k" href="cairo-PDF-Surfaces.html#cairo-pdf-version-t" title="enum cairo_pdf_version_t"><span class="type">cairo_pdf_version_t</span></a> const **versions</code></em>,
                                                         <em class="parameter"><code><span class="type">int</span> *num_versions</code></em>);</pre>
<p>
Used to retrieve the list of supported versions. See
<a class="link" href="cairo-PDF-Surfaces.html#cairo-pdf-surface-restrict-to-version" title="cairo_pdf_surface_restrict_to_version ()"><code