Re: [ft] can i obtain the number of available face indexs of a font file before we new faces from it?

[Werner LEMBERG]

> i see there`s face_index parameter in all new_face functions,i s it
> possible to list all available values, so i can let user make a
> choice to create a new face with the face index they choosed?

From the documentation of FT_Open_Face:

  FT_Open_Face can be used to quickly check whether the font format of
  a given font resource is supported by FreeType.  If the ‘face_index’
  field is negative, the function's return value is 0 if the font
  format is recognized, or non-zero otherwise; the function returns a
  more or less empty face handle in ‘*aface’ (if ‘aface’ isn't NULL).
  The only useful field in this special case is ‘face->num_faces’
  which gives the number of faces within the font file.  After
  examination, the returned FT_Face structure should be deallocated
  with a call to FT_Done_Face.


    Werner