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  1. Qt for Python
  2. PYSIDE-1898

QMetaObject.invokeMethod with arguments not possible

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Details

    • Bug
    • Resolution: Done
    • Not Evaluated
    • None
    • 6.3
    • PySide
    • None
    • All
    • aae2f599e8 (pyside/pyside-setup/dev) aae2f599e8 (pyside/tqtc-pyside-setup/dev), e738f1a37 (dev)

    Description

      At the moment, it is not possible to use QMetaObject.invokeMethod with something that requires an argument, as `Q_ARG` and `Q_RETURN_ARG` macros aren't exposed to Python. `QGenericArgument` and `QGenericReturnArgument` should and cannot be used directly.

      Use case is invoking a method in a different thread, for example.

      Potential workaround until this is fixed: Using a singleshot QTimer with Qt.QueuedConnection.

      Attachments

        Issue Links

          is duplicated by

          Bug - A problem which impairs or prevents the functions of the product. PYSIDE-1262 Q_ARG missing, invokeMethod doesn't work currently with arguments in PySide2.

          • Not Evaluated - Not yet evaluated/prioritized
          • Closed
          relates to

          Bug - A problem which impairs or prevents the functions of the product. PYSIDE-1253 Calling QMetaObject.invokeMethod with BlockingQueuedConnection freezes

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. PYSIDE-2500 invokeMethod or QMetaMethod->invoke() not possible for more than 3 arguments

          • P3: Somewhat important - Should be fixed, but doesn't affect the release in any way.
          • Closed
          resulted in

          Bug - A problem which impairs or prevents the functions of the product. PYSIDE-2121 REG->6.4.0-: QMetaObject.invokeMethod(BlockingQueuedConnection) causes deadlock

          • 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.
          • Closed
          For Gerrit Dashboard: PYSIDE-1898
          # Subject Branch Project Status CR V
          408143,3 libpyside: Move the UNICODE conversion into the library dev pyside/pyside-setup Status: MERGED +2 0
          408144,4 libpyside: Add function to convert a PyTypeObject to a QMetaType dev pyside/pyside-setup Status: MERGED +2 0
          408145,18 Implement Q_ARG/Q_RETURN_ARG for QMetaObject.invokeMethod() with arguments dev pyside/pyside-setup Status: MERGED +2 0
          408376,2 libpyside: Add QString to UNICODE conversion dev pyside/pyside-setup Status: MERGED +2 0
          409627,5 libpyside: Fix qMetaTypeFromPyType() for wrapped types dev pyside/pyside-setup Status: MERGED +2 0
          409812,2 WIP: Implement meta calls with objects dev pyside/pyside-setup Status: ABANDONED -2 0
          410097,7 shiboken6: Add type behavior to SbkObjectType dev pyside/pyside-setup Status: MERGED +2 0
          410102,3 QMetaType: Add a constructor taking a PyTypeObject dev pyside/pyside-setup Status: MERGED +2 0
          430917,2 Enable type strings in Q_ARG/Q_RETURN_ARG for QMetaObject.invokeMethod() dev pyside/pyside-setup Status: MERGED +2 0
          443627,2 Fix a deadlock when using QMetaObject.invokeMethod(BlockingQueuedConnection) dev pyside/pyside-setup Status: MERGED +2 0
          443652,2 Fix a deadlock when using QMetaObject.invokeMethod(BlockingQueuedConnection) 6.4 pyside/pyside-setup Status: MERGED +2 0

          Activity

            People

              crmaurei Cristian Maureira-Fredes
              strahlex Alexander Rössler
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              Dates

                Created:
                Updated:
                Resolved: