Exposes the raw data buffer at the current _write position,
The delegate is provided with a void[] representing space
available within the buffer at the current _write position.
The delegate should return the appropriate number of bytes
if it writes valid content, or Eof on error.
Write into this buffer.
Exposes the raw data buffer at the current _write position, The delegate is provided with a void[] representing space available within the buffer at the current _write position.
The delegate should return the appropriate number of bytes if it writes valid content, or Eof on error.