From Jean-Sebastien Guay, "I changed osgGA::StateSetManipulator to mirror the

osgViewer::StatsHandler and other handlers which allow you to change the
key(s) you would press to get them to do something. Pretty simple change
but useful in our context and possibly in others too."

include/osgGA/StateSetManipulator

@@ -69,6 +69,19 @@ public:
         
         void cyclePolygonMode();
 
+
+        void setKeyEventToggleBackfaceCulling(int key) { _keyEventToggleBackfaceCulling = key; }
+        int getKeyEventToggleBackfaceCulling() const { return _keyEventToggleBackfaceCulling; }
+
+        void setKeyEventToggleLighting(int key) { _keyEventToggleLighting = key; }
+        int getKeyEventToggleLighting() const { return _keyEventToggleLighting; }
+
+        void setKeyEventToggleTexturing(int key) { _keyEventToggleTexturing = key; }
+        int getKeyEventToggleTexturing() const { return _keyEventToggleTexturing; }
+
+        void setKeyEventCyclePolygonMode(int key) { _keyEventCyclePolygonMode = key; }
+        int getKeyEventCyclePolygonMode() const { return _keyEventCyclePolygonMode; }
+
 protected:
 
         virtual ~StateSetManipulator();
@@ -81,6 +94,11 @@ protected:
         bool _texture;
         unsigned int _maxNumOfTextureUnits;
         
+        int _keyEventToggleBackfaceCulling;
+        int _keyEventToggleLighting;
+        int _keyEventToggleTexturing;
+        int _keyEventCyclePolygonMode;
+
         osg::PolygonMode* getOrCreatePolygonMode();
 };