VtPenCap provides methods for displaying line endings.
| Constant | Description |
| VtPenCapButt | The line is squared off at the endpoint. |
| VtPenCapRound | A semicircle with the diameter of the line thickness is drawn at the end of the line. |
| VtPenCapSquare | The line continues beyond the endpoint for a distance equal to half the line thickness and is squared off. |