how to hide root items in a treeview withouth hide childs??

["Juan A. Moreno" <jamf gm gmail com>]

Hi list.
I need help!!

i'm trying to make a list with two modes, list and tree, using a treemodelfilter over a treestore. I'm setting a visible function with filter_tree->set_visible_fun, but in the function, when a root node is hidden, all child nodes become hidden also.
Is there any way to hide root rows withouth hide child rows??


Thanks,
Juan Ángel