| Name | Value | Description |
| kBSplineCurve | 5128 | Use F1 key to display help topic. |
| kCircleCurve | 5124 | Use F1 key to display help topic. |
| kCircularArcCurve | 5125 | Use F1 key to display help topic. |
| kEllipseFullCurve | 5126 | Use F1 key to display help topic. |
| kEllipticalArcCurve | 5127 | Use F1 key to display help topic. |
| kLineCurve | 5122 | Use F1 key to display help topic. |
| kLineSegmentCurve | 5123 | Use F1 key to display help topic. |
| kPolylineCurve | 5129 | Use F1 key to display help topic. |
| kUnknownCurve | 5121 | Use F1 key to display help topic. |