Sets the action as enabled or not.
An action must be enabled in order to be activated or in order to
have its state changed from outside callers.
This should only be called by the implementor of the action. Users
of the action should not attempt to modify its enabled flag.
Since 2.28
Sets the action as enabled or not. An action must be enabled in order to be activated or in order to have its state changed from outside callers. This should only be called by the implementor of the action. Users of the action should not attempt to modify its enabled flag. Since 2.28