class="link" href="cairo-Regions.html#cairo-region-union" title="cairo_region_union ()"><code class="function">cairo_region_union()</code></a> and
<a class="link" href="cairo-Regions.html#cairo-region-intersect" title="cairo_region_intersect ()"><code class="function">cairo_region_intersect()</code></a> to be performed on them.</p>
<p>Memory management of <a class="link" href="cairo-Regions.html#cairo-region-t" title="cairo_region_t"><span class="type">cairo_region_t</span></a> is done with
<a class="link