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<h1><a class="anchor" name="subscribe">Event Subscription </a></h1><h2><a class="anchor" name="overv_sec">
Overview</a></h2>
The application can be notified, asynchronously, whenever the internal layout of the server changes. Possible notifications are described in the <a class="el" href="def_8h.html#6bedfa147a9565383f1f44642cfef6a3">pa_subscription_event_type</a> and <a class="el" href="def_8h.html#d4e7f11f879e8c77ae5289145ecf6947">pa_subscription_mask</a> enumerations.<p>
The application sets the notification mask using <a class="el" href="subscribe_8h.html#be684246fd5cb640b0199bcfe7f801b0" title="Enable event notification.">pa_context_subscribe()</a> and the function that will be called whenever a notification occurs using <a class="el" href="subscribe_8h.html#55281f798863e7b37594d347be7ad98c" title="Set the context specific call back function that is called whenever the state of...">pa_context_set_subscribe_callback()</a>. </div>
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187676b5433787923dfa2cdd6900c6cd
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