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I’ve created a QMainWindow class. I coded a QGridLayout for the main layout, but whenever I add setLayout(grid); this error comes up:
QWidget::setLayout: Attempting to set QLayout "" on MainWindow "", which already has a layout
As far as I know, I haven’t added any sort of layout in my code before.
I’m using Qt Creator and using Linux (ubuntu 12.10).
What you can do is create a QWidget set it as the central widget and give this one a layout. QMainWindow has its own layout already to place statusbar and mainmenu thus you can’t set another one directly.