The most recent version of this documentation can be found at https://docs.dyalog.com/20.0/.

Root Children

Bitmap	BrowseBox	Clipboard
Cursor	FileBox	Font
Form	HTMLRenderer	Icon
ImageList	Locator	Menu
Metafile	MsgBox	NetClient
NetType	OCXClass	OLEClient
OLEServer	Printer	PropertySheet
SysTrayItem	TCPSocket	Timer
TipField