"><em class="parameter"><code>blue</code></em>, </span><span class="term"><em class="parameter"><code>alpha</code></em></span></dt><dd><p>
                    Specify whether red, green, blue, and alpha can or cannot be written
                    into the frame buffer.
                    The initial values are all <code class="constant">GL_TRUE</code>,
                    indicating that the color components can be written.
                </p></dd></dl></div></div><div class="refsect1" lang="en" xml:lang