<tr>
<td><p><span class="term"><em class="parameter"><code>first_property_name</code></em> :</span></p></td>
<td>the name of the first property, or <a href="./../glib/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> if no
-properties</td>
+properties. <span class="annotation">[<acronym title="NULL is ok, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span>
+</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>...</code></em> :</span></p></td>