

<td><font face="Helvetica" size="+1"><b>Class Description</b></font></td></tr>

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<td><font face="Times">NSNotification is an abstract class that defines the public interface for notification objects (hereafter, simply referred to as <i>notifications</i>). Objects post notifications to the Notification Center to notify their observers (other objects) that a specific condition has occurred. Notifications encapsulate the