 successive <b>perform:with:afterDelay:cancelPrevious:</b> messages can repeatedly postpone the <i>aSelector</i> message.</font>

<p><font face="Times">If <i>flag</i> is NO, each <b>perform:with:afterDelay:cancelPrevious:</b> message will cause another delayed <i>aSelector</i> message to be sent.</font>

<p><font face="Times">This method permits you to register an action in response to a user event (such as a click), but delay it in case subsequent events alter the environment in which the action would be p