Increments the reference count for the interface type g_type,
and returns the default interface vtable for the type.
If the type is not currently in use, then the default vtable
for the type will be created and initialized by calling
the base interface init and default vtable init functions for
the type (the base_init and class_init members of GObject.TypeInfo).
Calling g_type_default_interface_ref() is useful when you
want to make sure that signals and properties for an interface
have been installed.
Increments the reference count for the interface type
g_type, and returns the default interface vtable for the type.If the type is not currently in use, then the default vtable for the type will be created and initialized by calling the base interface init and default vtable init functions for the type (the
base_initandclass_initmembers of GObject.TypeInfo). Callingg_type_default_interface_ref()is useful when you want to make sure that signals and properties for an interface have been installed.