s_surface_dsc_comment()</code></a> should direct comments to the Setup
section of the PostScript output.</p>
<p>This function should be called at most once per surface, and must
be called before any call to <a class="link" href="cairo-PostScript-Surfaces.html#cairo-ps-surface-dsc-begin-page-setup" title="cairo_ps_surface_dsc_begin_page_setup ()"><code class="function">cairo_ps_surface_dsc_begin_page_setup()</code></a>
and before any drawing is performed to the surface.</p>
<p>See <a class="link" href="cair