monitor extension for nautilus

[fabio duchi <fabio duchi gmail com>]

hi,
i  developing an extension for nautilus which change the state of an
icon (add an emblem); the event, for which my extension should change
the state of a file, could happens while the icon view was already
showed.
How i can take a trace of the files currently exposed by the iconview,
and how i can force an update of the file's FileInfo class(obviusly
the file which is the subject of the event) ?

thanks.