I started a thread in the Qwt subforum about this issue, but I've since realized that the issue is not Qwt specific. My Qwt thread is here:

http://www.qtcentre.org/threads/5414...QGraphicsScene

I've embedded a QWidget in a QGraphicsScene, and I'm trying to handle the MouseButtonPress and MouseButtonRelease events. The QWidget gets all events except MouseButtonRelease. For some reason, it's not getting propagated to the QWidget when it's embedded in a QGraphicsScene. I've tested the other mouse and keyboard events, and they all get propagated to the QWidget just fine. What's special about MouseButtonRelease?

I'm using Qt 4.8 on Linux x86_64.