Export Part to DWG Example (C#)

//---------------------------------------------------------------------------
// Preconditions: Copy public_documents\samples\tutorial\api\2012-sm.sldprt to
// c:\temp.
//
// Postconditions:
// 1. Creates three DWG files containing:
//    * Current annotation view
//    * Front annotation view
//    * flat-pattern sheet metal
// 2. Locate and open the just-created DWG files in c:\temp.
//--------------------------------------------------------------------------
using SolidWorks.Interop.sldworks;
using SolidWorks.Interop.swconst;
using System.Runtime.InteropServices;
using System;
using System.Diagnostics;
namespace ExportToDWG2_CSharp.csproj
{
    partial class SolidWorksMacro
    {

        ModelDoc2 swModel;
        PartDoc swPart;
        string sModelName;
        string sPathName;
        object varAlignment;
        double[] dataAlignment = new double[12];
        object varViews;
        string[] dataViews = new string[2];

        int options;

        public void Main()
        {
            swModel = (ModelDoc2)swApp.ActiveDoc;

            sModelName = swModel.GetPathName();
            sPathName = swModel.GetPathName();
            sPathName = sPathName.Substring(0, sPathName.Length - 6);
            sPathName = sPathName + "dwg";

            swPart = (PartDoc)swModel;

            dataAlignment[0] = 0.0;
            dataAlignment[1] = 0.0;
            dataAlignment[2] = 0.0;
            dataAlignment[3] = 1.0;
            dataAlignment[4] = 0.0;
            dataAlignment[5] = 0.0;
            dataAlignment[6] = 0.0;
            dataAlignment[7] = 1.0;
            dataAlignment[8] = 0.0;
            dataAlignment[9] = 0.0;
            dataAlignment[10] = 0.0;
            dataAlignment[11] = 1.0;

            varAlignment = dataAlignment;

            dataViews[0] = "*Current";
            dataViews[1] = "*Front";

            varViews = dataViews;

            //Export each annotation view to a separate drawing file
            swPart.ExportToDWG2(sPathName, sModelName, (int)swExportToDWG_e.swExportToDWG_ExportAnnotationViews, false, varAlignment, false, false, 0, varViews);

            //Export sheet metal to a single drawing file
            options = 1;  //include flat-pattern geometry
            swPart.ExportToDWG2(sPathName, sModelName, (int)swExportToDWG_e.swExportToDWG_ExportSheetMetal, true, varAlignment, false, false, options, null);

        }


        public SldWorks swApp;

    }

}