How to pass ListModel data to C++ function



  • I have a ListModel in QML:

    @
    ListModel{
    id: data
    ListElement
    {
    x: 10
    y: 20
    count: 18
    }
    }

    function draw(){
    ctx.drawIntensityMap(data);
    }

    //********** c++ code

    void Context2D::drawIntensityMap(QVariantList data)
    {
    ....
    }
    @

    The model just gets populated with x,y,count data via javascript. After it gets populated I want to pass it to my c++ function so I can draw a HeatMap with QPainter.
    I can't figure out how to pass the data to my C++ function.

    Would I have to pass it as a QVariantList? If so how would I get to the data in C++.

    Thanks


  • Moderators

    Hi,

    You can iterate and add the model data into an array and pass that array as QVariantList to the C++ function.


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