Why can't I add my Widget to Layout (Qt)?

Question

Qt

I wrote such a simple Widget:

class but_indicate : public QWidget
{
    Q_OBJECT
public:
    explicit but_indicate(QWidget *parent = nullptr);

private:
    QLabel *lb1, *lb2;

public slots:
    void buttonPressed();
    void buttonReleased();
};

Here is its constructor:

but_indicate::but_indicate(QWidget *parent) : QWidget(parent)
{
    QHBoxLayout* tbLO = new QHBoxLayout;
    lb1 = new QLabel("Simple button is not pressed.");
    lb1->setFrameStyle(QFrame::Box);
    lb1->setLineWidth(1);
    lb2 = new QLabel("Toggle button is not pressed.");
    lb2->setFrameStyle(QFrame::Box);
    lb2->setLineWidth(1);
    tbLO->addWidget(lb1);
    tbLO->addWidget(lb2);
    setLayout(tbLO);
}

Can I add it to QVBoxLayout at all? If I use my Widget alone then it works great:

but_indicate* b = new but_indicate;
    b->show();

If I want to add it to QVBoxLayout, then I get the error "'but_indicate' does not refer to a value":

QVBoxLayout* mainLO = new QVBoxLayout;
    mainLO->addWidget(but_indicate); //вот тут ошибка

What could be wrong?

Answer 1

I accidentally wrote the name of the class instead of the name of the variable in the last line, there were no problems in the implementation of the class.