QQmlComponent initialization from C++

[Kwan]

i have an application which sets properties of Qml from C++, so far i was able to set property of any type. I am able to create QQmlComponent in C++ and set it to property.

But first i need to initialize component with its properties. I can do that with create/beginCreate and set properties. But i cant change created QObject back to QQmlComponent, therefor i cant set it to givent Component type property.

Is there some way how to conver QObject to QQmlComponent ? Or is there any other way to initialize QQmlComponent properties ?

Example, of what i want to achiev in C++, how it looks in qml

import QtQuick 2.3

Loader {
    // property of type Component
    sourceComponent: Text {
    
        text: "property i want to intialize, this component can be in file"
    }
}

[Mike Neuhaus]

@Kwan said in QQmlComponent initialization from C++:

QQmlComponent

Not entirely sure if I understood you correctly, but take a look at subclassing QQmlParserStatus for your custom QObject (see: https://doc.qt.io/qt-5/qqmlparserstatus.html). You must implement both methods, but the one you are looking for should be "classBegin".

[fcarney]

dynamic_cast

[GrecKo]

@Kwan said in QQmlComponent initialization from C++:

i have an application which sets properties of Qml from C++

That smells bad but ok.

How are you creating your QQmlComponent? With urls/filename or bytearray data or in an other way?
Anyway you could subclass QQmlComponent::beginCreate and set your properties there I believe.