[Development] How to deal with C++ Interfaces in Qml?

[c64zottel .]

Hello,

I am trying to figure out how to pass objects derived from a pure virtual
class and encountered several issues (I guess):

There are 2 classes derived from InputDeviceConfiguratorGate:
JoystickDeviceConfigurator and KeyboardDeviceConfigurator.
If I try to register them like:
qmlRegisterUncreatableType<JoystickDeviceConfigurator>(
"JoystickDeviceConfigurator", 1, 0, "JoystickDeviceConfigurator", "Not
creatable in Qml." );
qmlRegisterUncreatableType<KeyboardDeviceConfigurator>(
"KeyboardDeviceConfigurator", 1, 0, "KeyboardDeviceConfigurator", "Not
creatable in Qml." );

Then Qml throws:

QMetaType::registerTypedef: -- Type name 'InputDeviceConfiguratorGate*'
previously registered as typedef of 'JoystickDeviceConfigurator*' [1049],
now registering as typedef of 'KeyboardDeviceConfigurator*' [1052].


If I to use

qmlRegisterInterface<InputDeviceConfiguratorGate>(
"InputDeviceConfiguratorGate" );


Then I can't use the actual interface in Qml. (I can? How?)



I already asked on the qt forum:

https://forum.qt.io/topic/79589/how-to-use-a-virtual-interface-in-qml-with-qmlregisterinterface

https://forum.qt.io/topic/79691/how-to-use-a-specialization-of-an-c-interface


to find out someone else opened the topic 2 years ago:

https://forum.qt.io/topic/54387/how-do-you-use-c-interfaces-pure-virtual-class-in-qml



Thanks for your time.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.qt-project.org/pipermail/development/attachments/20170528/419ef660/attachment.html>