress posts into PowerPoint slide shows. I chose the circuitous route of 
making an OpenOffice Impress show by bashing XML and then converting it to 
PowerPoint. I manually created a prototype slide show with a title page and a 
single book page in Impress and saved it in their native <CODE>.odp</CODE> 
format. These files are simply zip archives containing <A 
href="http://books.evc-cit.info/odbook/ch02.html">several XML documents</A> and 
the images. Why they didn’t include the sounds, I don’t understand. The 
important file is <CODE>content.xml</CODE>. Examining it in Firefox revealed the 
bits I’d have to change on the title page and for each page of the book. I found 
several useful hints in a <A 
href="http://www.linuxjournal.com/article/9319">Linux Journal article by Collin 
Park</A>. I used the <A href="http://us3.php.net/manual/en/book.dom.php">PHP DOM 
module</A> to read in the prototype, update it for the current book (retrieved 
with the WordPress <CODE>get_post</CODE> function), and write it out along with 
the images. Zipping this result up produces a new Impress presentation for the 
book. </P>
<P>Then I needed to convert the Impress format to PowerPoint. Thankfully, I 
found <A 
href="http://www.artofsolving.com/opensource/PyODConverter">PyODConverter</A> to 
automate that part of the job. It worked fine when I ran it from the command 
prompt but I could not get it to find the server when I ran it from PHP. Again 
the web came to my rescue with a <A 
href="http://forums.knowledgetree.com/viewtopic.php?p=12596">post</A> by Piero. 
I’ll reproduce the code here so I don’t forget it.</P><PRE>cd /var/www                                      #www-data user home
sudo mkdir .openoffice.org2                      #create the openoffice working dir
sudo chown -R www-data:www-data .openoffice.org2 #set the owner
sudo chmod 700 .openoffice.org2                  #change permissions
sudo -s                                          #you need to be root
su - www-data                                    #if you want to be www-data

#start openoffice headless
xvfb-run -a soffice -accept="socket,host=localhost,port=8100;urp;StarOffice.ServiceManager" -nologo -headless -invisible
</PRE>
<P>Now I need to figure out how to get this into /etc/init.d so that it will 
automatically start on reboot.</P></DIV>
<P class=post_meta><SPAN class=add_comment><A 
title="Comment on Creating PowerPoint Slide Shows from Wordpress Posts" 
href="http://wwwx.cs.unc.edu/~gb/wp/blog/2008/05/29/creating-powerpoint-slide-shows-from-wordpress-posts/#comments">4 
Comments</A></SPAN></P>
<H2><A title="Wordpress makes a fine application framework" 
href="http://wwwx.cs.unc.edu/~gb/wp/blog/2008/05/21/wordpress-makes-a-fine-application-framework/" 
rel=bookmark>Wordpress makes a fine application framework</A></H2>
<P class=post_date>May 21st, 2008 — <A 
title="View all posts in Enabling Technology" 
href="http://wwwx.cs.unc.edu/~gb/wp/blog/category/et/" 
rel="category tag">Enabling Technology</A>, <A 
title="View all posts in Programming" 
href="http://wwwx.cs.unc.edu/~gb/wp/blog/category/programming/" 
rel="category tag">Programming</A></P>
<DIV class=entry>
<P>I really like using <A href="http://wordpress.org/">Wordpress</A> for my 
website and blog but I hadn’t thought until recently about using it as an 
application framework. <A 
href="http://wwwx.cs.unc.edu/~gb/wp/blog/2008/05/14/karen_notes/">Karen and I 
talked</A> about a site to enable teachers to quickly build topical beginning 
readers for people with varied interests and abilities. I began thinking about 
the features such a site would have and found lots of overlap with what 
Wordpress already provides. A <A 
href="http://www.nixonmcinnes.co.uk/2008/04/25/building-micro-web-applications-using-wordpress-pages/">blog 
post</A> by <A href="http://www.nixonmcinnes.co.uk/people/steve/">Steve 
Winton</A> over at <A href="http://www.nixonmcinnes.co.uk/">NixonMcInnes</A> 
encouraged me to examine the possibilities further. </P>
<P>I’m pleased to report that it is really easy to integrate a PHP web-app into 
Wordpress. I use ordinary blog posts as the books with the &lt;!–nextpage–&gt; 
tag for pagination and a bit of Javascript for switch accessibility and text to 
speech. The book creator wizard is simply a set of pages with custom templates. 
You select some images, provide some captions and a title, and it creates the 
blog post that is your book. Wordpress provides logins, all the database 
manipulation, comments, tags, categories, etc. Redirects work fine because 
Wordpress is silent until you invoke get_header. Query parameters work fine; 
Wordpress seems to ignore them. Session variables work fine too. So far 
Wordpress hasn’t gotten in my way once and has helped a ton.</P></DIV>
<P class=post_meta><SPAN class=add_comment><A 
title="Comment on Wordpress makes a fine application framework" 
href="http://wwwx.cs.unc.edu/~gb/wp/blog/2008/05/21/wordpress-makes-a-fine-application-framework/#respond">No 
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