CardLayout
BCardLayout* CardLayout() const;
fLayout((new BCardView())->CardLayout())
fLayout(view->CardLayout())
message, fCardView->CardLayout()->VisibleItem()->View());
fCardView->CardLayout()->SetVisibleItem(index);
message, fCardView->CardLayout()->VisibleItem()->View());
message, fCardView->CardLayout()->VisibleItem()->View());