XmIsTraversable(3X)XmIsTraversable(3X)NAMEXmIsTraversable - A function that identifies whether a widget can be
traversed
SYNOPSIS
#include <Xm/Xm.h>
Boolean XmIsTraversable (widget)
Widget widget;
DESCRIPTIONXmIsTraversable determines whether the specified widget is eligible to
receive focus through keyboard traversal. In general, a widget is eli‐
gible to receive focus when all of the following conditions are true:
The widget and its ancestors are not being destroyed, are sensitive,
and have a value of True for XmNtraversalOn. The widget and its ances‐
tors are realized, managed, and (except for gadgets) mapped. Some part
of the widget's rectangular area is unobscured by the widget's ances‐
tors, or some part of the widget's rectangular area is inside the work
window (but possibly outside the clip window) of a ScrolledWindow whose
XmNscrollingPolicy is XmAUTOMATIC and whose XmNtraverseObscuredCallback
is not NULL.
Some widgets may not be eligible to receive focus even if they meet all
these conditions. For example, most managers cannot receive focus
through keyboard traversal. Some widgets may be eligible to receive
focus under particular conditions. For example, a DrawingArea is eligi‐
ble to receive focus if it meets the conditions above and has no child
whose XmNtraversalOn resource is True. Specifies the ID of the widget
RETURN VALUE
Returns True if the widget is eligible to receive focus through key‐
board traversal; otherwise, returns False.
SEE ALSOXmGetVisibility(3X), XmProcessTraversal(3X)XmIsTraversable(3X)
