Man pages matching name xmvacreatearrowbuttongadget in section 3:

XmVaCreateArrowButtonGadget.3.en	debian 10 / libmotif-dev
XmVaCreateArrowButtonGadget.3.en	debian 11 / libmotif-dev
XmVaCreateArrowButtonGadget.3.en	debian 12 / libmotif-dev