List the available sizes for a font. This is only applicable to bitmap
fonts. For scalable fonts, stores NULL at the location pointed to by
sizes and 0 at the location pointed to by n_sizes. The sizes returned
are in Pango units and are sorted in ascending order.
List the available sizes for a font. This is only applicable to bitmap fonts. For scalable fonts, stores NULL at the location pointed to by sizes and 0 at the location pointed to by n_sizes. The sizes returned are in Pango units and are sorted in ascending order.