/// <summary>
 /// Bubbles up the face API event via the behaviour.
 /// </summary>
 /// <param name="sender"></param>
 /// <param name="result"></param>
 private void _faceAPI_OnDetect(object sender, FaceAPIEventArgs args)
 {
     if (Verbose)
     {
         Debug.LogFormat("Result: {0} faces detected. {1}", args.FacesDetected.Count, Time.timeSinceLevelLoad);
     }
     if (OnDetect != null)
     {
         OnDetect(sender, args);
     }
 }
        public IEnumerator Detect(Texture2D texture)
        {
            // Get the PNG
            var data = texture.EncodeToPNG();

            // No query customisations yet, but in the future the query string can be
            // formatted here
            var queryString = String.Format(FaceStrings.QUERY_STRING_FORMAT_DETECT,
                                            true, true, FaceStrings.PARAMETER_STRING_FACE_ATTRIBUTES);
            var requestUrl = FaceStrings.URL_DETECT + queryString;

            if (Verbose)
            {
                Debug.LogFormat("Detect URL {0}.", requestUrl);
            }

            // Add the headers
            Dictionary <string, string> headers = new Dictionary <string, string>();

            headers.Add(CognitiveStrings.HEADER_OCP_APIM_SUBSCRIPTION_KEY, APIKey);
            headers.Add(CognitiveStrings.HEADER_CONTENT_TYPE, CognitiveStrings.CONTENT_TYPE_OCTET_STREAM);

            // The fantastic Unity WWW request
            var client = new WWW(requestUrl, data, headers);

            yield return(client);

            // Dump the response for now
            if (Verbose)
            {
                Debug.LogFormat("Detect Response {0}.", client.text);
            }

            var facesDetected = JsonConvert.DeserializeObject <List <DetectResponse.RootObject> >(client.text);

            var args = new FaceAPIEventArgs
            {
                FacesDetected = facesDetected,
                OriginalImage = texture
            };

            if (OnDetect != null)
            {
                OnDetect(this, args);
            }
        }