def hidelist(self, window_name, object_name):
        """
        Hide combo box list / menu
        
        @param window_name: Window name to type in, either full name,
        LDTP's name convention, or a Unix glob.
        @type window_name: string
        @param object_name: Object name to type in, either full name,
        LDTP's name convention, or a Unix glob. 
        @type object_name: string

        @return: 1 on success.
        @rtype: integer
        """
        object_handle = self._get_object_handle(window_name, object_name)
        object_handle.activate()
        object_handle.sendKey(AXKeyCodeConstants.ESCAPE)
        return 1