XmGetVisibility(library call) XmGetVisibility(library call)
NAMEXmGetVisibility — A function that determines if a widget is visible
SYNOPSIS
#include <Xm/Xm.h>
XmVisibility XmGetVisibility(
Widget widget);
DESCRIPTIONXmGetVisibility returns the visibility state of the specified widget.
It checks to see if some part of the widget's rectangular area is unob‐
scured by the widget's ancestors, or some part of the widget's rectan‐
gular 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.
XmGetVisibility does not check to see if widget is obscured by its sib‐
lings or by siblings of its ancestors. Consequently, XmGetVisibility
returns XmVISIBILITY_UNOBSCURED for widgets which are completely or
partially covered by one or more siblings of widget by one or more sib‐
lings of ancestors of widget.
When a widget which is unrealized is being queried, it is indicated
that the widget is fully obscured. If an application unmaps a widget
that has its XmNmappedWhenManaged resource set to True, the return
value is undefined. When a widget which is unmanaged is being queried,
it is indicated that the widget is fully obscured.
widget Specifies the ID of the widget
RETURN
Returns one of the following values:
XmVISIBILITY_UNOBSCURED
Indicates that the widget is mapped, not obscured, and is
completely visible on the screen.
XmVISIBILITY_PARTIALLY_OBSCURED
Indicates that the widget is mapped, and is not completely
visible on the screen (partially obscured).
XmVISIBILITY_FULLY_OBSCURED
Indicates that the widget is not at all visible on the
screen.
RELATEDXmIsTraversable(3), XmManager(3), and XmProcessTraversal(3).
XmGetVisibility(library call)
