ChartView pointer from QML to C++

Vasiliy

Hi,

my system:
Ubuntu 16.04
Qt 5.7.0
QtCreator 4.0.2

There is example in QtCreator (on the "Welcome->Examples" tab link): "Qml Oscilloscope". In the example shown how to glue QML and C++:
QML use Timer and periodically request data update from c++ (see file ""ScopeView.qml line #85):

    Timer {
        id: refreshTimer
        interval: 1 / 60 * 1000 // 60 Hz
        running: true
        repeat: true
        onTriggered: {
            dataSource.update(chartView.series(0));
            dataSource.update(chartView.series(1));
        }

an argumet of the 'update' function is pointer to QML's data series.

I've implemented my code based on the example and successfully can pass a series to my c++ code too. But when I try pass ChartView in reimplemented 'update' function I always get '0 pointer' (reimplemented function)
hpp

public: Q_SLOT update(QChartView *chart);

cpp:

void DataSource::update(QChartView *chart){
qDebug()<<chart; // <---- Always NULL
...
}

So my question is:

How to pass pointer on QML's ChartView ( QtQuick 2.0, QtCharts 2.1) to my C++?

Thanks a lot for any idea!

Eluvatar

@Vasiliy I'm also having this issue in windows, did you ever find a solution?