diff --git a/vcg/complex/all_types.h b/vcg/complex/all_types.h
new file mode 100755
index 00000000..10de611f
--- /dev/null
+++ b/vcg/complex/all_types.h
@@ -0,0 +1,16 @@
+#ifndef VCG_ALL_TYPES_H
+#define VCG_ALL_TYPES_H
+
+namespace vcg{
+
+struct AllTypes{
+		struct AVertexType {};
+		struct AEdgeType {};
+		struct AFaceType {};
+		struct AHEdgeType {};
+};
+
+
+};
+
+#endif // USED_TYPES_H
diff --git a/vcg/complex/used_types.h b/vcg/complex/used_types.h
index 07cc8286..22968818 100755
--- a/vcg/complex/used_types.h
+++ b/vcg/complex/used_types.h
@@ -5,14 +5,26 @@
 #include <vcg/space/point3.h>
 #include <vcg/container/derivation_chain.h>
 
+#include <vcg/simplex/vertex/base.h>
+#include <vcg/simplex/face/base.h>
+#include <vcg/simplex/edge/base.h>
+#include <vcg/connectors/hedge.h>
+
 namespace vcg{
 
+// dummy mesh
+
+struct _Vertex;
+struct _Edge  ;
+struct _Face  ;
+struct _HEdge ;
+
 struct DummyTypes{
-		typedef char VertexType; 		// simplex types
-		typedef char EdgeType;
-		typedef char FaceType;
-		typedef char TetraType;
-		typedef char HEdgeType; 		// connector types
+		typedef _Vertex VertexType; 		// simplex types
+		typedef _Edge EdgeType;
+		typedef _Face FaceType;
+	 	typedef char TetraType;
+		typedef _HEdge HEdgeType; 		// connector types
 
 		typedef vcg::Point3<bool> CoordType; 		 
 		typedef char ScalarType;						 
@@ -28,12 +40,6 @@ struct DummyTypes{
     void ImportLocal(const LeftV  & /*left*/ ) {}
 };
 
-struct AllTypes{
-		struct AVertexType {};
-		struct AEdgeType {};
-		struct AFaceType {};
-		struct AHEdgeType {};
-};
 
 template <template <typename> class A = DefaultDeriver, template <typename> class B = DefaultDeriver,
 					template <typename> class C = DefaultDeriver, template <typename> class D = DefaultDeriver,
@@ -54,6 +60,19 @@ template <class A>
 		template <class T> struct AsHEdgeType: public T{typedef A HEdgeType;		typedef HEdgeType * HEdgePointer		;};
 };
 
+	
+struct _UsedTypes: public UsedTypes< 
+	Use<_Vertex>::AsVertexType,
+	Use<_Edge  >::AsEdgeType,
+	Use<_Face  >::AsFaceType,
+	Use<_HEdge >::AsHEdgeType
+>{};
+
+struct _Vertex: public  Vertex<_UsedTypes>{};
+struct _Edge  : public  Edge<_UsedTypes>{};
+struct _Face  : public  Face<_UsedTypes>{};
+struct _HEdge : public  HEdge<_UsedTypes>{};
+
 };
 
 #endif // USED_TYPES_H