(defcstruct g-param-spec-flags
  (:parent-instance (:pointer (:struct g-param-spec)))
  (:flags-class (:pointer g-flags-class))
  (:default-value :uint))  

:parent-instance

Private g-param-spec portion.

:flags-class

A g-flags-class class instance for the flags.

:default-value

An unsigned integer with the default value.