ntwain/samples/WinUI3/NoOpStream.cs

using System;
using System.IO;

namespace WinUI3
{
  internal class NoOpStream : Stream
  {
    public override bool CanRead => false;

    public override bool CanSeek => false;

    public override bool CanWrite => true;

    public override long Length => 0;

    public override long Position { get => 0; set { } }

    public override void Flush()
    {
    }

    public override int Read(byte[] buffer, int offset, int count)
    {
      throw new NotImplementedException();
    }

    public override long Seek(long offset, SeekOrigin origin)
    {
      throw new NotImplementedException();
    }

    public override void SetLength(long value)
    {
    }

    public override void Write(byte[] buffer, int offset, int count)
    {
    }
  }
}