Hello;

I'm trying the implement in the same App three QMainWindow having the same parent QMainWindow.

Wa: QMainWindow
Wb: QMainWindow
Wc: QMainWindow
Parent of Wa, Wb and Wc: QMainWindow

Please see the image for the arrangement of Wa, Wb and Wc (they are from left to right in the image).

Thanks;

Mut.

Three QMainWindow sharing thee areas of same top QMainWindow.jpg