This enumeration identifies attributes of button annotations.
| IG_ARTX_ATTR_BUTTON_BOUNDS | Identifies annotation bounding rectangle. |
| IG_ARTX_ATTR_BUTTON_FILLCOLOR | Identifies attributes of annotation fill color. |
| IG_ARTX_ATTR_BUTTON_TEXTCOLOR | Identifies attributes of annotation text color. |
| IG_ARTX_ATTR_BUTTON_TEXT | Identifies annotation text. |
| IG_ARTX_ATTR_BUTTON_FONT | Identifies attributes of annotation text font. Font is specified as AT_ARTX_FONT structure. |
| IG_ARTX_ATTR_BUTTON_LOGFONT | Identifies attributes of annotation text font. Font is specified as AT_LOGFONT structure. |
| IG_ARTX_ATTR_BUTTON_OPACITY | Identifies annotation opacity. |
| IG_ARTX_ATTR_BUTTON_ORIENTATION | Identifies orientation of annotation text. |
| IG_ARTX_ATTR_BUTTON_HITTEST_BOUNDS | This value has been deprecated and will be removed from the public API in a future release. |