This enumeration identifies attributes of curve annotations.

Values:

IG_ARTX_ATTR_CURVE_BOUNDS	Identifies annotation bounding rectangle. Read-only attribute.
IG_ARTX_ATTR_CURVE_OPACITY	Identifies annotation opacity.
IG_ARTX_ATTR_CURVE_LINE	Identifies attributes of line used to draw this annotation.
IG_ARTX_ATTR_CURVE_POINT_COUNT	Identifies point count of curve. Read-only attribute.
IG_ARTX_ATTR_CURVE_HITTEST_BOUNDS	This value has been deprecated and will be removed from the public API in a future release.