QMessageBox内部堆叠的小部件

I am working in QT and have a QStackedWidget and a button on level 0 of the stacked widget. This button makes a messagebox appear on level 1 of the stacked widget. Is there a way to make the messagebox appear regardless of which level of the stacked widget i am currently looking at? So if a message box appears at level 1, is there a way so that it shows up regardless of which level of the QStackedWidget I am looking at?I am working in QT and have a QStackedWidget an