Inter-process communication allows you to create dynamic workflows between software applications. This can be achieved in a variety of ways (COM, Remoting…)
The example below provides some basic code for establishing a COM connection to AutoCAD using VB.NET. After a connection is established, it is then possible to send remote commands to the AutoCAD command-line as well as automate other features in the program.
SEND A COMMAND
Imports System Imports System.Runtime.InteropServices Imports Autodesk.AutoCAD.Interop 'the correct progID for AutoCAD 2010 is "AutoCAD.Application.18" Dim progID As String = "AutoCAD.Application.18" Dim acApp As AcadApplication acApp = Marshal.GetActiveObject(progID) acApp.Visible = True ' you can now send commands to the the AutoCAD command-line acApp.ActiveDocument.SendCommand()