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Editorial Team
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Asked: 2026-05-22T23:52:07+00:00

EDIT 4 All this while I was thinking that it is the markers problem,

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EDIT 4

All this while I was thinking that it is the markers problem, that they do not get dragged!
Now I have realized, that NO mouse click works on the map when it is displayed in Qt widget.

The following code, I pasted in an HTML file and opened through Firefox, this worked flawlessly! and the same doesn’t respond when I click on the map on QtWidget :rolleyes:

Can anyone confirm this for me or tell me what wrong I am doing?

Google Maps JavaScript API Example 

<script type="text/javascript"> 

var map;    
var latlng            = new google.maps.LatLng (34.7607233, -117.0107599);

var directionsDisplay = new google.maps.DirectionsRenderer ();;
var directionsService = new google.maps.DirectionsService ();

var pointsArray       = new Array();
var arrayToBeReturned = new Array();

function initialize ()
{
    var myOptions = 
    {
        zoom:8,
        center:latlng,
        mapTypeId:google.maps.MapTypeId.ROADMAP
    };

    map = new google.maps.Map (document.getElementById ("map"), myOptions);
    directionsDisplay.setMap (map); 

    google.maps.event.addListener (map, "click", function ()
                        {
                            alert("You clicked the map.");
                        });
    }

</script> 
</head>
<body onload="initialize()" topmargin="0" leftmargin="0">
<div id="map" style="width: 341px; height: 271px"></div>
<div id="directionsPanel" style="float:right;width:30%;height 100%"></div>
</body>
</html>
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1 Answer

  1. Editorial Team

    Found the solution:

    Add this class in the source file where you are “loading” the HTML file (containing Javascript API) in the Qt widget.

    class myWebPage : public QWebPage
{
    virtual QString userAgentForUrl(const QUrl& url) const {
        return "Chrome/1.0";
    }
};

    Then in your own class in the same source file, add the setPage function call as shown below and see the magic happen!

    MainScreen::MainScreen(QWidget *parent):QWidget(parent)
{
        ...
    ***map->setPage (new myWebPage());***
    map->load (QUrl("./index.html") ) ;
};
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