FileFilter combinations

[jody <jody xha gmail com>]

Hi
Is there a possibility to make a Gtk::FileFilter which captures two
different masks?

Example: i want to create a FileFilter for the FileChooserDialog so
that it shows all *.ico and *.ltc (and only those).

(A feeble workaround is "*[il][ct][oc]", but here i can get more than
i want, e.g. *.lto, *.icc  etc.)

I tried "*.ic *.ltc" but this doesn't work....

Thank You
  Jody