Using Programming Languages other than VBA

Private Sub AcadDocument_BeginLisp(ByVal FirstLine As String)
	' This example intercepts a drawing BeginLisp event.
	'
	' This event is triggered when a drawing receives
	' a request to evaluate a LISP expression.
	'
	' To trigger this example event: Start the evaluation of a LISP expression

	' Use the "FirstLine" variable to help the user determine which LISP expression is running
	MsgBox "A LISP expression has just started to be evaluated.  The first line of the expression is: " & FirstLine

End Sub