XmDirectionMatchPartial — A function that checks for a specified direction component

XmDirectionMatchPartial compares d1 and d2  along  the  direction  component  specified  by  dmask.   For
       example,  if dmask equals XmVERTICAL_MASK, then the function will compare only the vertical components of
       d1 and d2.

       d1        Specifies an XmDirection value to check.

       d2        Specifies an XmDirection value to check.

       dmask     Specifies the direction component along which d1 and d2 are to be checked.  Appropriate  values
                 for dmask are XmHORIZONTAL_MASK, XmVERTICAL_MASK, and XmPRECEDENCE_MASK.

XmDirectionMatchPartial    —   A   function   that   checks   for   a   specified   direction   component
       "XmDirectionMatchPartial"

XmDirection(3),    XmDirectionMatch(3),    XmDirectionToStringDirection(3),   XmStringDirection(3),   and
       XmStringDirectionToDirection(3).

                                                                                      XmDirectionMatchPartial(3)

       Returns True if the d1 and d2 match in the component specified by dmask; otherwise, returns False.

       #include <Xm/Xm.h>
       Boolean XmDirectionMatchPartial (d1,d2,dmask)
               XmDirection     d1;
               XmDirection     d2;
               XmDirection     dmask;
       (void)