#include "lily-proto.hh"
#include "lily-guile.hh"
+#include "grob-interface.hh"
class Stem_tremolo
{
public:
- static bool has_interface (Grob *);
+ DECLARE_GROB_INTERFACE();
DECLARE_SCHEME_CALLBACK (calc_slope, (SCM));
DECLARE_SCHEME_CALLBACK (calc_width, (SCM));
DECLARE_SCHEME_CALLBACK (print, (SCM));