Create GTol Composite Frame Example (C#)

//---------------------------------------------------------------------------
// Preconditions:
// 1. Open a document with a geometric tolerance (GTol) whose first two
//    frames have the same symbol.
// 2. Select the GTol in the graphics area.
// 3. Open the Immediate window.
//
// Postconditions:
// 1. Creates a composite frame for the symbol in the graphics area.
// 2. Examine the graphics area and Immediate window.
//----------------------------------------------------------------------------

using SolidWorks.Interop.sldworks;
using SolidWorks.Interop.swconst;
using System.Runtime.InteropServices;
using System;
using System.Diagnostics;

namespace GetSetCompositeFrame_CSharp.csproj
{
    partial class SolidWorksMacro
    {

        SelectionMgr selMgr;
        ModelDoc2 Part;
        Gtol gtol;

        public void Main()
        {
            Part = (ModelDoc2)swApp.ActiveDoc;
            selMgr = (SelectionMgr)Part.SelectionManager;
            gtol = (Gtol)selMgr.GetSelectedObject6(1, -1);

            gtol.SetCompositeFrame2(true, 1);
            Debug.Print("Frame 1 is part of a GTol composite frame? " + gtol.GetCompositeFrame2(1));

        }

        public SldWorks swApp;

    }

}