[Qgis-developer] How to get data of selected feautures from Postgres

[Luca Mandolesi]

Hi to alls!!
I've realized a simple plugin to display data from postgres DB and draw maps
from postgis layers. Here a little movie of my
plugin<http://pyarchinit.altervista.org/index.php?option=com_content&view=category&id=34&Itemid=57>
.
Now I want display on my GUI only the data selected on canvas.
I've tried some functions of QqisVectorLayer but I don't understand how to
realize my goal.

Somes suggestions?? What classes or examples I must to study?

Thank you very much!!

mando
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