The predicate for whether the interface containing a pane is visible.
capi
interface-visible-p pane => visiblep
pane⇩ |
A CAPI pane. |
visiblep |
A boolean. |
The function interface-visible-p
returns nil
if one of the following is true:
An error is signalled if pane is not a CAPI pane (that is, it is not an instance of a subclass of element, collection or pinboard-object).
Otherwise interface-visible-p
returns t
.
On Microsoft Windows, interface-visible-p
may return t
even though the interface is entirely obscured by another window.
CAPI User Guide and Reference Manual (Windows version) - 01 Dec 2021 19:33:57