The single function in this section can be used to get the font format. Note that this information is not needed normally; however, there are special cases (like in PDF devices) where it is important to differentiate, in spite of FreeType's uniform API.

This function is in the X11/xf86 namespace for historical reasons and in no way depends on that windowing system.

FT_Get_X11_Font_Format

  FT_EXPORT( const char* )
  FT_Get_X11_Font_Format( FT_Face  face );