Using Programming Languages other than VBA

Sub Example_GenerateUsageData()
	' This example provides usage information for the layers
	' in a drawing
	Dim MyLayers As IAcadLayers2
	Set MyLayers = ThisDrawing.Layers
	MyLayers.GenerateUsageData
	Dim MyLayerObj As IAcadLayer2
	For Each MyLayerObj In ThisDrawing.Layers
	MyLayerObj.Description = "Test"
	MsgBox (MyLayerObj.Used)
	Next MyLayerObj
End Sub