Restructured

        and here is the drawimage function:
        private void DrawImage(Image image)
        {
            lock (lockClosing)
            {
                //if (checkBox1.Checked)
                //    MessageBox.Show("lol");
                try
                {
                    if (closing) return;
                    if (InvokeRequired)
                        Invoke((MethodInvoker)delegate
                        {
                            using (Graphics gView = ts.CreateGraphics())
                                gView.DrawImage(image, 0, 0, ts.Width, ts.Height);
                        });
                    else using (Graphics gView = ts.CreateGraphics())
                            gView.DrawImage(image, 0, 0, ts.Width, ts.Height);
                }
                catch (Exception ex)
                {
                    MessageBox.Show("Draw Error: " + ex.Message);
                }
            }
        }


    try
                        {
                            lock (ImgSync)
                            {
                                int type = pr.ReadInt32();

                                    reading the data we send from our client

                                    int x = pr.ReadInt32();
                                    int y = pr.ReadInt32();
                                    int width = pr.ReadInt32();
                                    int height = pr.ReadInt32();

                                    int size = pr.ReadInt32();
                                    byte[] chunk = pr.ReadBytes(size);

                                    data read done..

                                    using (MemoryStream imgMs = new MemoryStream(chunk))
                                    using (Bitmap bmpChunk = (Bitmap)Bitmap.FromStream(imgMs))
                                    using (Graphics screenG = Graphics.FromImage(lastImage))
                                    {
                                        screenG.DrawImage(bmpChunk, x, y, width, height);
                                        DrawImage(lastImage);
                                        DoubleBuffered = true;
                                    }
                                    chunk = null;

                            }
                        }
                        catch (Exception ex)
                        {
                            MessageBox.Show("screen error:" + ex.Message);
                        }