Using Programming Languages other than VBA

Sub Example_ColorIndex()
	'This example draws a circle and
	'returns the closest color index.

	Dim col As New AcadAcCmColor
	Call col.SetRGB(125, 175, 235)

	Dim cir As AcadCircle
	Dim pt(0 To 2) As Double
	Set cir = ThisDrawing.ModelSpace.AddCircle(pt, 2)
	cir.TrueColor = col
	ZoomAll

	Dim retCol As AcadAcCmColor
	Set retCol = cir.TrueColor

	If col.ColorMethod = AutoCAD.acColorMethodByRGB Then
	MsgBox "Closest ColorIndex=" & col.ColorIndex
	End If

End Sub