How to change the color of background of QMainwindow?

[weixj2003ld]

When I create a QMainwindow only(that is ,there is no DockWidget,no central Widget),and the main area color is grey,how to change it to other color ,such as white?

Added after 8 minutes:

shows as picture.
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[ChrisW67]

QMainWindow m;
m.setStyleSheet("QMainWindow {background: 'yellow';}");
m.show();

[Krump Lee]

Did you try subclassing QMainWindow's paintEvent?

[weixj2003ld]

QMainWindow m;
m.setStyleSheet("QMainWindow {background: 'yellow';}");
m.show();


It can change the background color of QMainWindow,but it change the background color of Tool bar and status,too.


Did you try subclassing QMainWindow's paintEvent?

I have subclassed QMainWindow's paintEvent,but I'm sorry how to do in it?

[wysota]

What you want is to change the background of the centralWidget of the main window.