Signal for unselected in a treeview widget

["Paulo Flabiano Smorigo" <pfsmorigo gmail com>]

Hi everyone,

I have a treeview with the set_hover_selection(true).
So when you put the mouse over a row, it's selected.
But I want to create a signal when the user unselect the row. Like a mouse_out, I don't know...

Thanks in advance...
Paulo Flabiano Smorigo