[development] Custom FAPI elements in 6.x

Moshe Weitzman weitzman at tejasa.com
Thu Aug 23 15:30:27 UTC 2007

wow - this is exceptionally clear documentation. worthy of matt and
JVD's book i think. thanks karen.

the only improvement i can think of is more introductory info about
when one might want to use hook_elements(). something like:
"Use hook_elements() to create a new field type or a new property of
forms that all forms can then use. the best example of this hook in
core is system_elements(), which defines all of the core form fields
like textfield, checkbox, etc.)."

i think karoly was referring to the 4 instances of #after_build in core.

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