qobject_cast and shared_ptr

Question

Sorry for my English. I have some class.

class AdaptedWidget: public QWidget
{
    Q_OBJECT
public:
    AdaptedWidget(AdaptedWidget *parent = 0) {nothing}
    bool event(QEvent *event);
};

bool WindowManager::eventFilter(QObject *target, QEvent *event)
{
    auto window = qobject_cast<AdaptedWidget*>(target);
    **auto windowSharedPtr = std::make_shared<AdaptedWidget>(window);** //Error 
    ...

I need create from AdaptedWidget* smart pointer. I need to override the copy constructor? Or is the problem in the enforcement types?