This enumeration identifies attributes of encryption annotations.
Values:
| IG_ARTX_ATTR_ENCRYPTION_BOUNDS | Identifies annotation bounding rectangle. |
| IG_ARTX_ATTR_ENCRYPTION_PASSWORD | Identifies encryption password. |
| IG_ARTX_ATTR_ENCRYPTION_APPLIED | Identifies the applied state. Read-only attribute. |
| IG_ARTX_ATTR_ENCRYPTION_HITTEST_BOUNDS | This value has been deprecated. |