[Qt-interest] How to disable QWidget auto fill background before paintEvent?

[Dong Tiger]

Hi,

I know Qt::WA_NoSystemBackground is for this purpose. It does work if
composition is disabled and it also works with Qt4.3 when composition is
enabled. But with Qt4.5 and composition enabled, the widget will be
automatically filled with transparent background before paintEvent being
called. But I don't want to repaint the whole widget.

Any idea? TIA.

--
Tiger
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.qt-project.org/pipermail/qt-interest-old/attachments/20090514/749f13b6/attachment.html