This class provides methods and properties for Legacy ART Freehand line mark.
| IG_ARTX_freeline_bounds_get | Queries the bounding rectangle of annotation. |
| IG_ARTX_freeline_closed_get | Queries the close state of annotation. |
| IG_ARTX_freeline_closed_set | Updates the close state of annotation. |
| IG_ARTX_freeline_create | Creates an instance of free line mark (IG_ARTX_MARK_FREEHAND_LINE). |
| IG_ARTX_freeline_highlight_get | Queries the highlight state of annotation. |
| IG_ARTX_freeline_highlight_set | Sets highlight state of annotation. |
| IG_ARTX_freeline_line_get | Queries attributes of line used to draw the annotation. |
| IG_ARTX_freeline_line_set | Sets attributes of line used to draw the annotation. |
| IG_ARTX_freeline_point_count_get | Obtains the number of freeline points. |
| IG_ARTX_freeline_points_get | Queries annotation points data. |
| IG_ARTX_freeline_points_set | Updates annotation points data. |