interface_add_prerequisite

Description:

public void interface_add_prerequisite (Type prerequisite_type)

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.

Parameters:

prerequisite_type	Type value of an interface or instantiatable type
interface_type	Type value of an interface type