Man pages matching name qwtarrowbutton in section 3:

QwtArrowButton.3.en	debian 10 / libqwt-doc
QwtArrowButton.3.en	debian 10 / libqwt5-doc
QwtArrowButton.3.en	debian 11 / libqwt-doc
QwtArrowButton.3.en	debian 12 / libqwt-doc