[Evolution-hackers] Postal (ZIP) codes in addresbook: Do hooks exist?

[Petr Tomasek <tomasek etf cuni cz>]

Hello!

I was thinking about adding a plugin into evolution, that would
help adding postal codes to the address (if one knows the town -
or vice versa).

(In the Czech republic you can download the postal codes
frot the website of the Czech post:
http://www.cpost.cz/jetspeed/portal/media-type/html/language/en/country/null/user/anon/page/default.psml/js_pane/P-1015d17310f-10a07;jsessionid=d8f5440bAAF9QTg7P8wJiI3HWS=VTQ
)

So my question is: are there any hooks for EPlugins in the
contact edit dialog, more precisely it would be nice,
if one could add a button after (any of) the input fields;
and of course there should be a way for the plugin to
read/modify input fields...

If such hooks exist, are they documented somewhere?

Thanks a lot!

P.T.

-- 
Petr Tomasek <http://www.etf.cuni.cz/~tomasek>