Connect C++ signal to QML slot

Question

I'm trying to connect a C++ signal with a QML slot.

The C++ signal is called userRegistered() and the QML slot is called userRegisteredQML().

In the C++ file, I have the following:

QQuickView view(QUrl::fromLocalFile("interface.qml"));

QObject *topLevel = view.rootContext();

connect(myClass, SIGNAL(userRegistered()), topLevel, SLOT(userRegisteredQML()));

And in the interface.qml, I have the slot userRegisteredQML:

function userRegisteredQML(){
    console.log("this is a test!");
}

The problem is that it does not show "this a test!". Therefore, I wanted to ask you if this is the proper way to connect a C++ signal to a QML slot.

Answer 1

Expose your object to QML in C++:

topLevel->setContextProperty("myClass", myClass);

In QML, you can use Connections:

Connections {
    target: myClass 
    userRegistered: {
        // do something with it here
    }
}