QT How to remove the action menu item
this one helps. If you want to hide an QAction and display it when you need
it, you can use the setVisible function.If you want to remove the menu bar
from the QMainWindow, you can use the QT_NO_MENUBAR preprocessor to remove
all uses of a QMenuBar.
Date : October 14 2020, 01:07 PM , By : user3853061