tabWidget duplicate frames

[anda_skoa]

The explicit connect would look something like this

MainWindow::MainWindow(QWidget* parent) 
    : QMainWindow(parent)
    , ui(new Ui::MainWindow)
{
    ui->setupUi(this);
 
    connect(ui->tabWidget, &QTabWidget::currentChanged, this, &MainWindow::onCurrentTabChanged);
}

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

    connect(ui->tabWidget, &QTabWidget::currentChanged, this, &MainWindow::onCurrentTabChanged);
}

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where onCurrentTabChanged would be the function you currently have, just with a different name. Can be any valid method name in that class.

Cheers,
_