NAME

       SoFieldSensor -

       The SoFieldSensor class detects changes to a field.

       Attach a field to a sensor of this type to put it under surveillance, so you can act upon
       changes to the field.

SYNOPSIS

       #include <Inventor/sensors/SoFieldSensor.h>

       Inherits SoDataSensor.

   Public Member Functions
       SoFieldSensor (void)
       SoFieldSensor (SoSensorCB *func, void *data)
       virtual ~SoFieldSensor (void)
       void attach (SoField *field)
       void detach (void)
       SoField * getAttachedField (void) const
       virtual void trigger (void)

   Additional Inherited Members

Detailed Description

       The SoFieldSensor class detects changes to a field.

       Attach a field to a sensor of this type to put it under surveillance, so you can act upon
       changes to the field.

       An SoFieldSensor can also act for delete-callback purposes alone and does not need a
       regular notification-based callback.

Constructor & Destructor Documentation

   SoFieldSensor::SoFieldSensor (void)
       Constructor.

   SoFieldSensor::SoFieldSensor (SoSensorCB *func, void *data)
       Constructor taking as parameters the sensor callback function and the userdata which will
       be passed the callback.

       See Also:
           setFunction(), setData()

   SoFieldSensor::~SoFieldSensor (void) [virtual]
       Destructor.

Member Function Documentation

   void SoFieldSensor::attach (SoField *field)
       Attach sensor to a field. Whenever the field's value changes, the sensor will be triggered
       and call the callback function.

       A field sensor can be attached to only a single field at a time. When this method is
       invoked multiple times, each subsequent call will replace the field the sensor is
       monitoring with the new field.

       When the given field is deleted, the sensor will automatically be detached.

       See Also:
           detach()

   void SoFieldSensor::detach (void)
       Detach sensor from field. As long as an SoFieldSensor is detached, it will never call its
       callback function.

       See Also:
           attach()

   SoField * SoFieldSensor::getAttachedField (void) const
       Returns a pointer to the field connected to the sensor.

       See Also:
           attach(), detach()

   void SoFieldSensor::trigger (void) [virtual]
       Trigger the sensor's callback function.

       Reimplemented from SoDataSensor.

Author

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