n> <span class="parameter-name">data</span></span>)
            <span class="returntype parameter">&#8594; void</span>
          </span>
                  </dt>
        <dd>
          Signature for responses to platform messages. <a href="dart-ui/PlatformMessageResponseCallback.html">[...]</a>
                  
</dd>
        <dt id="PointerDataPacketCallback" class="callable">
          <span class="name"><a href="dart-ui/PointerDataPacketCallback.html">PointerDataPacketCallback</a></span><span class="sign