Why is my slot not being called?

Question

I have this class:

class CustomEdit : public QTextEdit
{
    Q_GADGET

public:
    CustomEdit(QWidget* parent);

public slots:
    void onTextChanged ();
};

CustomEdit::CustomEdit(QWidget* parent)
    : QTextEdit(parent)
{
    connect( this, SIGNAL(textChanged()), this, SLOT(onTextChanged()));
}


void CustomEdit::onTextChanged ()
{
    // ... do stuff
}

The onTextChanged method is never called when I type text into the edit control.
What am I missing?

Answer 1

All classes that contain signals or slots must mention Q_OBJECT at the top of their declaration. They must also derive (directly or indirectly) from QObject.

Try using Q_OBJECT