A variable of this enumerated data type specifies the orientation of a graphic component, and the direction of motion if the graphic component is displaying a moving object. See the documentation of the VSTYLE data type for an example of its use.

TYPE VDIR : (* Orientation values for HMI elements *)
   (RIGHT, (* Left to Right *)
    DOWN, (* Top to Bottom *)
    LEFT, (* Right to Left *)
    UP) (* Bottom to Top *)