an>         
        </dt>
        <dd>
          How the pointer has changed since the last report.
        </dd>
        <dt id="PointerDeviceKind">
          <span class="name "><a href="dart-ui/PointerDeviceKind-class.html">PointerDeviceKind</a></span>         
        </dt>
        <dd>
          The kind of pointer device.
        </dd>
        <dt id="PointerSignalKind">
          <span class="name "><a href="dart-ui/PointerSignalKind-class.html">PointerSignalKind</a></span>         
        </dt>
  