func setCallbackHandlers(w *window.Window) { h := &sciter.CallbackHandler{ OnDataLoaded: func(ld *sciter.ScnDataLoaded) int { log.Println("loaded", ld.Uri()) return sciter.LOAD_OK }, OnLoadData: func(ld *sciter.ScnLoadData) int { log.Println("loading", ld.Uri()) return sciter.LOAD_OK }, } w.SetCallback(h) }