| DclDrawMarker (SGPMU, SGPMZU) | Draw marker line with a user coordinates system. | 
| DclDrawMarkerNormalized (SGPMV, SGPMZV) | Draw marker line with a regular coordinates system. | 
| DclDrawMarkerProjected (SGPMR, SGPMZR) | Draw marker line with a seeing through coordinates system. | 
| DclSetMarkerType (SGSPMT) | Set marker type. | 
| DclSetMarkerIndex (SGSPMI) | Set line index of a marker. | 
| DclSetMarkerSize (SGSPMS) | Set size of a marker. | 
| DclGetMarkerType (SGQPMT) | Refer to marker type. | 
| DclGetMarkerIndex (SGQPMI) | Refer to line index of a marker. | 
| DclGetMarkerSize (SGQPMS) | Refer to size of a marker. | 
*The corresponding f77 interface name in parentheses.