ns">()</td><td class="detailHeaderType">method</td><td class="detailHeaderRule">&nbsp;</td>
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<code>public function requestControlling(p_userID:String = null):void</code><p>
   To be called when the current user would like to begin controlling the screen currently displayed. Note that the publisher of that screen
   needs to accept the request to control before this functionality is activated.
   </p><span class="label">Parameters</span>
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