请教下tcp 如何接收和发送图片

Question

streamToClient，streamToSserver 是NetWorkStream

在服务器端 我是这样发送图片的，在客户端怎么显示图片呢

  Image img = Image.FromFile(@"I:\WinForm\C#\TcpTest\TcpTest\bin\Debug\7.gif");
                System.IO.MemoryStream _ImageMem = new System.IO.MemoryStream();
                img.Save(_ImageMem, ImageFormat.Gif);
                byte[] _ImageBytes = _ImageMem.GetBuffer(); 
                 
               // buffer = Encoding.Unicode.GetBytes(msg);
                lock(streamToClient){
                    streamToClient.Write(_ImageBytes, 0, _ImageBytes.Length);
                }

客户端接收
 int bytesRead;
                        buffer = new byte[BufferSize];                     
                        lock(streamToServer){
                            bytesRead = streamToServer.Read(buffer, 0, BufferSize);
                        }

bytesRead 怎么转化成图片呢？
客户端是asp.net 服务器端是winform

Answer 1

bytesRead 是个 int，能够转换为 Image 的可能性无限接近于零。要转也是用 buff 转

            byte[] bytes = new byte[1024];
            MemoryStream stream = new MemoryStream(bytes);

            Image img = Image.FromStream(stream);

前提是你完整地把这张图片接收下来了

Answer 2

你好，
没错，是将图片转换成Bit数组，这段代码会对你有用

public static byte[] BitmapToBytes(Bitmap Bitmap)
        {
            MemoryStream ms = null;
            try
            {
                ms = new MemoryStream();
                Bitmap.Save(ms, Bitmap.RawFormat);
                byte[] byteImage = new Byte[ms.Length];
                byteImage = ms.ToArray();
                return byteImage;
            }
            catch (ArgumentNullException ex)
            {
                throw ex;
            }
            finally
            {
                ms.Close();
            }
        }

---

微软(黑龙江).Net俱乐部
我们要把爱心传递给更多需要帮助的人。
http://terryfeng.cnblogs.com
http://t.sina.com.cn/terryfeng
http://www.terryfeng.com