C++ Qt signal and slot not firing

Question

I am having difficulty in my Qt program with connecting button signals to my slots. My code is:

Main.cpp

#include 
#include         


        

Answer 1

Add Q_OBJECT to your class, like this:

class MainWidget : public QWidget
{
    Q_OBJECT

You also have to run moc to generate some helper code. qmake does that automatically for your, but if you compile this yourself, you need to run moc.