Get Fixed Face of Flatten-Bends Feature Example (C#)

//------------------------------------------------------------------
// Preconditions:
// 1. Open a sheet metal part.
// 2. Select a Process-Bends feature in the FeatureManager design
//    tree.
//
// Postconditions:
// 1. Rolls the FeatureManager design tree back to the feature
//    that contains the fixed face of the Process-Bends feature.
// 2. Selects the fixed face of the Process-Bends feature.
// 3. Examine the FeatureManager design tree and graphics area,
//    then press F5.
// 4. Rolls the FeatureManager design tree forward.
//-----------------------------------------------------------------
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 GetFixedFace_CSharp.csproj
{
    partial class SolidWorksMacro
    {

        public void Main()
        {
            ModelDoc2 swModel = default(ModelDoc2);
            SelectionMgr swSelMgr = default(SelectionMgr);
            Feature swFeat = default(Feature);
            BendsFeatureData swBends = default(BendsFeatureData);
            Face2 swFace = default(Face2);
            Entity swEntity = default(Entity);
            bool bRet = false;

            swModel = (ModelDoc2)swApp.ActiveDoc;
            swSelMgr = (SelectionMgr)swModel.SelectionManager;
            swFeat = (Feature)swSelMgr.GetSelectedObject6(1, -1);
            swBends = (BendsFeatureData)swFeat.GetDefinition();

            // Roll back to access the Process-Bends feature data
            bRet = swBends.AccessSelections(swModel, null);

            swFace = (Face2)swBends.GetFixedFace();
            swEntity = (Entity)swFace;
            bRet = swEntity.Select4(false, null);

            System.Diagnostics.Debugger.Break();
            // Press F5

            // Cancel any changes made
            swBends.ReleaseSelectionAccess();

        }

        public SldWorks swApp;
    }
}