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)()