I would like to create an add-in for use in Interdev.
I found a good article at 
http://www.elementkjournals.com/asp/0102/asp0121.htm
their tutorial is for developing an add-in that can hide all the windows, 
except the code window.

I have played around with this code, so I can understand it.
What I want to do is manipulate the text in the code window.
Modifying the code from the tutorial, I can cycle thru all the open 
windows, but I don't know how to access the elements in the code window.
I have searched on the web for other examples, but most of them seem as if 
they are for creating vb add-ins only, using VBIDE.Application
instead of DTE.DTE.

can anyone point me to a good site, post some examples or recommend a good 
book?
It would be greatly appreciated.