Sets the style field of a PangoFontDescription. The
PangoStyle enumeration describes whether the font is slanted and
the manner in which it is slanted; it can be either
PANGO_STYLE_NORMAL, PANGO_STYLE_ITALIC, or PANGO_STYLE_OBLIQUE.
Most fonts will either have a italic style or an oblique
style, but not both, and font matching in Pango will
match italic specifications with oblique fonts and vice-versa
if an exact match is not found.
Sets the style field of a PangoFontDescription. The PangoStyle enumeration describes whether the font is slanted and the manner in which it is slanted; it can be either PANGO_STYLE_NORMAL, PANGO_STYLE_ITALIC, or PANGO_STYLE_OBLIQUE. Most fonts will either have a italic style or an oblique style, but not both, and font matching in Pango will match italic specifications with oblique fonts and vice-versa if an exact match is not found.