An opaque structure used as the base of all interface types.
Sets our main struct and passes it to the parent class.
the main Gtk struct as a void*
Get the main Gtk struct
Returns the corresponding gobject.TypeInterface structure of the parent type of the instance type to which g_iface belongs. This is useful when deriving the implementation of an interface from the parent type and then possibly overriding some methods.
Adds prerequisite_type to the list of prerequisites of interface_type. This means that any type implementing interface_type must also implement prerequisite_type. Prerequisites can be thought of as an alternative to interface derivation (which GType doesn't support). An interface can have at most one instantiatable prerequisite type.
Returns the gobject.TypeInterface structure of an interface to which the passed in class conforms.
Returns the prerequisites of an interfaces type.
the main Gtk struct