true if data found, false otherwiseotLayoutGetSizeParams
fn
harfbuzz.types.Bool otLayoutGetSizeParams(harfbuzz.face.Face face, out uint designSize, out uint subfamilyId, out harfbuzz.types.OtNameId subfamilyNameId, out uint rangeStart, out uint rangeEnd)Fetches optical-size feature data (i.e., the size feature from GPOS). Note that the subfamily_id and the subfamily name string (accessible via the subfamily_name_id) as used here are defined as pertaining only to fonts within a font family that differ specifically in their respective size ranges; other ways to differentiate fonts within a subfamily are not covered by the size feature.
For more information on this distinction, see the size feature documentation.
Parameters
face | #hb_face_t to work upon |
designSize | The design size of the face |
subfamilyId | The identifier of the face within the font subfamily |
subfamilyNameId | The ‘name’ table name ID of the face within the font subfamily |
rangeStart | The minimum size of the recommended size range for the face |
rangeEnd | The maximum size of the recommended size range for the face |