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XmDirection(library call)			     XmDirection(library call)

NAME
       XmDirection — Data type for the direction of widget components

SYNOPSIS
       #include <Xm/Xm.h>

DESCRIPTION
       XmDirection is the data type specifying the direction in which the sys‐
       tem displays subwidgets, children of widgets, or	 other	visual	compo‐
       nents  that  are to be laid out.	 This data type also affects traversal
       order within tab groups.

       XmDirection is implemented as an unsigned char bit mask.	 The  horizon‐
       tal and vertical directions can be specified independent of each other.
       XmDirection also specifies the precedence of the horizontal and	verti‐
       cal  directions	relative  to  each  other.  For	 example,  a  value of
       XmRIGHT_TO_LEFT_TOP_TO_BOTTOM lays out a	 component  horizontally  from
       right to left first, then vertically top to bottom.

       XmDirection  provides the following masks, each of which corresponds to
       a particular bit in XmDirection:

	  ·  XmRIGHT_TO_LEFT_MASK

	  ·  XmLEFT_TO_RIGHT_MASK

	  ·  XmTOP_TO_BOTTOM_MASK

	  ·  XmBOTTOM_TO_TOP_MASK

	  ·  XmPRECEDENCE_HORIZ_MASK

	  ·  XmPRECEDENCE_VERT_MASK

       In addition to the preceding single bit masks,  XmDirection  also  pro‐
       vides  the  following  multiple bit masks. These multiple bit masks are
       particularly useful as arguments to XmDirectionMatchPartial:

	  ·  XmHORIZONTAL_MASK

	  ·  XmPRECEDENCE_MASK

	  ·  XmVERTICAL_MASK

       Motif also provides the following enumerated constants  for  specifying
       various combinations of directions:

       XmRIGHT_TO_LEFT_TOP_TO_BOTTOM
		 Specifies that the components are laid out from right to left
		 first, then top to bottom.

       XmLEFT_TO_RIGHT_TOP_TO_BOTTOM
		 Specifies that the components are laid out from left to right
		 first, then top to bottom.

       XmRIGHT_TO_LEFT_BOTTOM_TO_TOP
		 Specifies that the components are laid out from right to left
		 first, then bottom to top.

       XmLEFT_TO_RIGHT_BOTTOM_TO_TOP
		 Specifies that the components are laid out from left to right
		 first, then bottom to top.

       XmTOP_TO_BOTTOM_RIGHT_TO_LEFT
		 Specifies that the components are laid out from top to bottom
		 first, then right to left.

       XmTOP_TO_BOTTOM_LEFT_TO_RIGHT
		 Specifies that the components are laid out from top to bottom
		 first, then left to right.

       XmBOTTOM_TO_TOP_RIGHT_TO_LEFT
		 Specifies that the components are laid out from bottom to top
		 first, then right to left.

       XmBOTTOM_TO_TOP_LEFT_TO_RIGHT
		 Specifies that the components are laid out from bottom to top
		 first, then left to right.

       XmTOP_TO_BOTTOM
		 Specifies  that  the components are laid out from top to bot‐
		 tom.  If horizontal direction is important, do not  use  this
		 constant.

       XmBOTTOM_TO_TOP
		 Specifies  that  the  components  are laid out from bottom to
		 top.  If horizontal direction is important, do not  use  this
		 constant.

       XmDEFAULT_DIRECTION
		 Specifies  that  the components are laid out according to the
		 default direction. (This constant  is	primarily  for	widget
		 writers.)

       XmLEFT_TO_RIGHT
		 Specifies  that  the  components  are	laid  out from left to
		 right.	 If vertical direction is important, do not  use  this
		 constant.

       XmRIGHT_TO_LEFT
		 Specifies  that  the  components  are	laid out from right to
		 left.	If vertical direction is important, do	not  use  this
		 constant.

RELATED
       XmDirectionMatch(3), XmDirectionMatchPartial(3), XmDirectionToStringDi‐
       rection(3), XmString(3), XmStringDirection(3),  and  XmStringDirection‐
       ToDirection(3).

						     XmDirection(library call)

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