XmDirection

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
       system displays subwidgets, children of widgets, or other visual
       components 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
       horizontal and vertical directions can be specified independent of each
       other. XmDirection also specifies the precedence of the horizontal and
       vertical 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
       provides 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
                 bottom.  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),
       XmDirectionToStringDirection(3), XmString(3), XmStringDirection(3), and
       XmStringDirectionToDirection(3).



                                                     XmDirection(library call)