Widgets Tutorial - Child Widgets

We can add a child widget to the window created in the previous example by passing window as the parent to its constructor. In this case, we add a button to the window and place it in a specific location:

#include <QtWidgets>

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    QWidget window;
    window.resize(320, 240);
    window.setWindowTitle
          (QApplication::translate("childwidget", "Child widget"));
    window.show();

    QPushButton *button = new QPushButton(
        QApplication::translate("childwidget", "Press me"), &window);
    button->move(100, 100);
    button->show();
    return app.exec();
}

The button is now a child of the window and will be deleted when the window is destroyed. Note that hiding or closing the window does not automatically destroy it. It will be destroyed when the example exits.

Example project @ code.qt.io

© 2024 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners. The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation. Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners.