ART Rich Text mark.
Members:
| IG_ARTX_richtext_border_get | Queries attributes of annotation border. |
| IG_ARTX_richtext_border_set | Sets annotation border attributes. |
| IG_ARTX_richtext_bounds_get | Queries the bounding rectangle of annotation. |
| IG_ARTX_richtext_bounds_set | Updates the bounding rectangle of annotation. |
| IG_ARTX_richtext_create | Creates a new instance of rich text annotation (IG_ARTX_MARK_RICH_TEXT). |
| IG_ARTX_richtext_fillcolor_get | Queries annotation fill color. |
| IG_ARTX_richtext_fillcolor_set | Updates annotation fill color with new value. |
| IG_ARTX_richtext_opacity_get | Queries the opacity value of annotation. |
| IG_ARTX_richtext_opacity_set | Sets the opacity value of annotation. |
| IG_ARTX_richtext_text_get | Queries annotation text string. Note that this is RTF text. |
| IG_ARTX_richtext_text_set | Updates annotation text. |