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  1. Qt
  2. QTBUG-74763

[REG 5.7.0->5.12.0] macOS: mouse move events button() method returns Qt::LeftButton

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    • Icon: Bug Bug
    • Resolution: Done
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    • 5.12.4
    • 5.12.0
    • Widgets: GraphicsView
    • None
    • macOS Mojave
    • macOS

      According to your documentation https://doc.qt.io/qt-5/qmouseevent.html#button, events with the type MouseMove, should return Qt::NoButton from their button() method, and it was the case at least in Qt5.7.0.   Yet right now, while using Qt5.12.0, button() for those type of events reports Qt::LeftButton on macOS (and only on macOS; Linux and Windows are fine).  Please see attached example project.

        1. test-dragging-item.zip
          2 kB
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            mikhailsvetkin Mikhail Svetkin
            dmytrosh Dmytro Shtepa
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