tion always returns a
valid pointer; if memory cannot be allocated, then a special
error object is returned where all operations on the object do nothing.
You can check for this with <a class="link" href="cairo-Regions.html#cairo-region-status" title="cairo_region_status ()"><code class="function">cairo_region_status()</code></a>.</p>
</div>
<p class="since">Since: 1.10</p>
</div>
<hr>
<div class="refsect2">
<a name="cairo-region-reference"></a><h3>cairo_region_reference ()</h3>
<pre class="programlisting