LibRaw_abstract_datastream"></a></p>
    <h3>class LibRaw_abstract_datastream - abstract RAW read interface</h3>
    <p>LibRaw reads RAW-data by calling (virtual) methods of C++ object derived
      from <strong>LibRaw_abstract_datastream</strong>. This C++ class does not
      implement any read, but defines interface to be called. Call to base class
      methods always results in error.</p>
    <p><a name="datastream_methods"></a></p>
    <h4>LibRaw_abstract_datastream class methods</h4>
    <p><a name="