<div class="content" name="NET_EVENT_DATA_HEADER" uuid="ed1449c4-7338-484e-b1f6-ed82593bf9af"><p>The <b>NET_EVENT_DATA_HEADER</b> structure specifies the
size and type of the message payload in an <b>EVENT_BUFFER</b> (section <a href="20e0a568-8798-42b8-b81b-878190ee37db" data-linktype="relative-path">2.2.2.1</a>) structure. The
buffer contains one or more <b>NET_EVENT_DATA_HEADER</b> structures.</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">DataSize</td>
 </tr>
 <tr>
  <td colspan="16">DataType</td>
  <td colspan="7">Reserved1</td>
  <td>A</td>
  <td colspan="8">Reserved2</td>
 </tr>
</tbody></table><p><b>DataSize
(4 bytes): </b>This field specifies the size, in bytes, of the <b>NET_EVENT_DATA_HEADER</b>
structure and the payload specified in the <b>DataType</b> field. The value
MUST be greater than or equal to 6 and less or equal to 65,535.</p><p><b>DataType
(2 bytes): </b>This field specifies the type of data that follows after the <b>NET_EVENT_DATA_HEADER</b>
structure. The field MUST be set to one of the following values.</p><dl>
<dd>
<dl>
<dd>
<table><thead>
  <tr>
   <th>
   <p>Value</p>
   </th>
   <th>
   <p>Meaning</p>
   </th>
  </tr>
 </thead><tbody><tr>
  <td>NetEventDataEventRecord 0x0001</td>
  <td>The data is an EventRecord (section 2.3.2.1) structure.</td>
 </tr><tr>
  <td>NetEventDataLost 0x0002</td>
  <td>The data is a NET_EVENT_LOST (section 2.3.2.3) structure.</td>
 </tr></tbody></table>
</dd></dl></dd></dl><p><b>Reserved1
(7 bits): </b> This field MUST be set to zero when sent and ignored upon
receipt.</p><p><b>A (1 bit):
</b> If set, this field indicates the last data item in the buffer.</p><p><b>Reserved2
(8 bits): </b> This field MUST be set to zero when sent and ignored upon
receipt.</p></div>