otLayoutGetFontExtents

Fetches script/language-specific font extents. These values are looked up in the BASE table's MinMax records.

If no such extents are found, the default extents for the font are fetched. As such, the return value of this function can for the most part be ignored. Note that the per-script/language extents do not have a line-gap value, and the line-gap is set to zero in that case.

harfbuzz.types.Bool

(

harfbuzz.font.Font font

harfbuzz.types.Direction direction

harfbuzz.types.Tag scriptTag

harfbuzz.types.Tag languageTag

out harfbuzz.types.FontExtents extents

)

Parameters

font harfbuzz.font.Font: a font
direction harfbuzz.types.Direction: text direction.
scriptTag harfbuzz.types.Tag: script tag.
languageTag harfbuzz.types.Tag: language tag.
extents harfbuzz.types.FontExtents: font extents if found.

Return Value

Type: harfbuzz.types.Bool

true if found script/language-specific font extents.