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.