if (winlayout):
            try: uikit.app_restore(self, winlayout)
            except: pass # may fail for disabled/reordered plugin channels

        winstate = conf.load("state")
        if (winstate):
            for id,prev in winstate.items():
                try: self.channels[id].current = prev["current"]
                except: pass

    # store window/widget states (sizes, selections, etc.)
    def app_state(self, widget):
        # gtk widget states
        widgetnames = ["win_streamtuner2", "toolbar", "notebook_channels", ] \
                    + [id+"_list" for id in self.channel_names] \
                    + [id+"_cat" for id in self.channel_names]