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copied!<p><a href="http://canbilgin.wordpress.com/2012/06/06/how-to-convert-byte-array-to-irandomaccessstream/" rel="nofollow">How to Convert byte Array to IRandomAccessStream</a></p> <p>I've found this blog article, hopefully this realization of <code>IRandomAccessStream</code> can be a starting point for you.</p> <pre><code>class MemoryRandomAccessStream : IRandomAccessStream { private Stream m_InternalStream; public MemoryRandomAccessStream(Stream stream) { this.m_InternalStream = stream; } public MemoryRandomAccessStream(byte[] bytes) { this.m_InternalStream = new MemoryStream(bytes); } public IInputStream GetInputStreamAt(ulong position) { this.m_InternalStream.Seek((long)position, SeekOrigin.Begin); return this.m_InternalStream.AsInputStream(); } public IOutputStream GetOutputStreamAt(ulong position) { this.m_InternalStream.Seek((long)position, SeekOrigin.Begin); return this.m_InternalStream.AsOutputStream(); } public ulong Size { get { return (ulong)this.m_InternalStream.Length; } set { this.m_InternalStream.SetLength((long)value); } } public bool CanRead { get { return true; } } public bool CanWrite { get { return true; } } public IRandomAccessStream CloneStream() { throw new NotSupportedException(); } public ulong Position { get { return (ulong)this.m_InternalStream.Position; } } public void Seek(ulong position) { this.m_InternalStream.Seek((long)position, 0); } public void Dispose() { this.m_InternalStream.Dispose(); } public Windows.Foundation.IAsyncOperationWithProgress<IBuffer, uint> ReadAsync(IBuffer buffer, uint count, InputStreamOptions options) { var inputStream = this.GetInputStreamAt(0); return inputStream.ReadAsync(buffer, count, options); } public Windows.Foundation.IAsyncOperation<bool> FlushAsync() { var outputStream = this.GetOutputStreamAt(0); return outputStream.FlushAsync(); } public Windows.Foundation.IAsyncOperationWithProgress<uint, uint> WriteAsync(IBuffer buffer) { var outputStream = this.GetOutputStreamAt(0); return outputStream.WriteAsync(buffer); } } </code></pre>

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