SoCallbackList(3IV)

NAME
     SoCallbackList - manages a list of callback functions and associated data

INHERITS FROM
     SoCallbackList

SYNOPSIS
     #include <Inventor/misc/SoCallbackList.h>

     typedef void        SoCallbackListCB(void *userData, void *callbackData)

          Methods from class SoCallbackList:

                         SoCallbackList()
                         ~SoCallbackList()
     void                addCallback(SoCallbackListCB *f, void *userData =
                              NULL)
     void                removeCallback(SoCallbackListCB *f, void *userData =
                              NULL)
     void                clearCallbacks()
     int                 getNumCallbacks() const
     void                invokeCallbacks(void *callbackData)


DESCRIPTION
     This class manages a list of callback functions and user data. The user
     can add a callback function to the list, along with user data. When the
     callback is invoked, it is passed this user data, along with callback
     data specified by the invoking routine. The type of this callback data is
     determined by the invoking routine.

METHODS
                         SoCallbackList()
                         ~SoCallbackList()
          Constructor and destructor.

     void                addCallback(SoCallbackListCB *f, void *userData =
                              NULL)
     void                removeCallback(SoCallbackListCB *f, void *userData =
                              NULL)
          Adds a function to or removes a function from the list of callback
          functions.

     void                clearCallbacks()
          Clears all callback functions from the list.

     int                 getNumCallbacks() const
          Returns the number of callback functions in the list.

     void                invokeCallbacks(void *callbackData)
          Invokes each callback function in the list, passing each function
          the user data supplied when they were registered here, and
          callbackData, the callback-specific data supplied by the caller.