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  1. Qt
  2. QTBUG-77432

Pinch gesture does not work

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    • Windows

    Description

      On my Windows system a 2-finger pinch gesture does not work and following warning occurs: 

       qt.quick.touch.target: during delivery of touch press, synth-mouse ID 2000001 is missing from QQuickPointerEvent(1773 dev:TouchScreen [QQuickEventPoint(accepted:false state:Pressed scenePos:QPointF(254,177) id:2000002 timeHeld:0) ])

      I attached a simple test, but it is reproducible with Qt examples too (see Examples\Qt-5.13.0\quick\touchinteraction\pincharea)

      I turned on some debugging categories (qt.quick.touch qt.quick.touch.target), see debugOutputs.txt

      The same bug was already mentioned at the end of QTBUG-74008

      I opened a new bug report as suggested there

      In Qt 5.11.1 the pinch gesture still works, seems it got broken in 5.12.x

      Attachments

        1. debugOutputs.txt
          25 kB
        2. main.qml
          1 kB

        Issue Links

          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-70371 [REG 5.9->5.10]: When a PinchArea is on top of a Flickable that also has MouseAreas, then doing a pinch across different child items will not work

          • P1: Critical - Urgent and Important, will STOP the release if matched with set FixVersion field. This includes regressions from the last version that are not edge cases; Data loss; Build issues; All but the most unlikely crashes/lockups/hanging; Serious usability issues and embarrassing bugs & Bugs critical to a deliverable. This is the highest possible priority for requirements.
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              smd Jan Arve
              seven_new Michael
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                Created:
                Updated: