It has the following fields: PangoEngineShape*shape_engine; the engine for doing rendering-system-dependent processing. PangoEngineLang*lang_engine; the engine for doing rendering-system-independent processing. PangoFont*font; the font for this segment. guintlevel:8; the bidrectional level for this segment. guintgravity:3; the glyph orientation for this segment. guintcentered_baseline:1; whether this segment should be shifted to center around the baseline. PangoLanguage*language; the detected language for this segment. GSList*extra_attrs; extra attributes for this segment.