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  1. Qt
  2. QTBUG-121987

Creating a new QMouseEvent can change globalPosition() in other QMouseEvents

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    • Linux/Wayland

    Description

          QMouseEvent e(QEvent::MouseButtonPress, QPointF(10, 10), QPointF(40, 50), Qt::LeftButton, Qt::LeftButton, Qt::NoModifier);
          Q_ASSERT(e.globalPosition() == QPointF(40, 50));
      
          QMouseEvent ee(e.type(), QPointF(10, 10), e.pos(), e.button(), e.buttons(), e.modifiers());
          Q_ASSERT(e.globalPosition() == QPointF(40, 50)); 

      The following code doesn't work as expected. The global position in "e" changes after creating "ee".

      I've attached a demo app that demonstrates the issue. The expected behavior is that the global position in the first mouse event remains unchanged after creating the second event.

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        1. event-bug.zip
          0.9 kB
          Vlad Zahorodnii
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            srutledg Shawn Rutledge
            zzag Vlad Zahorodnii
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            Dates

              Created:
              Updated:

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