PDA中数据流与图片转换

//得到数据流

 FileStream fs = new FileStream(openFileDialog1.FileName, FileMode.Open);
               int filelength = 0;
               filelength = (int)fs.Length;
               Byte[] fl = new Byte[filelength];
               fs.Read(fl, 0, filelength);

 

//将数据流转换成Image 
               MemoryStream ms = new MemoryStream(fl);
               Image P = Image.FromHbitmap(new Bitmap(ms).GetHbitmap());
               ms.Close();

 

 

public static class BitmapHelper
    {
        public static Bitmap BytesToBitmap(byte[] Bytes)
        {
            MemoryStream stream = null;
            try
            {
                stream = new MemoryStream(Bytes);
                return new Bitmap((Image)new Bitmap(stream));
            }
            catch (ArgumentNullException ex)
            {
                throw ex;
            }
            catch (ArgumentException ex)
            {
                throw ex;
            }
            finally
            {
                stream.Close();
            }
        }

        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();
            }
        }
    }