XmVaCreateManagedPushButtonGadget(3) on Linux
The text 938fe4613c54, as Debian 13 (Trixie), Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie) shipped it.
A PushButtonGadget widget convenience creation functions. "XmVaCreateTogglePushButtonGadget" "XmVaCreateManagedPushButtonGadget" "creation functions" "XmVaCreatePushButtonGadget"