     <span class="signature">&#8596; <a href="../dart-ui/SemanticsActionCallback.html">SemanticsActionCallback</a></span>         
        </dt>
        <dd>
          A callback that is invoked whenever the user requests an action to be
performed. <a href="../dart-ui/Window/onSemanticsAction.html">[...]</a>
                  <div class="features">read / write</div>
</dd>
        <dt id="onSemanticsEnabledChanged" class="property">
          <span class="name"><a href="../dart-ui/Window/onSemanticsEnabledCh