(defcstruct g-param-spec-ulong
  (:parent-instance (:pointer (:struct g-param-spec)))
  (:minimum :ulong)
  (:maximum :ulong)
  (:default-value :ulong))  

:parent-instance

Private g-param-spec portion.

:minimum

An unsigned long integer with the minimum value.

:maximum

An unsigned long integer with the maximum value.

:default-value

An unsigned long integer with the default value.