Es handelt sich dabei um Mengen (Set of).
Delphi-Quellcode:
type
THoverEffect = (heColor, heCursor, heUnderline);
THoverEffects = set of THoverEffect;
TLinkLabel = class(TLabel)
private
FEffects: THoverEffects;
public
property HoverEffect: THoverEffects read FEffects write FEffects;
end;