Question

I am trying to convert a byte[] to Bitmap in c#. Following is the code:

MemoryStream ms = new MemoryStream(b);
Bitmap bmp = new Bitmap(ms);

It shows the error Parameter is not valid when creating the Bitmap.

byte[] b is coming from a network stream.

But when I write this byte[] to a file, and open this file in any image viewer just works perfectly. Following is code for writing the byte[] to file:

 var fs = new BinaryWriter(new FileStream("tmp.bmp", FileMode.Create, FileAccess.Write));
 fs.Write(b);
 fs.Close();

What am I missing here?

EDIT

Here is my full code that was causing problem

 Socket s = listener.AcceptSocket();
 byte[] b = new byte[imgLen];
 s.Receive(b);
 MemoryStream ms = new MemoryStream(b);
 // now here I am using ms.Seek(0, SeekOrigin.Begin); that fixed my problem.
 Bitmap bmp = new Bitmap(ms);
 pictureBox1.Image = bmp;
 s.Close();

I am using this code on Form_Load event and there is nothing extra. I am just trying to display an Image that is streamed on network. The server is written in Java that is streaming this image.

Hope it clarifies the doubts.

Thanks

Answer 1

Try resetting current location in the stream

MemoryStream ms = new MemoryStream(b);
ms.Seek(0, SeekOrigin.Begin);
Bitmap bmp = new Bitmap(ms);