            </p>
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                  <p>
                    <a class="link" href="is_open.html" title="windows::basic_handle::is_open"><span class="bold"><strong>is_open</strong></span></a>
                  </p>
                </td>
<td>
                  <p>
                    Determine whether the handle is open.
                  </p>
                </td>
</tr>
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<td>
                  <p>
                    <a class="link" href="lowest_layer.html" title="wind