XmStringDirection — Data type for the direction of display in a string "XmStringDirection" "data types"

XmStringDirection is the data type for specifying the direction in which the system  displays  characters
       of a string, or characters of a segment of a compound string.  This is an enumeration with three possible
       values:

       XmSTRING_DIRECTION_L_TO_R
                 Specifies left to right display

       XmSTRING_DIRECTION_R_TO_L
                 Specifies right to left display

       XmSTRING_DIRECTION_DEFAULT
                 Specifies  that the display direction will be set by the widget in which the compound string is
                 to be displayed.

XmStringDirection  —  Data type for the direction of display in a string "XmStringDirection" "data types"
       "XmStringDirection"

XmString(3).

                                                                                            XmStringDirection(3)

       #include <Xm/Xm.h>