CocosSharp Issue

IntroLayer.cs

using System;
using System.Collections.Generic;
using CocosSharp;
using Microsoft.Xna.Framework;
using System.IO;
using Windows.Storage.Streams;
using Windows.Storage;
using Windows.Graphics.Imaging;
using Windows.ApplicationModel.DataTransfer;
using Windows.Foundation;

namespace CocosSharpGame1
{
    public class IntroLayer : CCLayerColor
    {
        
        private CCPoint positionBegin;
        private StorageFile currentShareFile1;

        public IntroLayer() : base(CCColor4B.Blue)
        {

            // create and initialize a Label
            
            for (int i = 0; i < 20; i++)
            {
                CCLabel label = new CCLabel("Line " + 1, "Helvetica", 22, CCLabelFormat.SystemFont);
                label.Color = CCColor3B.White;
                //CCLabel label = new CCLabel("Line " + 1, "fonts/MarkerFelt", 22, CCLabelFormat.SpriteFont);
                label.Position = new CCPoint(i * 30, i * 30);
                AddChild(label);
            }

            // Register for touch events
            var touchListener = new CCEventListenerTouchAllAtOnce();
            touchListener.OnTouchesBegan = OnTouchesBegin;
            touchListener.OnTouchesMoved = OnTouchesMoved;
            touchListener.OnTouchesEnded = OnTouchesEnded;
            AddEventListener(touchListener, this);


            DataTransferManager dataTransferManager = DataTransferManager.GetForCurrentView();
            dataTransferManager.DataRequested += new TypedEventHandler<DataTransferManager, DataRequestedEventArgs>(this.ShareTextHandler);

        }

        private async void OnTouchesEnded(List<CCTouch> arg1, CCEvent arg2)
        {
            CCRenderTexture renTxture = new CCRenderTexture(Window.WindowSizeInPixels, Window.WindowSizeInPixels, CCSurfaceFormat.Color, CCDepthFormat.None, CCRenderTargetUsage.PreserveContents);
            renTxture.BeginWithClear(new CCColor4F(CCColor3B.White));
            Visit();
            renTxture.End();


            MemoryStream ms = new MemoryStream();
            renTxture.SaveToStream(ms, CCImageFormat.Jpg);

            var file = await ApplicationData.Current.TemporaryFolder.CreateFileAsync("Test.jpg", CreationCollisionOption.GenerateUniqueName);
            using (IRandomAccessStream stream = await file.OpenAsync(FileAccessMode.ReadWrite))
            {

                byte[] data = ms.ToArray();

                using (IOutputStream outputStream = stream.GetOutputStreamAt(0))
                {
                    using (DataWriter dataWriter = new DataWriter(outputStream))
                    {
                        dataWriter.WriteBytes(data);
                        await dataWriter.StoreAsync();
                        dataWriter.DetachStream();
                        await outputStream.FlushAsync();
                        outputStream.Dispose();
                        stream.Dispose();
                    }
                }
            }

            currentShareFile1 = file;
            DataTransferManager.ShowShareUI();
        }

        private void OnTouchesBegin(List<CCTouch> touches, CCEvent touchEvent)
        {
            this.positionBegin = touches[0].LocationOnScreen;
        }

        private void OnTouchesMoved(List<CCTouch> touches, CCEvent touchEvent)
        {
            float newPosX = Position.X + (touches[0].LocationOnScreen.X - positionBegin.X)/3.0f;

            Position = new CCPoint(newPosX, Position.Y);
        }


        private void ShareTextHandler(DataTransferManager sender, DataRequestedEventArgs e)
        {
            DataRequest request = e.Request;

            // The Title is mandatory
            request.Data.Properties.Title = "Share";
            List<StorageFile> files = new List<StorageFile>();
            files.Add(currentShareFile1);
            request.Data.SetStorageItems(files);

            // Now add the data you want to share.
        }

    }
}