> This function is slow. Only use it for debugging and/or testing > purposes.
Checks if the given iter is a valid iter for this gtk.TreeModelSort
A gtk.TreeIter
TRUE if the iter is valid, FALSE if the iter is invalid.
2.2
> This function is slow. Only use it for debugging and/or testing > purposes.
Checks if the given iter is a valid iter for this gtk.TreeModelSort