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							       SoSFEngine(3IV)

NAME
     SoSFEngine (SoSEngine) - field containing a pointer to a engine

INHERITS FROM
     SoField > SoSField > SoSFEngine

SYNOPSIS
     #include <Inventor_c/fields/SoSFEngine.h>

     typedef SoSFEngine	 SoSEngine

	  Functions from class SoSFEngine:

     SoType		 SoSEngineGetClassTypeId()
     void		 SoSEngineGetTypeId(const SoSEngine *this)
     SoEngine *		 SoSEngineGet(const SoSEngine *this)
     void		 SoSEngineSet(SoSEngine *this, SoEngine * newValue)
     int		 SoSEngineIsEq(const SoSEngine *this, const SoSFEngine
			      *f)
     int		 SoSEngineIsNEq(const SoSEngine *this, const
			      SoSFEngine *f)

	  Functions from class SoField:

     void		 SoSEngineSetIgnored(SoSEngine *this, SbBool ignore)
     SbBool		 SoSEngineIsIgnored(const SoSEngine *this)
     SbBool		 SoSEngineIsDflt(const SoSEngine *this)
     SbBool		 SoSEngineIsOfType(const SoSEngine *this, SoType type)
     SbBool		 SoSEngineSetFromStr(SoSEngine *this, const char
			      *valueString)
     void		 SoSEngineGetIntoStr(SoSEngine *this, SbString
			      *valueString)
     void		 SoSEngineTouch(SoSEngine *this)
     SbBool		 SoSEngineConnFromField(SoSEngine *this, SoField
			      *fromField)
     SbBool		 SoSEngineConnFrom(SoSEngine *this, SoEngineOutput
			      *fromEngine)
     void		 SoSEngineDisconn(SoSEngine *this)
     SbBool		 SoSEngineIsConn(const SoSEngine *this)
     SbBool		 SoSEngineIsConnFromField(const SoSEngine *this)
     SbBool		 SoSEngineGetConnField(const SoSEngine *this, SoField
			      **writingField)
     SbBool		 SoSEngineIsConnFromEngine(const SoSEngine *this)
     SbBool		 SoSEngineGetConnEngine(const SoSEngine *this,
			      SoEngineOutput **engineOutput)
     void		 SoSEngineEnableConn(SoSEngine *this, SbBool flag)
     SbBool		 SoSEngineIsConnEnabled(const SoSEngine *this)
     int		 SoSEngineGetForwardConn(const SoSEngine *this,
			      SoFieldList *list)
     SoFieldContainer *	 SoSEngineGetContainer(const SoSEngine *this)

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SoSFEngine(3IV)

DESCRIPTION
     This field maintains a pointer to an SoEngine instance, correctly
     maintaining its reference count.

     SoSFEngines are written to file as the engine they are pointing to. For
     example:

	  mySoSFEngineField ElapsedTime {}

     is an SoSFEngine field named 'mySoSFEngineField', pointing to an
     SoElapsedTime engine. If the engine is used elsewhere, the regular
     DEF/USE instancing mechanism applies:

	  anotherSoSFEngineField USE calculator

     is an SoSFEngine field that points to a engine named 'calculator' that
     was DEF'ed earlier in the scene.

FUNCTIONS
     SoType		 SoSEngineGetClassTypeId()
     void		 SoSEngineGetTypeId(const SoSEngine *this)
	  Returns the type for this class or a particular object of this
	  class.

     SoEngine *		 SoSEngineGet(const SoSEngine *this)
	  Returns this field's value.

     void		 SoSEngineSet(SoSEngine *this, SoEngine * newValue)
	  Sets this field to newValue.

     int		 SoSEngineIsEq(const SoSEngine *this, const SoSFEngine
			      *f)
     int		 SoSEngineIsNEq(const SoSEngine *this, const
			      SoSFEngine *f)
	  Returns TRUE if f is of the same type and has the same value as this
	  field.

SEE ALSO
     SoField, SoSField, SoMFEngine, SoEngine

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