  </span><span class="symbol">(</span><span class="usertype">gpointer</span><span class="normal">            instance</span><span class="symbol">,</span> <span class="normal">                         </span><span class="usertype">guint</span><span class="normal">               signal_id</span><span class="symbol">,</span> <span class="normal">                         </span><span class="usertype">GQuark</span><span class="normal">              detail</span><span class="symbol">,</span> <span class="normal">                         </span><span class="usertype">