Get Whether Feature is Frozen Example (C#)

//---------------------------------------------------------------------------
// Preconditions:
// 1. Open a part or assembly.
// 2. Select a frozen feature in the FeatureManager design tree.
//
// Postconditions: Inspect the Immediate Window.
//-----------------------------------------------
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 FeatureIsFrozen_CSharp.csproj
{
    partial class SolidWorksMacro
    {

        public void Main()
        {
            ModelDoc2 swModel = default(ModelDoc2);
            SelectionMgr swSelMgr = default(SelectionMgr);
            Feature swFeat = default(Feature);
            bool bRet = false;

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

            bRet = swFeat.IsFrozen();
            Debug.Print("Feature is frozen? " + bRet);

        }

        public SldWorks swApp;
    }
}