Example
Q_OBJECT macro appears in private section of a class. Q_OBJECT requires the class to be subclass of QObject. This macro is necessary for the class to declare its signals/slots and to use Qt meta-object system.
If Meta Object Compiler (MOC) finds class with Q_OBJECT, it processes it and generates C++ source file containing meta object source code.
Here is the example of class header with Q_OBJECT and signal/slots:
#include <QObject>
class MyClass : public QObject
{
Q_OBJECT
public:
public slots:
void setNumber(double number);
signals:
void numberChanged(double number);
private:
}
