title: How to use containsLocation() in DrawingManager
body: <pre><code>google.maps.event.addListener(drawingManager, "polygoncomplete", function (polygon) {
           document.getElementById("cordinates").innerHTML = polygon.getPath().getArray(); 
  
            google.maps.event.addListener(polygon.getPath(), "insert_at", function () { document.getElementById("cordinates").innerHTML =polygon.getPath().getArray(); } )
            google.maps.event.addListener(polygon.getPath(), "remove_at", function () { document.getElementById("cordinates").innerHTML =polygon.getPath().getArray(); } )
            google.maps.event.addListener(polygon.getPath(), "set_at", function () { document.getElementById("cordinates").innerHTML = polygon.getPath().getArray(); } )
  </code></pre>
  
  <p>I have that code part, I want to check some points inside of that polygon or not, but I have tried <code>google.maps.geometry.poly.containsLocation(point, polygon)</code>
  that code but I have problem <code>polygon</code>, I do not know how to call that polygon from drawingmanager. I don't know to find polygon's reference from drawingmanager</p>