+namespace Properties {
+ LIBARDOUR_API extern PBD::PropertyDescriptor<uint32_t> order;
+ LIBARDOUR_API extern PBD::PropertyDescriptor<uint32_t> color;
+ LIBARDOUR_API extern PBD::PropertyDescriptor<bool> selected;
+ /* we use this; declared in region.cc */
+ LIBARDOUR_API extern PBD::PropertyDescriptor<bool> hidden;
+}
+
+class LIBARDOUR_API PresentationInfo : public PBD::Stateful