d>
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<span class="mlabels"><span class="mlabel extern">extern</span></span>  </td>
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<p>Checks if property list contains a specific property. </p><dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">props</td><td>pointer to the property list. </td></tr>
    <tr><td class="paramname">propid</td><td>the property id to check for. </td></tr>
  </table>
  </dd>
</