ART Hotspot mark object.

Members:

IG_ARTX_hotspot_border_get	Queries the annotation border.
IG_ARTX_hotspot_border_set	Updates the annotation border.
IG_ARTX_hotspot_bounds_get	Queries the bounding rectangle.
IG_ARTX_hotspot_bounds_set	Updates the bounding rectangle.
IG_ARTX_hotspot_create	Creates an instance of hotspot mark.
IG_ARTX_hotspot_fillcolor_get	Queries fill color of the annotation.
IG_ARTX_hotspot_fillcolor_set	Updates the annotation fill color.
IG_ARTX_hotspot_link_get	Queries link object associated with the annotation.
IG_ARTX_hotspot_link_set	Updates the link object associated with the annotation.
IG_ARTX_hotspot_opacity_get	Queries the value of annotation opacity.
IG_ARTX_hotspot_opacity_set	Updates the value of annotation opacity.