Connect to signals in nested objects

Michael K

Hi together,

I do have a nested QObject structure whereas the objects (classes) are written in C++.

It's like the following

class InnerClass : public QObject {
    Q_OBJECT
public:
    Q_INVOKABLE void doSomething(); // emits somethingDone()
signals:
    void somethingDone();
}

class OuterClass : public QObject {
    Q_OBJECT
    Q_PROPERTY(InnerObject* innerObject READ getInnerObject CONSTANT)
public:
    InnerClass *getInnerObject();
    ....
}

Then, in my QML file I instanciate an OuterClass object.

OuterClass {
    id: outerObject
}
function mySomethingDone() {
    console.log("foobar called")
}
Component.onComplete: outerObject.innerObject.somethingDone.connect(mySomethingDone)

But now, when the somethingDone signal of the InnerClass instance gets emitted I don't receive anything in my QML code. When I connect to this signal via C++ code, my slot does receive the signal.

Does Qt have a limitation here with nested (C++) objects and QML?
I'm using Qt 5.9.1

Best, Michael

Michael K

Okay, the problem was of other origin.

SGaist

Hi and welcome to devnet,

What was that origin ?