extract image from my google map

hello, sorry for asking too many questions but I am blocked and the clock is ticking me

I have a google map inserted in a asp.net page, I filled a dropdownlist, I select an item from the list, I locate on the map, I put a marker, I displays an info window on the map

I need your help to extract the current image of my card and give the user the option to save it

function findAddress() {
    var address = document.getElementById("ddlAdr").value;

    // script uses our 'geocoder' in order to find location by address name
    geocoder.geocode({ 'address': address }, function(results, status) {
        if (status == google.maps.GeocoderStatus.OK) { // and, if everything is ok

            // we will center map
            var addrLocation = results[0].geometry.location;
            map.setCenter(addrLocation);

            // store current coordinates into hidden variables
            document.getElementById('lat').value = results[0].geometry.location.$a;
            document.getElementById('lng').value = results[0].geometry.location.ab;

            // and then - add new custom marker
            var addrMarker = new google.maps.Marker({
            
                position: addrLocation,
                map: map,
                title: results[0].formatted_address
            });
        } else {
            alert('Geocode was not successful for the following reason: ' + status);
        }
    });
}