otMetricsGetPositionWithFallback
fn
void otMetricsGetPositionWithFallback(harfbuzz.font.Font font, harfbuzz.types.OtMetricsTag metricsTag, out harfbuzz.types.Position position)Fetches metrics value corresponding to metrics_tag from font, and synthesizes a value if it the value is missing in the font.
Parameters
font | an #hb_font_t object. |
metricsTag | tag of metrics value you like to fetch. |
position | result of metrics value from the font. |