Modifying AutoCAD support Path through .NET

By Virupaksha Aithal

You can use AutoCAD ActiveX API to manipulate the AutoCAD support path. Refer below code. As usual below code uses late binding technique while accessing ActiveX API.

[CommandMethod("AddSupportPath")]

static public void AddSupportPath()

{

 

    object acadObject = Application.AcadApplication;

 

    object preferences =

            acadObject.GetType().InvokeMember("Preferences",

            BindingFlags.GetProperty,

            null, acadObject, null);

 

    //get the files

    object files =

            preferences.GetType().InvokeMember("Files",

            BindingFlags.GetProperty,

            null, preferences, null);

 

    //get the support path SupportPath

    string supportPath =

            (string)files.GetType().InvokeMember("SupportPath",

            BindingFlags.GetProperty,

            null, files, null);

 

    Document doc = Application.DocumentManager.MdiActiveDocument;

    Editor ed = doc.Editor;

 

    if (!supportPath.Contains("C:\\BatchPublish"))

    {

        supportPath = supportPath + ";" + "C:\\BatchPublish";

 

        object[] dataArry = new object[1];

        dataArry[0] = supportPath;

        files.GetType().InvokeMember("SupportPath",

                         BindingFlags.SetProperty,

                         null, files, dataArry);

 

        ed.WriteMessage(supportPath + "\n");

    }

    else

    {

        ed.WriteMessage("Support path already present\n");

    }

 

}