otLayoutLanguageGetFeatureTags

Fetches a list of all features in the specified face's GSUB table or GPOS table, underneath the specified script and language. The list returned will begin at the offset provided.

uint

(

harfbuzz.face.Face face

harfbuzz.types.Tag tableTag

uint scriptIndex

uint languageIndex

uint startOffset

ref harfbuzz.types.Tag[] featureTags

)

Parameters

face harfbuzz.face.Face: #hb_face_t to work upon
tableTag harfbuzz.types.Tag: #HB_OT_TAG_GSUB or #HB_OT_TAG_GPOS
scriptIndex uint: The index of the requested script tag
languageIndex uint: The index of the requested language tag
startOffset uint: offset of the first feature tag to retrieve
featureTags harfbuzz.types.Tag[]: The array of #hb_tag_t feature tags found for the query

Return Value

Type: uint

Total number of feature tags.