XmListSelectItem(3) on Linux
The text 4c6a832ca172, as Debian 13 (Trixie), Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie) shipped it.
A List function that selects an item in the list "XmListSelectItem" "List functions" "XmListSelectItem"