* <term>CHIMARA_PLUGIN_ALREADY_RUNNING</term>
* <listitem><para>A plugin was opened while there was already another plugin
* running in the widget.</para></listitem>
* <term>CHIMARA_PLUGIN_ALREADY_RUNNING</term>
* <listitem><para>A plugin was opened while there was already another plugin
* running in the widget.</para></listitem>