private void ButConnect_Click(object sender, RoutedEventArgs e)
        {
            try
            {
                CameraServiceClient client = new CameraServiceClient();
                var base64String = client.TakePhotoAsBase64String(20, 200, 200, 0);

                byte[] byteBuffer = Convert.FromBase64String(base64String);
               
                MemoryStream memoryStream = new MemoryStream(byteBuffer);

                memoryStream.Position = 0;
               
                imgPreview.BeginInit();
                imgPreview.Source = BitmapFrame.Create(memoryStream,
                                       BitmapCreateOptions.None,
                                       BitmapCacheOption.OnLoad); ;
                imgPreview.EndInit();
                memoryStream.Close();
                //memoryStream = null;
                //byteBuffer = null;
            }
            catch (Exception exception)
            {
                MessageBox.Show(exception.Message);
            }
        }