nsIPluginInstance* pluginInstance = (nsIPluginInstance*) instance->pdata;
CPluginInstancePeer* peer = (CPluginInstancePeer*) instance->pdata; nsIPluginInstance* pluginInstance = peer->GetInstance();
NPP_Print(NPP instance, NPPrint* printInfo){//    TRACE("NPP_Print\n");    if(printInfo == NULL)   // trap invalid parm        return;	if (instance != NULL)	{		nsIPluginInstance* pluginInstance = (nsIPluginInstance*) instance->pdata;		pluginInstance->Print((nsPluginPrint* ) printInfo );	}}