XmDirectionMatch(library call) XmDirectionMatch(library call)

NAME

XmDirectionMatch -- A function that checks for a specified direction
component

SYNOPSIS

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

DESCRIPTION

XmDirectionMatch compares two XmDirection values. The function
returns a Boolean value depending on whether or not the two input
values "match." The simplest match is when d1 and d2 are identical.
However, other matches are possible. XmDirectionMatch attempts to
compare specified bits only; nonspecified bits automatically match.

For example, suppose that d1 equals XmTOP_TO_BOTTOM_RIGHT_TO_LEFT. In
this case, the function will return True if d2 equals either
XmRIGHT_TO_LEFT or XmTOP_TO_BOTTOM. However, the function will return
False if d2 equals XmTOP_TO_BOTTOM_LEFT_TO_RIGHT,
XmBOTTOM_TO_TOP_RIGHT_TO_LEFT, or XmBOTTOM_TO_TOP_LEFT_TO_RIGHT.

Note that direction can be thought of as having three components, a
horizontal component, a vertical component, and the precedence among
them. This means that in addition to the previously mentioned
directions, the function will still return False if d1 equals
XmTOP_TO_BOTTOM_RIGHT_TO_LEFT and d2 equals
XmRIGHT_TO_LEFT_TOP_TO_BOTTOM.

d1 Specifies an XmDirection value.

d2 Specifies an XmDirection value.

RETURN VALUES

Returns True if d1 "matches" d2; otherwise, returns False.

RELATED INFORMATION

XmDirection(3), XmDirectionMatchPartial(3),
XmDirectionToStringDirection(3), XmString(3), XmStringDirection(3),
and XmStringDirectionToDirection(3).

XmDirectionMatch(library call)