struct PK_EDGE_set_blend_chamfer_o_s { int o_t_version; --- version number of option structure PK_blend_properties_t properties; --- properties of blend --- (PK_blend_properties_t) }; typedef struct PK_EDGE_set_blend_chamfer_o_s PK_EDGE_set_blend_chamfer_o_t; Holds optional controls for setting a chamfer blend. The option structure defines options applicable to setting a chamfer blend.