void motion (wxMouseEvent &);
void mouse_wheel (wxMouseEvent &);
boost::optional<std::pair<int, int> > mouse_event_to_channels (wxMouseEvent& ev) const;
+ boost::optional<std::string> mouse_event_to_input_group_name (wxMouseEvent& ev) const;
void setup ();
+ wxString safe_input_channel_name (int n) const;
+ wxString safe_output_channel_name (int n) const;
void off ();
void full ();