Adds a function to be called after an interface vtable is
initialized for any class (i.e. after the interface_init member of
GInterfaceInfo has been called).
This function is useful when you want to check an invariant that
depends on the interfaces of a class. For instance, the
implementation of GObject uses this facility to check that an
object implements all of the properties that are defined on its
interfaces.
Since 2.4
Adds a function to be called after an interface vtable is initialized for any class (i.e. after the interface_init member of GInterfaceInfo has been called). This function is useful when you want to check an invariant that depends on the interfaces of a class. For instance, the implementation of GObject uses this facility to check that an object implements all of the properties that are defined on its interfaces. Since 2.4