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

Icon Parents

ActiveXControl	CoolBand	Form
Grid	ImageList	ListView
OLEServer	Printer	ProgressBar
PropertyPage	PropertySheet	RichEdit
Root	StatusBar	SubForm
SysTrayItem	TCPSocket	ToolBar
ToolControl	TrackBar	TreeView
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