That OnUpdate tag in the XML that everyone seems to be using right now. How often is that firing? Every frame? According to the this snippet
(..."We're just going to make a simple window frame with some text on it that updates every frame."...) I would guess yes.
Code:
<OnUpdate>
DoStuff()
</OnUpdate>
Are there any arguments that allow throttling like elapsed?
Article from the wow wiki page regarding that kind of trigger:
http://www.wowwiki.com/Using_OnUpdate_correctly
http://wowpedia.org/Using_OnUpdate_correctly
Frame rate and the human eye
http://en.wikipedia.org/wiki/Frame_rate