<gunnar.sletta <at> nokia.com> writes:
> A default constructed pixmap is opaque by default and will not have a mask > and will not have an alpha channel. > X11 is the only platform where we make a distinction between mask and alpha channel as Mac OS X, Windows and > the Qt 5 lighthouse platforms use QImage with mask baked into the alpha channel. opacity = 0 means mask is 1. > > You need to fill a QPixmap with Qt::transparent or some other non-opaque > color for it to get an alpha channel. Hi Gunnar, thanks for the reply, I have made the QBlittablePlatformPixmap figure out if the underlying graphic memory should have an alpha channel or not. I understand why being conservative for QPixmap makes sense... I have pushed the fixes to my qtbase branch, once the other directfb patches get unstuck I can file a merge request. thanks for your feedback holger _______________________________________________ Qt5-feedback mailing list [email protected] http://lists.qt.nokia.com/mailman/listinfo/qt5-feedback
