Latest Flash Player for OS X not working with Qt 4.8.n applications.



  • After the latest Flash Player update, to version 11.8.800.94, Flash areas in QWebView and QGraphicsWebView objects stopped working in OS X. GUI is never shown, but sound can be heard.

    This happens at least using x86 OS X compiled versions of Qt 4.8.2 and 4.8.5 together with both our cross platform application and the "fancybrowser" example included with Qt (with one additional statement to enable plugins).
    Qt 5.1.0 work fine in OS X, Windows applications based on Qt 4.8.n work fine and if we downgrade the OS X Flash player to some earlier version, like 11.7.700.232 things work fine too.

    None of the examples at this page work: http://www.adobe.com/devnet/flash/samples.html

    Update!
    When using the non working Flash plugin the invalidRect argument passed to NPN_InvalidateRect (in "npapi.cpp") always have the dimension (0, 0, 2000, 2000). When using working Flash plugins the area varies depending on GUI updates and always have more sane values.

    Has anyone else experienced this problem? Is there a solution?

    Thanks in advance!

    /Roger


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