gobject:object-interface-list-properties (gtype)

gtype -- a g:type-t type ID for an interface type

The list of g:param-spec instances for all properties of an interface type.

Lists the properties of an interface type. Signals an error if the gtype type ID is not an "GInterface" type.

(mapcar #'g:param-spec-name
        (g:object-interface-list-properties "GAction"))
=> ("enabled" "name" "parameter-type" "state" "state-type")