[development] Hook_elements?

Wed Jan 23 16:03:24 UTC 2008

Hi! Is there any good documentation about how to implement your own  
elements through hook_elements()? I must confess that the example  
file provided on api.drupal.org doesn't seem entirely clear to me --  
why do I want or not want '#input' to be true, when does '#process'  
get called (I tried to create my own element, but '#process' never  
got called), do I have to register the theme function via hook_theme 
(), what internal keys to the formapi should I be messing with, what  
are the standards for themeable elements -- is there any place I can  
go to find out these kinds of things?


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