</li>
<li>
Set the version field </li>
<li>
Set the size field </li>
</ul>
</dd></dl>
<p>Zeroing the structure sets all the event attributes types and values to the default value.</p>
<p>The version and size field are used by the Tools Extension implementation to handle multiple versions of the attributes structure.</p>
<p>It is recommended that the caller use one of the following to methods to initialize the event attributes structure:</p>
<dl class="section user"><dt>Method 1</dt><dd>Initializing nvtxEven