<div class="content" name="IGetTrackingData" uuid="9e2fec73-b90a-4fb6-8da1-e029fb3b38f8"><p>The IGetTrackingData interface provides methods for a client
to poll for tracking information. This interface inherits from IUnknown, as
specified in <a href="../ms-dcom/4a893f3d-bd29-48cd-9f43-d9777a4415b0" data-linktype="relative-path">[MS-DCOM]</a>
section <a href="../ms-dcom/2b4db106-fb79-4a67-b45f-63654f19c54c" data-linktype="relative-path">3.1.1.5.8</a>.
The version for this interface is 0.0.</p><p>To receive incoming remote calls for this interface, the
server MUST implement a DCOM object class with the <a href="e6e3f493-e460-4df6-95a1-74ff12ea822d#gt_e433c806-6cb6-46a2-bb95-523df8818c99" data-linktype="relative-path">CLSID</a> CLSID_TrackerService
(as specified in section <a href="7b6d157b-8158-4041-a1b8-186b43a2422c" data-linktype="relative-path">1.9</a>)
by using the <a href="e6e3f493-e460-4df6-95a1-74ff12ea822d#gt_c4813fc3-b2e5-4aa3-bde7-421d950d68d3" data-linktype="relative-path">UUID</a>
{B60040E0-BCF3-11D1-861D-0080C729264D} for this interface.</p><p>The IGetTrackingData interface includes the following
methods beyond those of IUnknown.</p><p>Methods in RPC Opnum Order</p><table><thead>
  <tr>
   <th>
   <p>Method</p>
   </th>
   <th>
   <p>Description</p>
   </th>
  </tr>
 </thead><tbody><tr>
  <td>Opnum3NotUsedOnWire</td>
  <td>Reserved for local use. Opnum: 3</td>
 </tr><tr>
  <td>GetContainerData</td>
  <td>Returns tracking information for instance containers. Opnum: 4</td>
 </tr><tr>
  <td>GetComponentDataByContainer</td>
  <td>Returns tracking information for components by instance container. Opnum: 5</td>
 </tr><tr>
  <td>GetComponentDataByContainerAndCLSID</td>
  <td>Returns tracking information for a component by instance container and CLSID. Opnum: 6</td>
 </tr><tr>
  <td>Opnum7NotUsedOnWire</td>
  <td>Reserved for local use. Opnum: 7</td>
 </tr></tbody></table><p>In the preceding table, the phrase &#34;Reserved for local
use&#34; means that the client MUST NOT send the <a href="e6e3f493-e460-4df6-95a1-74ff12ea822d#gt_e127848e-c66d-427d-b3aa-9f904fa4ada7" data-linktype="relative-path">opnum</a> and that the server
behavior is undefined<a id="Appendix_A_Target_19"></a><a aria-label="Product behavior note 19" href="8a5428f5-1574-4b06-9c20-5963b11e9035#Appendix_A_19" data-linktype="relative-path">&lt;19&gt;</a> because it does not affect
interoperability.</p><p>All methods MUST NOT throw exceptions.</p></div>