Using Programming Languages other than VBA

Sub Visible()
	' This example creates a line in model space.
	' It then turns visibility of the line on or off, depending
	' on the user's choice.

	Dim lineObj As AcadLine
	Dim startPoint(0 To 2) As Double
	Dim endPoint(0 To 2) As Double
	' Create the line
	startPoint(0) = 2#: startPoint(1) = 2#: startPoint(2) = 0#
	endPoint(0) = 4#: endPoint(1) = 4#: endPoint(2) = 0#
	Set lineObj = ThisDrawing.ModelSpace.AddLine(startPoint, endPoint)
	ZoomAll

	Dim response As Integer
	response = MsgBox("Do you want the new line to be visible?", vbYesNoCancel + vbQuestion)
	Select Case response
	Case vbYes
		lineObj.Visible = True
	Case vbNo
		lineObj.Visible = False
	Case vbCancel
		Exit Sub
	End Select

	ThisDrawing.Regen True
End Sub