XmTrackingEvent(3) on Linux
The text bd90b7ffbc64, as Debian 13 (Trixie), Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie) shipped it.
A Toolkit function that provides a modal interaction "XmTrackingEvent" "Toolkit functions" "XmTrackingEvent"