+ static uint32_t port_index(void* controller, const char* symbol);
+
+ static void touch(void* controller,
+ uint32_t port_index,
+ bool grabbed);
+
+ static uint32_t request_parameter (void* handle, LV2_URID key);
+ void set_path_property (int,
+ const ARDOUR::ParameterDescriptor&,
+ Gtk::FileChooserDialog*);
+ std::set<uint32_t> active_parameter_requests;
+
+ void update_timeout();