ART Line mark object.
Members:
| IG_ARTX_line_bounds_get | Queries the bounding rectangle. |
| IG_ARTX_line_create | Creates line mark. |
| IG_ARTX_line_endhead_get | Queries the end head of the annotation. |
| IG_ARTX_line_endhead_set | Updates the end head of the annotation. |
| IG_ARTX_line_endpoint_get | Gets the line end point. |
| IG_ARTX_line_endpoint_set | Sets the line end point. |
| IG_ARTX_line_headfillcolor_get | Queries head fill color of the annotation. |
| IG_ARTX_line_headfillcolor_set | Updates the annotation head fill color. |
| IG_ARTX_line_line_get | Queries the annotation line attributes. |
| IG_ARTX_line_line_set | Updates the annotation line attributes. |
| IG_ARTX_line_opacity_get | Queries the value of annotation opacity. |
| IG_ARTX_line_opacity_set | Updates the value of annotation opacity. |
| IG_ARTX_line_starthead_get | Queries the start head of the annotation. |
| IG_ARTX_line_starthead_set | Updates the start head of the annotation. |
| IG_ARTX_line_startpoint_get | Gets the line start point. |
| IG_ARTX_line_startpoint_set | Sets the line start point. |