ss="type">cairo_region_t</span></a> *dst</code></em>,
                            <em class="parameter"><code>const <a class="link" href="cairo-Types.html#cairo-rectangle-int-t" title="cairo_rectangle_int_t"><span class="type">cairo_rectangle_int_t</span></a> *rectangle</code></em>);</pre>
<p>Computes the exclusive difference of <em class="parameter"><code>dst</code></em>
 with <em class="parameter"><code>rectangle</code></em>
 and places the
result in <em class="parameter"><code>dst</code></em>
. That is, 