| Value | Meaning |
|---|---|
| Default0 | serialize glyph names, clusters and positions. |
| NoClusters1 | do not serialize glyph cluster. |
| NoPositions2 | do not serialize glyph position information. |
| NoGlyphNames4 | do no serialize glyph name. |
| GlyphExtents8 | serialize glyph extents. |
| GlyphFlags16 | serialize glyph flags. Since: 1.5.0 |
| NoAdvances32 | do not serialize glyph advances, glyph offsets will reflect absolute glyph positions. Since: 1.8.0 |
| Defined63 | All currently defined flags. Since: 4.4.0 |
Flags that control what glyph information are serialized in harfbuzz.global.bufferSerializeGlyphs.