-class WXDLLEXPORT wxRenderer;
-
-// ----------------------------------------------------------------------------
-// wxMenu helper classes, used in implementation only
-// ----------------------------------------------------------------------------
-
-// used by wxRenderer
-class WXDLLEXPORT wxMenuGeometryInfo
-{
-public:
- // get the total size of the menu
- virtual wxSize GetSize() const = 0;
-
- virtual ~wxMenuGeometryInfo();
-};
+class WXDLLIMPEXP_FWD_CORE wxMenuGeometryInfo;
+class WXDLLIMPEXP_FWD_CORE wxPopupMenuWindow;
+class WXDLLIMPEXP_FWD_CORE wxRenderer;