XtGetDisplays(3) on Linux
The text 0d22b163ea82, as Debian 10 (Buster), Debian 9 (Stretch) shipped it.
retrieve a list of displays associated with an application context
The text 0d22b163ea82, as Debian 10 (Buster), Debian 9 (Stretch) shipped it.
retrieve a list of displays associated with an application context