-typedef int (CEC_CDECL* CBCecLogMessageType)(void *param, const cec_log_message &);
-typedef int (CEC_CDECL* CBCecKeyPressType)(void *param, const cec_keypress &);
-typedef int (CEC_CDECL* CBCecCommandType)(void *param, const cec_command &);
-typedef int (CEC_CDECL* CBCecConfigurationChangedType)(void *param, const libcec_configuration &);
-typedef int (CEC_CDECL* CBCecAlertType)(void *param, const libcec_alert, const libcec_parameter &);
+typedef int (CEC_CDECL* CBCecLogMessageType)(void *param, const cec_log_message);
+typedef int (CEC_CDECL* CBCecKeyPressType)(void *param, const cec_keypress);
+typedef int (CEC_CDECL* CBCecCommandType)(void *param, const cec_command);
+typedef int (CEC_CDECL* CBCecConfigurationChangedType)(void *param, const libcec_configuration);
+typedef int (CEC_CDECL* CBCecAlertType)(void *param, const libcec_alert, const libcec_parameter);