This enumeration identifies attributes of line annotations.
| IG_ARTX_ATTR_LINE_BOUNDS | Identifies annotation bounding rectangle. Read-only attribute. |
| IG_ARTX_ATTR_LINE_OPACITY | Identifies annotation opacity. |
| IG_ARTX_ATTR_LINE_LINE | Identifies attributes of line used to draw this annotation. |
| IG_ARTX_ATTR_LINE_HEADFILLCOLOR | Identifies fill color of arrows drawn on ends of line. |
| IG_ARTX_ATTR_LINE_STARTHEAD | Identifies attributes of line start head. |
| IG_ARTX_ATTR_LINE_ENDHEAD | Identifies attributes of line end head. |
| IG_ARTX_ATTR_LINE_STARTPOINT | Identifies start point of line. |
| IG_ARTX_ATTR_LINE_ENDPOINT | Identifies end point of line. |
| IG_ARTX_ATTR_LINE_HITTEST_BOUNDS | This value has been deprecated and will be removed from the public API in a future release. |