I have a QMainWindow with a QWorkspace area in which I open other widgets/windows. For some reason the lower right "corner" of my QWorkspace (the small area where the two QScrollBar's meet) is transparent, which I don't like... If I for example move one of the windows in the workspace area so that some visible part of it comes "under" that area, it "shines through", as can be seen in the attached image.
How can I set this small area to be, for example, all white instead of transparent?
(I use Qt 4.6.1 on Windows.)
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