Stage active event from QML file

[AbinaThomas]

Hi,

I loaded a QML file from QT C++ class using QDeclarativeView object. I want a signal from QML file to CPP after it is active.
My sample code is :

QDeclarativeView *view = new QDeclarativeView();
    view->setSource(QUrl::fromLocalFile("base.qml"));
    Qmlview = view;
    QObject *item =  view->rootObject();
    QObject::connect(item,SIGNAL(qmlSignal(QString)),this,SLOT(cppSlot(QString)));     
    Qmlview->show();

QDeclarativeView *view = new QDeclarativeView();
    view->setSource(QUrl::fromLocalFile("base.qml"));
    Qmlview = view;
    QObject *item =  view->rootObject();
    QObject::connect(item,SIGNAL(qmlSignal(QString)),this,SLOT(cppSlot(QString)));     
    Qmlview->show();

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and in the QML side i wrote:

Rectangle {
    id : item1
    width: 400
    height: 400
    color: "#d5b9b9"
 
    signal qmlSignal(string msg)
    Component.onCompleted:
    {
 
        item1.qmlSignal("string msg")
    }
 
}

Rectangle {
    id : item1
    width: 400
    height: 400
    color: "#d5b9b9"

    signal qmlSignal(string msg)
    Component.onCompleted:
    {
        
        item1.qmlSignal("string msg")
    }
    
}

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but it seems that the signal will emit before the connection handler.
Is there any event in QML which will active after "Qmlview->show();" ?

Thanks in advance...

[wysota]

but it seems that the signal will emit before the connection handler.

How do you know that?

Is there any event in QML which will active after "Qmlview->show();" ?

A showing widget is being sent a showEvent. You can install an event filter to react on it. Or you can use QMetaObject::invokeMethod() with Qt::QueuedConnection to execute code once Qt enters its event loop.