nsresult err = pluginInstance->HandleEvent((nsPluginEvent*)event, &handled);
nsresult err = pluginInstance->HandleEvent(&pluginEvent, &handled);
NPP_HandleEvent(NPP instance, void* event){//    TRACE("NPP_HandleEvent\n");	int16 eventHandled = FALSE;	if (instance == NULL)		return eventHandled;			nsIPluginInstance* pluginInstance = (nsIPluginInstance*) instance->pdata;	if (pluginInstance) {        PRBool handled;		nsresult err = pluginInstance->HandleEvent((nsPluginEvent*)event, &handled);        if (err) return FALSE;        eventHandled = (handled == PR_TRUE);    }		return eventHandled;}