//! \writeme
#define EXPORT_VERSION() if(param=="Version" || param=="version" || param=="version__") { return version__; }
+//! This is used as the category for layer book entries which represent aliases of layers.
+//! It prevents these layers showing up in the menu.
+#define CATEGORY_DO_NOT_USE "Do Not Use"
+
/* === T Y P E D E F S ===================================================== */
/* === C L A S S E S & S T R U C T S ======================================= */
//! Duplicates the Layer
virtual Handle clone(const GUID& deriv_guid=GUID())const;
+#ifdef THIS_CODE_IS_NOT_USED
//! Duplicates the Layer without duplicating the value nodes
virtual Layer *simple_clone()const;
+#endif /* THIS_CODE_IS_NOT_USED */
protected: