XmTextShowPosition(3) on Linux
The text 32acd81ee5b2, as Debian 13 (Trixie), Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie) shipped it.
A Text function that forces text at a given position to be displayed "XmTextShowPosition" "Text functions" "XmTextShowPosition"