CSharp启动AutoCAD

CSharp启动AutoCAD

一 我们可以通过AutoCAD安装以后提供的COM接口启动AutoCAD。

COM组件为：
AutoCAD/ ObjectDBX Common 17.1 Type Library ( Autodesk.AutoCAD.Interop.Common.dll ).
AutoCAD 2009 Type Library (Autodesk.AutoCAD.Interop.dll)     

二 方法一

         public   static   void  Way1()
         {
            const string progID = "AutoCAD.Application.17.1";
            AcadApplication acApp = null;

            try
            {
                acApp = (AcadApplication)Marshal.GetActiveObject(progID);

            }
            catch
            {
                try
                {
                    Type acType = Type.GetTypeFromProgID(progID);
                    acApp = (AcadApplication)Activator.CreateInstance(acType,true);
                }
                catch
                {
                    MessageBox.Show("Cannot create object of type \"" +progID + "\"");
                }
            }
            if (acApp != null)
            {
                // By the time this is reached AutoCAD is fully
                // functional and can be interacted with through code
                acApp.Visible = true;
                acApp.ActiveDocument.SendCommand("_MYCOMMAND ");
            }        
        }

三 方法二

         public   static   void  Way2()
         {
            const string progID = "AutoCAD.Application.17.1";
            const string exePath = @"E:\Program Files\Autodesk\ACADM 2009\acad.exe";
            AcadApplication acApp = null;

            // Let's first check we don't have AutoCAD already running
            try
            {
                acApp =(AcadApplication)Marshal.GetActiveObject(progID);
            }
            catch { }
            if (acApp != null)
            {
                MessageBox.Show("An instance of AutoCAD is already running.");
            }
            else
            {
                try
                {
                    // Use classes from the System.Diagnostics namespace
                    // to launch our AutoCAD process with command-line
                    // options
                    ProcessStartInfo psi = new ProcessStartInfo(exePath, "/p myprofile");
                    psi.WorkingDirectory = @"c:\temp";
                    Process pr = Process.Start(psi);

                    // Wait for AutoCAD to be ready for input
                    // This doesn't wait until AutoCAD is ready
                    // to receive COM requests, it seems
                    pr.WaitForInputIdle();

                    // Connect to our process using COM
                    // We're going to loop infinitely until we get the
                    // AutoCAD object.          
                    // A little risky, unless we implement a timeout
                    // mechanism or let the user cancel

                    while (acApp == null)
                    {
                        try
                        {
                            acApp = (AcadApplication)Marshal.GetActiveObject(progID);
                        }
                        catch
                        {
                            // Let's let the application check its message
                            // loop, in case the user has exited or cancelled
                            Application.DoEvents();
                        }

                    }

                }

                catch (Exception ex)
                {
                    MessageBox.Show("Cannot create or attach to AutoCAD object: "+ ex.Message);
                }
            }

            if (acApp != null)
            {
                acApp.Visible = true;
                acApp.ActiveDocument.SendCommand("_MYCOMMAND ");
            }

        }

四 当然也可以使用C++去调用COM接口。