able class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">instance</td><td>The Vulkan instance to query, or <code>NULL</code> to retrieve functions related to instance creation. </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">procname</td><td>The ASCII encoded name of the function. </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The address of the function, or <code>NULL</code> if an <a class="el" href="intro_guide.html#error_h