Provide a copy of a boxed structure src_boxed which is of type boxed_type.
Free the boxed structure boxed which is of type boxed_type.
Creates a new G_TYPE_POINTER derived type id for a new pointer type with name name.
This function creates a new G_TYPE_BOXED derived type id for a new boxed type with name name. Boxed type handling functions have to be provided to copy and free opaque boxed structures of this type.