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  1. Qt
  2. QTBUG-74700

Windows Pointer API support uses PointerId for QTabletEvent::uniqueId

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: P1: Critical
    • Resolution: Done
    • Affects Version/s: 5.12.1
    • Fix Version/s: 5.12.3
    • Labels:
      None
    • Platform/s:
      Windows
    • Commits:
      534df5a33bd6a3d0d00194212cf868a9ef57bd53

      Description

      Qt uses POINTER_INFO::pointerId for https://doc.qt.io/qt-5/qtabletevent.html#uniqueId. The documentation says that uniqueId "returns a unique ID for the current device, making it possible to differentiate between multiple devices being used at the same time on the tablet."

      As noted in https://bugs.kde.org/show_bug.cgi?id=405494#c14, POINTER_INFO::sourceDevice might be a better choice, since pointerId changes every time the pen approaches the tablet, which means we cannot use it to recognize the stylus.

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        # Subject Branch Project Status CR V

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            Assignee:
            anrocha André De La Rocha
            Reporter:
            boudewijn Boudewijn Rempt
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              Dates

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              Updated:
              Resolved:

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