The allowable values are:

• None 0 No Highlighting
• Box 1 A bounding box is drawn around the label
• BoxHangles 2 Handles are drawn at the corners of the above box
• AllHandles 4 Handles are drawn at all relevant 'points' (This only applies to labels of type dolabelPolygon, doLabelPolyline & doLabelArc)

Although defined as enumerated types, the values above can be (and normally are) used as bit fields, so the value doSelectBox + doSelectBoxHandles gives a bounding box with visible corners.

Target Platforms: .NET CLR 4.8 or higher