Add virtual hook

Sine Striker

2023-12-11 573488a6fec17a9fc71e4d8b0a4741c107ab4ef8

 src/widgets/widgetwindowagent_p.h

@@ -16,6 +16,8 @@

        // Host
        QWidget *hostWidget{};

        std::unique_ptr<QObject> paintFilter;
    };

}