How to Change QMenuBar Colour in Vista using QtDesigner

[runiac]

Hi,

I have managed to change menu bar background colour using styleSheet property in property editor in QtCreator or QtDesigner.

When I select Form->Preview in Windows or Windows XP style, the menu bar is black, just as I've selected in the property editor.

However, in Windows Vista style, the menu bar has that standard Vista colour, just as in any other window in Windows Vista.

Is it possible to change menu bar colour in Vista using QtDesigner?

Thanks a lot in advance.