>> 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 ...
>
> Looks like this is not available in the public API. Does it work if I
> check for a "glyf" font table?
>
> See https://codereview.appspot.com/569700043/
Ah, silly me. Simply use function `FT_Get_Font_Format` instead.
Werner
