I'm building a Qt app with Python where you can point and click at a (google) map and get the coordinates of the location. The map is shown through a QWebView loading a simple HTML page and the user can create markers by clicking. Screenshot of the widget after clicking on the map:

However, I'm having trouble to retrieve the just-clicked location coordinates back to Qt (so that I can use them as variables -- and, for example, show them in the QLineEdits on the topleft corner above, as current location of the marker).

This is the relevant part of the HTML file:

<script type="text/javascript">
var map;
function initialize() { 
    var local = new google.maps.LatLng(-23.4,-40.3);
    var myOptions = {
        zoom: 5,
        center: local,
        mapTypeId: google.maps.MapTypeId.ROADMAP
    } 
    map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);

    google.maps.event.addListener(map, 'rightclick', function(event) {
        placeMarker(event.latLng);
    });
}

function placeMarker(location) {
    var clickedLocation = new google.maps.LatLng(location);
    var marker = new google.maps.Marker({
        position: location,
        map: map
    });

    map.setCenter(location);
}

function dummyTxt() {
    return 'This works.';
}
</script>

I've been trying with evaluateJavaScript, but was not able to retrieve the coordinates. I tried to created a function to access the position with marker.getPosition(), but with no luck. The dummy below works though..

newplace = QWebView.page().mainFrame().evaluateJavaScript(QString('dummyTxt()'))

>>> print newplace.toString()
This works.

Any suggestions on how to get the coordinates back to Qt?