[Solved] Refresh LCD from QDial value changed doesn't work.

[Rhadel]

!http://s12.postimg.org/olfjke5m5/voltage_Set.png(Voltimeter)!

I ve created on a frame a QWidget with a voltimeter panel as shown at image.

In Qt Creator I right-click on QDial, and then -->Go to Slot, and then valueChanged(int).

It creates an slot on my class named @on_dial_valueChanged(int value) @
Impementation of this method is:

@
qDebug() << "Changing dial: " << value;
this->electro->setVolts(value); //Just for logical usage.
this->ui->lcdNumber->display(electro->getVolts());
@

In order to change LCD value, but It doesn't work. It's never called when changing dialing. I think connect(...) method for signal is autoimplemented for Qt Creator, isnt?

Thank you.

[butterface]

Do you have a QApplication?
Do you have Q_OBJECT where needed?
Does the moc run?

[Rhadel]

Hello, and thanks for your fast reply!

I have a QApplication, and clean & moc runs Ok.

I miss Q_OBJECT in custom QGraphicsObject class that handles the graphic paint, as shown:

@
class MeasuramentGraphic : public QGraphicsObject
{
Q_OBJECT
public:
explicit MeasuramentGraphic();
(...)
@

I added it, but now, I have this compile-time issue:

@
....stimulatorgraphic.o:-1: In function ZN18MeasuramentGraphicD1Ev': measuramentgraphic.h:11: error: undefined reference to vtable for MeasuramentGraphic'
measuramentgraphic.o:-1: In function ZN18MeasuramentGraphicC2Ev': measuramentgraphic.cpp:5: error: undefined reference to vtable for MeasuramentGraphic'
(...)
@

I have all the needed headers in its correct place.

--------------------- EDIT------------------------

Thank you again for your fast reply. To fix it, I just cleaned & build again, like that, moc generates new .o files. It compiles, and runs Ok. Thank you.