Function
GObjecttype_next_base
since: 2.0
Description
Given a leaf_type and a root_type which is contained in its
ancestry, return the type that root_type is the immediate parent
of. In other words, this function determines the type that is
derived directly from root_type which is also a base class of
leaf_type. Given a root type and a leaf type, this function can
be used to determine the types and order in which the leaf type is
descended from the root type.
Available since: 2.0