[Inkscape-devel] Output selected items through .py extension

HI there

I want to know if there is the possibility to get the ids of the selected items in an extension that is an "output" extension. I'm developing an extension and I just need to get the ids. The extension is located in "File - Save As...", not in the "Extensions" menu. This is the problem?

I've tried somethings like:

self.selected.iteritems() self.selected

but just got empty lists and dicts.

Thanks for the attention.