Get Sheet Metal Feature Data Example (C#)

//---------------------------------------------------------------------------
// Preconditions:
// 1. Open a sheet metal part created in SOLIDWORKS 2013 or later.
// 2. Open an Immediate window.
//
// Postconditions:
// 1. Inspect the Immediate window to see whether a fixed face reference is selected.
// 2. Inspect the selection in the graphics window.
// 3. Press F5 to finish the macro.
//----------------------------------------------------------------------------
using Microsoft.VisualBasic;
using System;
using System.Collections;
using System.Collections.Generic;
using System.Data;
using System.Diagnostics;
using SolidWorks.Interop.sldworks;
using SolidWorks.Interop.swconst;
using System.Runtime.InteropServices;
namespace GetTemplateSheetMetal_CSharp.csproj
{
    partial class SolidWorksMacro
    {

        public void Main()
        {
            ModelDoc2 swModel = default(ModelDoc2);
            ModelDocExtension swModelExt = default(ModelDocExtension);
            SelectData swSelData = null;
            Feature swSheetMetalTemplFeature = default(Feature);
            SheetMetalFeatureData swSheetMetal = default(SheetMetalFeatureData);
            Face2 swFixedFace = default(Face2);
            Entity swEntity = default(Entity);
            bool bRet = false;

            swModel = (ModelDoc2)swApp.ActiveDoc;
            swModelExt = swModel.Extension;

            swSheetMetalTemplFeature = (Feature)swModelExt.GetTemplateSheetMetal();
            swSheetMetal = (SheetMetalFeatureData)swSheetMetalTemplFeature.GetDefinition();

            // Roll back the model
            bRet = swSheetMetal.AccessSelections(swModel, null);
            swFixedFace = (Face2)swSheetMetal.FixedReference;

            if ((swFixedFace != null))
            {
                Debug.Print("A fixed face or fixed edge is selected.");
                swEntity = (Entity)swFixedFace;
                bRet = swEntity.Select4(false, swSelData);
                System.Diagnostics.Debugger.Break();
            }
            else
            {
                // A fixed face or fixed edge is not required,
                // so Null is a valid value
                Debug.Print("There is no fixed face or fixed edge in this sheet metal part.");
            }

            // Cancel changes and roll forward the model
            swSheetMetal.ReleaseSelectionAccess();
        }

        public SldWorks swApp;
    }
}