Query a font's family name.
const char * TTF_FontFaceFamilyName(const TTF_Font *font);
the font to query.
Returns the font's family name.
This string is dictated by the contents of the font file.
Note that the returned string is to internal storage, and should not be modifed or free'd by the caller. The string becomes invalid, with the rest of the font, when
font is handed to TTF_CloseFont().
This function is available since SDL_ttf 2.0.12.