The CalloutFormat type exposes the following members.
|AutomaticLength||Specifies that the first segment of the callout line (the segment attached to the text callout box) be scaled automatically when the callout is moved.|
|CustomDrop||Sets the vertical distance (in points) from the edge of the text bounding box to the place where the callout line attaches to the text box.|
|CustomLength||Specifies that the first segment of the callout line (the segment attached to the text callout box) retain a fixed length whenever the callout is moved.|
|PresetDrop||Specifies whether the callout line attaches to the top, bottom, or center of the callout text box or whether it attaches at a point that's a specified distance from the top or bottom of the text box.|