new class inherited from QLabel not showing in parent window

[herrgross]

Hi everyone,
I created a new class inherited from QLabel.

#ifndef WANDERLABEL_H
#define WANDERLABEL_H

#include <QLabel>
#include <QTimer>

class wanderLabel : public QLabel
{
    Q_OBJECT
public:
    wanderLabel();
private:
    QTimer* timer;
private slots:
    void moveLabel();
};

#endif // WANDERLABEL_H

in my cpp I added:

Matrix::Matrix(QWidget *parent)
    : QMainWindow(parent)
{
    setGeometry(400, 300, 400, 400);
    QLabel* test;
    test = new QLabel(this);
    test->setText("test");
    wanderLabel* wanderer;
    wanderer = new wanderLabel(this);
    wanderer->setText("1");
//wanderer->show();
}

while any QLabel instance is correctly showing,
creating an instance of wanderlabel gives me the error: no matching constructor.
So I changed the constructor:
wanderLabel(QWidget *parent = nullptr);
now, after adding show() it shows, but not in the widget, but as a new widget on the main screen.
What am I missing?

[Paul Colby]

@herrgross said in new class inherited from QLabel not showing in parent window:

So I changed the constructor:
wanderLabel(QWidget *parent = nullptr);

Did you pass the parent pointer to the super class? eg

wanderLabel::wanderLabel(QWidget *parent = nullptr)
    : QLabel(parent) ///< this part?
{
}

Cheers.

[herrgross]

@Paul-Colby
that's what it was! thank you!!