--- /dev/null
+/*
+ score-element-callback.hh -- declare Score_element callbacks
+
+ source file of the GNU LilyPond music typesetter
+
+ (c) 2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+
+ */
+
+#ifndef SCORE_ELEMENT_CALLBACK_HH
+#define SCORE_ELEMENT_CALLBACK_HH
+
+#include "lily-proto.hh"
+#include "lily-guile.hh"
+
+typedef SCM (* Score_element_callback) (Score_element * , SCM extra_params);
+SCM smobify_callback (Score_element_callback cb);
+
+
+#endif /* SCORE_ELEMENT_CALLBACK_HH */
+