IReadStream インターフェイス

class ReadStream : IReadStream
{
 private MemoryStream fileBytes = null;
 public ReadStream( byte[] _fileBytes )
 {
  fileBytes = new MemoryStream( _fileBytes );
 }
 public void Close()
 {
  fileBytes.Close();
 }
 public int Read( out byte[] data, int count )
 {
  data = new byte[count];
  int readBytes = fileBytes.Read( data, 0, count );
  return readBytes;
 }
}