How to get a stream from a byte array in a windows8 store app

Question

I have been trying get a stream from a byte array in metro style app using the following code.

InMemoryRandomAccessStream memoryStream = new InMemoryRandomAc         


        

Answer 1

You can also use the BinaryWriter/BinaryReader to read and write from and to byte[] and Streams.

    private Stream ConvertToStream(byte[] raw)
    {
        Stream streamOutput = new MemoryStream();
        using (BinaryWriter writer = new BinaryWriter(streamOutput))
        {
            writer.Write(raw);
        }
        return streamOutput;
    }

Another option is to use built in extension methods as Marc Gravell already mentioned:

    private Stream ConvertToStream(byte[] raw)
    {
        return raw.AsBuffer().AsStream();
    }

The extension methods are commented with [Security Critical] which may indicate a later change. However, after looking around a bit I couldn't find any additional information on the security code comment.