Fetches the cluster level of a buffer. The #hb_buffer_cluster_level_t dictates one aspect of how HarfBuzz will treat non-base characters during shaping.
An #hb_buffer_t
The cluster level of buffer
Fetches the cluster level of a buffer. The #hb_buffer_cluster_level_t dictates one aspect of how HarfBuzz will treat non-base characters during shaping.