Type that controls how the content is scrolled.
enum Elm.Scroller.Single_Direction { none: 0, soft, hard, last }
typedef enum { ELM_SCROLLER_SINGLE_DIRECTION_NONE = 0, ELM_SCROLLER_SINGLE_DIRECTION_SOFT, ELM_SCROLLER_SINGLE_DIRECTION_HARD, ELM_SCROLLER_SINGLE_DIRECTION_LAST } Elm_Scroller_Single_Direction;