XmFileSelectionBoxGetChild(3) on Linux
The text 0fdcb0c147be, as Debian 13 (Trixie), Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie) shipped it.
A FileSelectionBox function used to access a component "XmFileSelectionBoxGetChild" "FileSelectionBox functions" "XmFileSelectionBoxGetChild"