XmCreateCommandDialog(3) on Linux
The text 2f670520f0fe, as Debian 13 (Trixie), Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie) shipped it.
The Command CommandDialog convenience creation function "XmCreateCommandDialog" "creation functions" "XmCreateCommandDialog"