SoFieldSensor Class Reference
Sensor Classes

The SoFieldSensor class detects changes to a field. More...

`#include <Inventor/sensors/SoFieldSensor.h>`

Inheritance diagram for SoFieldSensor:

## 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)
Public Member Functions inherited from SoDataSensor
| SoDataSensor (void)
| SoDataSensor (SoSensorCB *func, void *data)
virtual | ~SoDataSensor (void)
void | setDeleteCallback (SoSensorCB *function, void *data=NULL)
SoNode * | getTriggerNode (void) const
SoField * | getTriggerField (void) const
SoPath * | getTriggerPath (void) const
void | setTriggerPathFlag (SbBool flag)
SbBool | getTriggerPathFlag (void) const
SoNotRec::OperationType | getTriggerOperationType (void) const
int | getTriggerIndex (void) const
int | getTriggerFieldNumIndices (void) const
SoNode * | getTriggerGroupChild (void) const
SoNode * | getTriggerReplacedGroupChild (void) const
Public Member Functions inherited from SoDelayQueueSensor
| SoDelayQueueSensor (void)
| SoDelayQueueSensor (SoSensorCB *func, void *data)
virtual | ~SoDelayQueueSensor (void)
void | setPriority (uint32_t pri)
uint32_t | getPriority (void) const
virtual void | schedule (void)
virtual void | unschedule (void)
virtual SbBool | isScheduled (void) const
virtual SbBool | isIdleOnly (void) const
Public Member Functions inherited from SoSensor
| SoSensor (void)
| SoSensor (SoSensorCB *func, void *data)
virtual | ~SoSensor (void)
void | setFunction (SoSensorCB *callbackfunction)
SoSensorCBPtr | getFunction (void) const
void | setData (void *callbackdata)
void * | getData (void) const
void | setNextInQueue (SoSensor *next)
SoSensor * | getNextInQueue (void) const

## Additional Inherited Members

Static Public Member Functions inherited from SoDelayQueueSensor
static uint32_t | getDefaultPriority (void)
Static Public Member Functions inherited from SoSensor
static void | initClass (void)
Protected Member Functions inherited from SoDataSensor
void | invokeDeleteCallback (void)
Protected Attributes inherited from SoDelayQueueSensor
SbBool | scheduled
Protected Attributes inherited from SoSensor
SoSensorCB * | func
void * | funcData

## 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() [1/2]

SoFieldSensor::SoFieldSensor | ( | void |  | ) |

Constructor.

## SoFieldSensor() [2/2]

SoFieldSensor::SoFieldSensor | ( | SoSensorCB * | func,
|  | void * | data )

Constructor taking as parameters the sensor callback function and the userdata which will be passed to the callback.

See also
  setFunction(), setData()

## ~SoFieldSensor()

SoFieldSensor::~SoFieldSensor | ( | void |  | ) |

virtual

Destructor.

## Member Function Documentation

## attach()

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()

## 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()

## getAttachedField()

SoField * SoFieldSensor::getAttachedField | ( | void |  | ) | const

Returns a pointer to the field connected to the sensor.

See also
  attach(), detach()

## trigger()

void SoFieldSensor::trigger | ( | void |  | ) |

virtual

Trigger the sensor's callback function.

Reimplemented from SoDataSensor.

The documentation for this class was generated from the following files:

- SoFieldSensor.h
- SoFieldSensor.cpp