+ static const char *ToString(const cec_menu_state state);
+ static const char *ToString(const cec_deck_control_mode mode);
+ static const char *ToString(const cec_version version);
+ static const char *ToString(const cec_power_status status);
+ static const char *ToString(const cec_deck_info status);
+ static const char* ToString(const cec_logical_address address);
+ static const char* ToString(const cec_opcode opcode);
+ static const char *ToString(const cec_system_audio_status mode);
+ static const char *ToString(const cec_audio_status status);
+ static const char *ToString(const cec_vendor_id vendor);
+