Behaviour of a c++ model update from a different thread from which the QML QtQuick2 engine is running

  • The scenario has following components:

    • C++ QAbstractItemModel derived model class created in main thread
    • QML QtQuick2 Engine instantiated in main thread
    • Worker boost::thread spawned from main thread upon user interaction

    The relations between these components:

    • The C++ model is exposed through a Q_PROPERTY of a type registered with qmlRegisterSingletonType<>() to the QML Engine.
    • The worker thread updates the model through a method that invokes "emit data_changed(...)"

    The question: in which thread does the callback of the "emit data_changed(...)" happen?


    A key element in this question is that the started thread is not qt aware.

    This question is also posted here

Log in to reply

Looks like your connection to Qt Forum was lost, please wait while we try to reconnect.