+class FGRelAxisEvent : public FGAxisEvent {
+public:
+ FGRelAxisEvent( FGInputDevice * device, SGPropertyNode_ptr node );
+protected:
+ virtual void fire( SGBinding * binding, FGEventData & eventData );
+};
+
+class FGAbsAxisEvent : public FGAxisEvent {
+public:
+ FGAbsAxisEvent( FGInputDevice * device, SGPropertyNode_ptr node ) : FGAxisEvent( device, node ) {}
+protected:
+ virtual void fire( SGBinding * binding, FGEventData & eventData );
+};
+