图片转成byte数组

winform中PictureBox 中的

用方法System.Drawing.Image.Save 报错误

A generic error occurred in GDI+.

解决办法

private byte[] ImageToByte(PictureBox pb)

       {

           //Image image =(Image) pb.Image.Clone();

           Image image =pb.Image;

          // pb.Image.Dispose();

           byte[] b = null;

           try

           {

               Image sceneImage = new Bitmap(image);

               ////实例化流

               System.IO.MemoryStream imageStream = new System.IO.MemoryStream();

               //将图片的实例保存到流中

               sceneImage.Save(imageStream, ImageFormat.Png);

               //保存流的二进制数组

               byte[] imageContent = new Byte[imageStream.Length];

               imageStream.Position = 0;

               //将流泻如数组中

               imageStream.Read(imageContent, 0, (int)imageStream.Length);

               return imageStream.ToArray();

           }

           catch (Exception ex)

           {

               throw;

           }

          // return b;

       }