Re: Extracting approximate outlines from FT ?

[Werner LEMBERG]

> In https://docs.microsoft.com/en-us/typography/opentype/spec/ttch01
> it is explained that outside curves go clockwise. Does that hold for
> other font types too? (PFA, OTF?)

PostScript flavoured glyphs like PFA or OTF[*] have the opposite
orientation.  You can easily check whether the used FreeType driver
for a font is 'truetype':

  FT_Face face = Get_FT_Face_For_Current_Font(...);
  FT_Module module;

  module = &face->driver->root;
  if (!strcmp( module->clazz->module_name, "truetype"))
    ... we have a TrueType font ...


    Werner


[*] To be more precise: OpenType fonts can either use TrueType or
    PostScript outlines.  The former has a 'glyf' table in the font's
    SFNT data structure, the latter 'CFF' or 'CFF2' table.