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

ChooseFont Method

ActiveXControl	Button	ButtonEdit
Calendar	Combo	ComboEx
DateTimePicker	Edit	Font
Form	Grid	Group
Label	List	ListView
PropertyPage	PropertySheet	RichEdit
Root	Spinner	Static
StatusBar	SubForm	TabBtn
Text	TipField	TreeView