// Add our child docking window!
	DockTop(Dockable(subdock, "Child DockWindow").SizeHint(Size(300, 400)));
	subdock.DockTop(subdock.Dockable(arrayctrl2, "ArrayCtrl 2").SizeHint(Size(300, 200)));
	subdock.DockRight(subdock.Dockable(treectrl2, "TreeCtrl 2").SizeHint(Size(300, 200)));