If this boolean attribute is set to .TRUE., an error will be reported if an attempt is made to add a new entry to the KeyMap. Note, the value associated with any existing entries can still be changed, but no new entries can be stored in the KeyMap. The default value (.FALSE.) allows new entries to be added to the KeyMap.

KeyMap

• When setting a new value for MapLocked, the supplied value is propagated to any KeyMaps contained within the supplied KeyMap.

• When clearing the MapLocked attribute, the attribute is also cleared in any KeyMaps contained within the supplied KeyMap.