Add QWidget or other QWidget derived controls into QWindow

Question

QtGUI and QtWidgets have been separated in Qt5.

How can I add QWidget or other QWidget derived controls into QWindow ?

Answer 1

A QWindow is not meant to be used that way. Instead of using a QWindow directly, you need a QWidget instead. A parentless QWidget by default becomes a top-level window.

If you have a particular reason to use a QWindow , you'll have to edit your question to provide details on your design; most likely your design is incorrect.