Determines how the end of lines are drawn.
Value | Symbolic name | Description |
| 0 | Gdk::CAP_NOT_LAST | The same as Gdk::CAP_BUTT for lines of non-zero width. For zero width lines, the final point on the line will not be drawn. |
| 1 | Gdk::CAP_BUTT | The ends of the lines are drawn squared off and extending to the coordinates of the end point. |
| 2 | Gdk::CAP_ROUND | The ends of the lines are drawn as semicircles with the diameter equal to the line width and centered at the end point. |
| 3 | Gdk::CAP_PROJECTING | The ends of the lines are drawn squared off and extending half the width of the line beyond the end point. |