NAME

       SoNodeSensor -

       The SoNodeSensor class detects changes to nodes.

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

SYNOPSIS

       #include <Inventor/sensors/SoNodeSensor.h>

       Inherits SoDataSensor.

   Public Member Functions
       SoNodeSensor (void)
       SoNodeSensor (SoSensorCB *func, void *data)
       virtual ~SoNodeSensor (void)
       void attach (SoNode *node)
       void detach (void)
       SoNode * getAttachedNode (void) const

   Additional Inherited Members

Detailed Description

       The SoNodeSensor class detects changes to nodes.

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

       Any modification to the node's fields will trigger the sensor, as will changes to node's
       children (if any), including if nodes are added or removed as children below the node in
       the subgraph.

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

Constructor & Destructor Documentation

   SoNodeSensor::SoNodeSensor (void)
       Default constructor.

   SoNodeSensor::SoNodeSensor (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()

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

Member Function Documentation

   void SoNodeSensor::attach (SoNode *node)
       Attach sensor to a node. Whenever any data in the node (or its children, if it's an
       SoGroup or SoGroup derived node) changes, the sensor will be triggered and call the
       callback function.

       Attaching a node sensor to a node will not increase the node's reference count (and
       conversely, detach()'ing the node sensor will not decrease the reference count, either).

       When the attached node is deleted, the sensor will be automatically detached().

       See Also:
           detach()

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

       See Also:
           attach()

   SoNode * SoNodeSensor::getAttachedNode (void) const
       Returns a pointer to the node connected to the sensor.

       See Also:
           attach(), detach()

Author

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