socallbacklist(3)

NAME

SoCallbackList

#include <Inventor/lists/SoCallbackList.h>

The SoCallbackList is a container for callback function pointers.

This list stores callback function pointers (along with user-specified extra data to pass to the callbacks) and provides a method for
triggering the callback functions.
Public Member Functions: SoCallbackList (void)
~SoCallbackList ()
void addCallback (SoCallbackListCB *f, void *userData=NULL) void removeCallback (SoCallbackListCB *f, void *userdata=NULL) void clearCallbacks (void)
int getNumCallbacks (void) const
void invokeCallbacks (void *callbackdata)

void SoCallbackList::addCallback (SoCallbackListCB * f, void * userdata =: NULL)
Append the callback function f to the list. It will be passed the
userdata upon invocation.; References SbPList::append().
void SoCallbackList::removeCallback (SoCallbackListCB * f, void * userdata: = NULL)
Remove callback f from the list.; References getNumCallbacks(), SoDebugError::post(), and
SbPList::remove().
void SoCallbackList::clearCallbacks (void): Remove all callbacks in the list.; References SbPList::truncate().
int SoCallbackList::getNumCallbacks (void) const: Returns number of callback functions.; References SbPList::getLength().; Referenced by removeCallback().
void SoCallbackList::invokeCallbacks (void * callbackdata): Invoke all callback functions, passing the userdata and the
callbackdata as the first and second argument, respectively.; All callbacks registered when the method is invoked will be triggered, even though if the code in one callback removes another callback.; It is safe for a callback to remove itself or any other callbacks
during execution.; References SbPList::getLength().; Referenced by SoSelection::addPath().

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