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-rw-r--r--gtk2_ardour/panner_interface.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/gtk2_ardour/panner_interface.h b/gtk2_ardour/panner_interface.h
index eb2ee4334e..07d14abf03 100644
--- a/gtk2_ardour/panner_interface.h
+++ b/gtk2_ardour/panner_interface.h
@@ -24,8 +24,13 @@
#include <gtkmm/drawingarea.h>
#include <gtkmm/label.h>
#include "gtkmm2ext/persistent_tooltip.h"
+
#include "pbd/destructible.h"
+namespace PBD {
+ class Controllable;
+}
+
namespace ARDOUR {
class Panner;
}
@@ -63,6 +68,7 @@ public:
protected:
virtual void set_tooltip () = 0;
+ virtual boost::weak_ptr<PBD::Controllable> proxy_controllable () const = 0;
void value_change ();