Using Programming Languages other than VBA

Sub Example_DeleteConfiguration()
	' This example creates a new viewport and splits
	' the viewport into 4 windows.
	' It then deletes the viewport configuration
	Dim oldViewport As AcadViewport
	Set oldViewport = ThisDrawing.ActiveViewport
	 
	' Create a new viewport and make it active
	Dim newViewport As AcadViewport
	Set newViewport = ThisDrawing.Viewports.Add("TESTVIEWPORT")
	ThisDrawing.ActiveViewport = newViewport

	' Split the viewport in 4 windows
	newViewport.Split acViewport4

	' Make the newly split viewport active
	ThisDrawing.ActiveViewport = newViewport
	MsgBox "The viewport configuration split into 4 windows."

	' Delete the viewport configuration
	ThisDrawing.ActiveViewport = oldViewport
	ThisDrawing.Viewports.DeleteConfiguration ("TESTVIEWPORT")
	ThisDrawing.Regen acAllViewports
	MsgBox "The viewport configuration has been deleted."
End Sub