Google Maps V3 - how to fire a callback function from gmap

Question

I want to map a location, fill it's adress into an input field and add a marker.

Currently I have this, which works:

var home = new google.maps.LatLng(49.93547768118736, 11.2954580783844);
$('#map_canvas_1').gmap({'center': home, 'zoom':17 });
$('#map_canvas_1').gmap('addMarker', { 'position': home, 'animation' : google.maps.Animation.DROP } );
$('#map_canvas_1').gmap('search', { 'location': home }, function (results, status) {
    $('#to').val(results[0].formatted_address);
    });

What I'm wondering is why I cannot use a callback function to fill the input field like so:

$('#map_canvas_1').gmap({'center': home, 'zoom':17, 'callback': function() {
    $('#map_canvas_1').gmap('search', { 'location': home }, function (results, status) {
        $('#to').val(results[0].formatted_address);
   });
} });

As a matter of fact, not even this works:

$('#map_canvas_1').gmap({'center': home, 'zoom':17, 'callback': function() {
    alert ("callback"); 
} });

Can somebody tell me what I'm doing wrong?

Answer 1

There is no property 'callback' in MapOptions, so you cannot set it.