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Qt 5.4 Gesture problem

  • Hello Everybody,

    I am trying to use swipe gesture with my application by using Qt 5.4. But I am facing with some problems.
    Sample gesture application(fingerpaint, knob, etc..) working fine with Qt 4.8 but whenever I compile exactly same cource code with Qt 5.4 gesture feature stop working. I don't know why this is happining.

    Note :
    Touch screen (Multi-touch) is connected my laptop (Ubuntu 14.04) with HDMI and USB (External)

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