fixed type specifyer keithley_thr on_current

hit2023v2/keithley_thr.cpp

@@ -92,7 +92,7 @@ keithley_thr::~keithley_thr()
 //************************** slots for communication with worker thread ******************
 
     //called on each current readout
-keithley_thr::on_currentReadout(const double value)
+void keithley_thr::on_currentReadout(const double value)
 {
     lastCurrentReadout = value;
     emit esig_newCurrentReadout(lastCurrentReadout);

hit2023v2/keithley_thr.h

@@ -65,7 +65,7 @@ public:
 
     int recognizeSpillState(double current);
 public slots:
-    on_currentReadout(const double value);
+    void on_currentReadout(const double value);
     int on_isOpen(const int state, const QString givenPortName);
 signals:
     void sig_connect();