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.

                                                                                           SoCallbackList(3IV)()