ART Arrow mark.
Members:
| IG_ARTX_arrow_bounds_get | Queries the bounding rectangle of annotation. |
| IG_ARTX_arrow_create | Creates a new instance of Arrow annotation (IG_ARTX_MARK_ARROW). |
| IG_ARTX_arrow_endpoint_get | Queries arrow end point. |
| IG_ARTX_arrow_endpoint_set | Updates arrow end point position. |
| IG_ARTX_arrow_head_get | Queries attributes of annotation arrow head. |
| IG_ARTX_arrow_head_set | Sets attributes of annotation arrow head. |
| IG_ARTX_arrow_highlight_get | Queries the highlight state of annotation. |
| IG_ARTX_arrow_highlight_set | Sets highlight state of annotation. |
| IG_ARTX_arrow_line_get | Queries attributes of line used to draw the annotation. |
| IG_ARTX_arrow_line_set | Sets attributes of line used to draw the annotation. |
| IG_ARTX_arrow_startpoint_get | Queries arrow start point. |
| IG_ARTX_arrow_startpoint_set | Updates arrow start point position. |