Description [src]

struct GTypeInterface {
  /* No available fields */

An opaque structure used as the base of all interface types.



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 GTypePlugin structure for the dynamic interface interface_type which has been added to instance_type, or NULL if interface_type has not been added to instance_type or does not have a GTypePlugin structure. See g_type_add_interface_dynamic().


Returns the most specific instantiatable prerequisite of an interface type. If the interface type has no instantiatable prerequisite, G_TYPE_INVALID is returned.

Available since: 2.68


Returns the GTypeInterface structure of an interface to which the passed in class conforms.


Returns the prerequisites of an interfaces type.

Available since: 2.2

Instance methods


Returns the corresponding GTypeInterface 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.