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How mimic Qt 4.7.4 touch handling in Qt 5.1.1

  • We have an application that runs on Win 7. I've tried it out with Surface Input Simulator on my desktop to prepare for deploy to a Win 8 tablet.
    Compiled against Qt 4.7.4 it works as expected, Tap and hold in a QTreeWidget gives me the expected context menu...

    When I run the application compiled against 5.1.1 and do the same thing I can maybe get the context menu once and only once. If I reset the touch input I can maybe the the context menu once more...

    What do I need to do to mimic the behavior I get in Qt 4.7.4

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