ART Polyline mark.
| IG_ARTX_polyline_bounds_get | Queries the bounding rectangle. |
| IG_ARTX_polyline_closed_get | Checks whether the polyline is closed. |
| IG_ARTX_polyline_closed_set | Updates the polyline closed attribute. |
| IG_ARTX_polyline_create | Creates polyline mark. |
| IG_ARTX_polyline_endhead_get | Queries the end head of the annotation. |
| IG_ARTX_polyline_endhead_set | Updates the end head of the annotation. |
| IG_ARTX_polyline_headfillcolor_get | Queries head fill color of the annotation. |
| IG_ARTX_polyline_headfillcolor_set | Updates the annotation head fill color. |
| IG_ARTX_polyline_line_get | Queries the annotation line attributes. |
| IG_ARTX_polyline_line_set | Updates the annotation line attributes. |
| IG_ARTX_polyline_opacity_get | Queries the value of annotation opacity. |
| IG_ARTX_polyline_opacity_set | Updates the value of annotation opacity. |
| IG_ARTX_polyline_point_count_get | Gets the number of polyline points. |
| IG_ARTX_polyline_points_get | Gets the polyline points. |
| IG_ARTX_polyline_points_set | Sets the polyline points. |
| IG_ARTX_polyline_starthead_get | Queries the start head of the annotation. |
| IG_ARTX_polyline_starthead_set | Updates the start head of the annotation. |