allow qml demo choose special effect

Yuhang Zhao

2023-12-28 68c8cc026233e9694579ce38b8daa25008477d18

 src/core/contexts/qtwindowcontext_p.h

@@ -27,7 +27,7 @@
        void winIdChanged() override;

    protected:
        std::unique_ptr<QObject> qtWindowEventFilter;
        std::unique_ptr<SharedEventFilter> qtWindowEventFilter;
    };

}