Man pages matching name qwtscaledraw in section 3:

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