How to delete all widgets from QStackedWidget?

How to delete all widgets from QStackedWidget? I need simply remove all widgets from QStackedWidget.

You need to iterate through all widgets and remove each of them:

for(int i = stackedWidget->count(); i >= 0; i--)
{
    QWidget* widget = stackedWidget->widget(i);
    stackedWidget->removeWidget(widget);
    widget->deleteLater();
}