Retrieve selected point coordinates

Hello,

I am a novice in OCC. Probably, it is a simple question.

I made a point with

void GLWidget::getPoint(QList<double> (pointList))
{
    pointGList = pointList;

    for (int i=0; i<pointGList.count()-2; i=i+3)
    {
        gp_Pnt point (pointGList.at(i),pointGList.at(i+1),pointGList.at(i+2));
        TopoDS_Vertex V1 = BRepBuilderAPI_MakeVertex(point);
        Handle(AIS_Shape) aShape = new AIS_Shape(V1);
        Quantity_Color color(Quantity_NOC_RED);
        Handle_Prs3d_PointAspect myPointAspect=new Prs3d_PointAspect(Aspect_TOM_O,color,1);
        aShape->Attributes()->SetPointAspect(myPointAspect);
        getContext()->Display(aShape, Standard_True);
    }
}

I put in the selection the following code copied from forum:

void GLWidget::inputEvent(const int x, const int y)
{
    Q_UNUSED(x);
    Q_UNUSED(y);

    myContext->Select(Standard_True);

    emit selectionChanged();

    Handle(AIS_InteractiveObject) picked;
    myContext->InitSelected();
    picked = myContext->SelectedInteractive();
    Handle(AIS_Shape) aShape=Handle(AIS_Shape)::DownCast(picked);

    TopoDS_Shape topShape = aShape->Shape();
    TopExp_Explorer vertEx(topShape, TopAbs_VERTEX);
    TopoDS_Vertex aVertex=TopoDS::Vertex(vertEx.Current());

    gp_Pnt point = BRep_Tool::Pnt(aVertex);
    gp_Pnt P = BRep_Tool::Pnt(aVertex);

    qDebug() << "check";
}

So, how to get the coordinates of selected point: X, Y, Z?