cairo-font-options-hint-metrics (options)

options -- a cairo-font-options-t instance
metrics -- a value of the cairo-hint-metrics-t enumeration

The cairo-font-options-hint-metrics function gets the metrics hinting mode for the font options instance. The (setf cairo-font-options-hint-metrics) function sets the metrics hinting mode for the font options instance. This controls whether metrics are quantized to integer values in device units. See the documentation for the cairo-hint-metrics-t enumeration for full details.