I find it easier the other way ;-) whereever it is possible, I'm using QObject* for my data there's a special C++ DataManager class with Q_INVOKABLE methods to create / delete / .... and this class always is the parent of my QObject*
it's cool - there's no by-value copying between C++ and QML and I'm getting code-completion in QML on all the Q_PROPERTY and I'm always using the same objects, so it's easy to call a C++ utility using the QObject* or exposing the QObject* to QML the nice thing: my datamodel is defined using a custom DSL based on (Eclipse) XText and XTend and all the C++ code for my Entities and the DataManager is generated from this model. hopefully some day I'll find the time to publish this generator as OpenSource ekke Am 01.03.19 um 16:12 schrieb Jason H: > Check out qtmultimedia/examples/multimedia/video/qmlvideofilter_opencl > fo the filter result types. I think that's what you want? > > I find it easier to code and work with to just rely on QVariant > conversion. QVariantList and QVariantMap are transparently converted > to JS Objects. > > *Sent:* Friday, March 01, 2019 at 6:43 AM > *From:* "Sylvain Pointeau" <sylvain.point...@gmail.com> > *To:* "Qt Project" <interest@qt-project.org> > *Subject:* [Interest] using a custom class as parameter of > signal/slot, used in QML > Dear all, > > I understood how to use a struct / simple class as a parameter of a > signal / slot, and it works well by value. > > However as soon as we have to declare the type for QML, it is not good > anymore. > It seems that it must be derived from QObject and passed by pointer. > > Do I understand well that the QML world does only accept pointers on > QObject? > > However I don't understand, who owns the pointer of the custom class > (derived from QObject) and who actually deletes it? > (I tried a sharepointer but QML does not know how to handle it) > > Do you have any idea? > > Best regards, > Sylvain > > > _______________________________________________ Interest mailing list > Interest@qt-project.org https://lists.qt-project.org/listinfo/interest > > _______________________________________________ > Interest mailing list > Interest@qt-project.org > https://lists.qt-project.org/listinfo/interest
_______________________________________________ Interest mailing list Interest@qt-project.org https://lists.qt-project.org/listinfo/interest
