ss="constant">GL_SAMPLES_PASSED</code>, <em class="parameter"><code>pname</code></em> can be as follows:
        </p><div class="variablelist"><dl><dt><span class="term"><code class="constant">GL_CURRENT_QUERY</code></span></dt><dd><p>
                        <em class="parameter"><code>params</code></em> returns the name of the currently active occlusion query object.
                        If no occlusion query is active, 0 is returned.  The initial value is 0.
                    </p></dd><dt><span clas