1 files changed, 2 insertions, 1 deletions
diff --git a/src/mono_picture_frame.h b/src/mono_picture_frame.h
index 50ea0891..bcd7024b 100644
--- a/src/mono_picture_frame.h
+++ b/src/mono_picture_frame.h
@@ -25,6 +25,7 @@
 #include <boost/shared_ptr.hpp>
 #include <boost/noncopyable.hpp>
 #include <boost/filesystem.hpp>
+#include <boost/optional.hpp>
 #include <string>
 #include <stdint.h>
 
@@ -51,7 +52,7 @@ public:
 	~MonoPictureFrame ();
 
 	boost::shared_ptr<ARGBFrame> argb_frame (int reduce = 0, float srgb_gamma = 2.4) const;
-	void rgb_frame (uint16_t* buffer) const;
+	void rgb_frame (uint16_t* buffer, boost::optional<NoteHandler> note = boost::optional<NoteHandler> ()) const;
 	uint8_t const * j2k_data () const;
 	uint8_t* j2k_data ();
 	int j2k_size () const;