I'd say that this tutorial would be a good next step for you: https://doc.qt.io/qt-5/qtwidgets-widgets-scribble-example.html https://doc.qt.io/qt-5/qtwidgets-wi

I'd say that this tutorial would be a good next step for you: https://doc.qt.io/qt-5/qtwidgets-widgets-scribble-example.html https://doc.qt.io/qt-5/qtwidgets-widgets-scribble-example.ht... Depending on your needs, you can also have a good look at QGraphicsView. Maybe you'll have an easier time when you compose your UI using QGraphicsItems.