NB: More recent documentation for Dyalog APL is available at https://docs.dyalog.com/20.0/.

Circle Properties

Type	Points	Radius
FCol	BCol	Start
End	ArcMode	LStyle
LWidth	FStyle	FillCol
Coord	Visible	Event
Dragable	OnTop	CursorObj
AutoConf	Data	Accelerator
KeepOnClose	DrawMode	RadiusMode
MethodList	ChildList	EventList
PropList