<div class="content" name="RESOURCE_CHANGE" uuid="aa801658-aa0e-46ad-bf4d-4275a50459f8"><p>The server notifies the registered client of resource state
changes through the use of the RESOURCE_CHANGE structure.</p><table>
 <tbody><tr>
  <th><p><br/>0</p></th>
  <th><p><br/>1</p></th>
  <th><p><br/>2</p></th>
  <th><p><br/>3</p></th>
  <th><p><br/>4</p></th>
  <th><p><br/>5</p></th>
  <th><p><br/>6</p></th>
  <th><p><br/>7</p></th>
  <th><p><br/>8</p></th>
  <th><p><br/>9</p></th>
  <th><p>1<br/>0</p></th>
  <th><p><br/>1</p></th>
  <th><p><br/>2</p></th>
  <th><p><br/>3</p></th>
  <th><p><br/>4</p></th>
  <th><p><br/>5</p></th>
  <th><p><br/>6</p></th>
  <th><p><br/>7</p></th>
  <th><p><br/>8</p></th>
  <th><p><br/>9</p></th>
  <th><p>2<br/>0</p></th>
  <th><p><br/>1</p></th>
  <th><p><br/>2</p></th>
  <th><p><br/>3</p></th>
  <th><p><br/>4</p></th>
  <th><p><br/>5</p></th>
  <th><p><br/>6</p></th>
  <th><p><br/>7</p></th>
  <th><p><br/>8</p></th>
  <th><p><br/>9</p></th>
  <th><p>3<br/>0</p></th>
  <th><p><br/>1</p></th>
 </tr>
 <tr>
  <td colspan="32">Length</td>
 </tr>
 <tr>
  <td colspan="32">ChangeType</td>
 </tr>
 <tr>
  <td colspan="32">ResourceName (variable)</td>
 </tr>
 <tr>
  <td colspan="32">...</td>
 </tr>
</tbody></table><p><b>Length (4 bytes):</b>  The size of the resource
change notification, in bytes.</p><p><b>ChangeType (4 bytes):</b>  Specifies state change
of the resource. The following values are used to specify the change type.</p><dl>
<dd>
<table><thead>
  <tr>
   <th>
   <p>Value </p>
   </th>
   <th>
   <p>Meaning</p>
   </th>
  </tr>
 </thead><tbody><tr>
  <td>0x00000000</td>
  <td>RESOURCE_STATE_UNKNOWN</td>
 </tr><tr>
  <td>0x00000001</td>
  <td>RESOURCE_STATE_AVAILABLE</td>
 </tr><tr>
  <td>0x000000FF</td>
  <td>RESOURCE_STATE_UNAVAILABLE</td>
 </tr></tbody></table>
</dd></dl><p><b>ResourceName (variable):</b>  The null terminated
resource name on which the change has been detected. This MUST be either the
NetName or IP address provided in a WitnessrRegister call, or an
InterfaceGroupName returned to the client in a WitnessrGetInterfaceList
response.</p></div>