— A function that determines if a widget is
returns the visibility state of the specified widget. It
checks to see if some part of the widget's rectangular area is unobscured by
the widget's ancestors, 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 not NULL.
does not check to see if widget
is obscured by its
siblings or by siblings of its ancestors. Consequently, XmGetVisibility
for widgets which are completely or
partially covered by one or more siblings of widget
by one or more
siblings 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
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.
- Specifies the ID of the widget
Returns one of the following values:
- Indicates that the widget is mapped, not obscured, and is completely
visible on the screen.
- Indicates that the widget is mapped, and is not completely visible on the
screen (partially obscured).
- Indicates that the widget is not at all visible on the screen.