Cannot get second QWidget window to show

[Poldi]

I'm learning Qt and cannot figure out why the second window doesn't display

#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>
#include "connectionstatus.h"

QT_BEGIN_NAMESPACE
namespace Ui {
class MainWindow;
}
QT_END_NAMESPACE

class MainWindow : public QMainWindow
{
    Q_OBJECT

public:
    MainWindow(QWidget *parent = nullptr);
    ~MainWindow();

private slots:
    void connect();

private:
    Ui::MainWindow *ui_;
    ConnectionStatus *statusWindow_;
};
#endif // MAINWINDOW_H

#include <QDebug>
#include "mainwindow.h"
#include "./ui_mainwindow.h"

MainWindow::MainWindow(QWidget *parent)
    : QMainWindow(parent)
    , ui_(new Ui::MainWindow)
{
    ui_->setupUi(this);
    QWidget::connect(ui_->connectButton, &QAbstractButton::pressed, this, &MainWindow::connect);
}

MainWindow::~MainWindow()
{
    delete ui_;
}

void MainWindow::connect()
{
    // statusWindow_ = new ConnectionStatus(this);
    statusWindow_ = new ConnectionStatus();
    statusWindow_->setParent(this);
    statusWindow_->activateWindow();
    statusWindow_->show();
    qDebug() << "Window popup";
}

#ifndef CONNECTIONSTATUS_H
#define CONNECTIONSTATUS_H

#include <QWidget>

namespace Ui {
class ConnectionStatus;
}

class ConnectionStatus : public QWidget
{
    Q_OBJECT

public:
    explicit ConnectionStatus(QWidget *parent = nullptr);
    ~ConnectionStatus();

private:
    Ui::ConnectionStatus *ui;
};

#endif // CONNECTIONSTATUS_H

#include "connectionstatus.h"
#include "ui_connectionstatus.h"

ConnectionStatus::ConnectionStatus(QWidget *parent)
    : QWidget(parent)
    , ui(new Ui::ConnectionStatus)
{
    ui->setupUi(this);
}

ConnectionStatus::~ConnectionStatus()
{
    delete ui;
}

Thanks

[ChrisW67]

Do you see your qDebug() output? I am going to assume yes.

I suspect you want a separate free-floating window. Making this ConnectionStatus widget a child of the existing one will also place it inside the client area of that parent widget. Your new widget may be rendered underneath other content in that area (especially as it is not part of that layout involved).
Try removing the call to parent().

If you parented the widget to ensure that the object is deleted then you'll need an alternate approach to that.

Currently you will create a new ConnectionStatus every time the user clicks the button. This may not be the intent.

[Poldi]

@ChrisW67 Thanks for thew quick reply
After making the second window a new window it did show up.
I also had only one display only field on the second window, which when I made it part of the parent didn't show up, so I thought it didn't work.
Thanks