XmVaCreateContainer(3) on Linux
The text ab78093859ce, as Debian 13 (Trixie), Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie) shipped it.
A Container widget convenience creation functions. "XmVaCreateContainer" "XmVaCreateManagedContainer" "creation functions"