improve qml demo

Zhao Yuhang

2024-05-08 85e783997ffd9629cdaef44b7d482f23c8ca49cb

 src/core/windowitemdelegate.cpp

@@ -17,7 +17,7 @@
    WinIdChangeEventFilter *
        WindowItemDelegate::createWinIdEventFilter(QObject *host,
                                                   AbstractWindowContext *context) const {
        return new WindowWinIdChangeEventFilter(host, context);
        return new WindowWinIdChangeEventFilter(static_cast<QWindow *>(host), context);
    }

}