55#include <Inventor/fields/SoSubField.h>
104 static void initClass();
105 static void exitClass();
108 virtual void fixCopy(
SbBool copyConnections);
111 virtual SbBool referencesCopy()
const;
115 virtual void countWriteRefs(
SoOutput *out)
const;
Base class for all engines.
Used to write Open Inventor data files.
Field containing an engine instance.
Abstract base class for all single-value fields.