Split FeatureManager Design Tree and Position Splitter (C#)

//----------------------------------------------------------
// Preconditions:
// 1. In the IDE, reference Microsoft Calendar Control's
//    ActiveX control file:
//    a. Click Project > Add Reference > Browse tab.
//    b. Browse to:
//       c:\Program Files\Microsoft Office\Office12\MSCAL.OCX
//       and click OK.
// 2. Specified part document and bitmap exist.
//
// Postconditions:
// 1. FeatureManager design tree is split, and the splitter is
//    below the FeatureManager design tree to which the
//    tab was added. Drag the splitter to verify.
// 2. Interactively close the part document.
// 3. Interactively initialize test to 1 in the macro.
// 4. Rerun the macro.
// 5. FeatureManager design tree is split, and the splitter is
//    above the FeatureManager design tree to which the
//    tab was added. Drag the splitter to verify.
//
// NOTE: Because the part document is used elsewhere,
// do not save any changes when closing it.
//----------------------------------------------------------
using SolidWorks.Interop.sldworks;
using SolidWorks.Interop.swconst;
using MSACAL;
using System;

namespace FeatureManagerSplitterPositionModelDoc2CSharp.csproj
{
    partial class SolidWorksMacro
    {
        public void Main()
        {
            const string iconSmall = "C:\\Program Files\\SOLIDWORKS Corp\\SOLIDWORKS\\data\\user macro icons\\button.bmp";

            ModelDoc2 swModel = default(ModelDoc2);
            ModelViewManager swModViewMgr = default(ModelViewManager);
            FeatMgrView swFeatMgrTabTop = default(FeatMgrView);
            FeatMgrView swFeatMgrTabBtm = default(FeatMgrView);
            MSACAL.Calendar ctrlTop = default(MSACAL.Calendar);
            MSACAL.Calendar ctrlBtm = default(MSACAL.Calendar);
            string fileName = null;
            int errors = 0;
            int warnings = 0;
            int activePane = 0;
            int test = 0;

            fileName = "c:\\Program Files\\SOLIDWORKS Corp\\SOLIDWORKS\\samples\\tutorial\\fillets\\knob.sldprt";
            swModel = (ModelDoc2)swApp.OpenDoc6(fileName, (int)swDocumentTypes_e.swDocPART, (int)swOpenDocOptions_e.swOpenDocOptions_Silent, "", ref errors, ref warnings);
            swModViewMgr = (ModelViewManager)swModel.ModelViewManager;

            if (test == 0)
            {
                // FeatureManager design tree is split, and the splitter is
                // below the FeatureManager design tree to which the
                // tab was added
                swFeatMgrTabTop = (FeatMgrView)swModViewMgr.CreateFeatureMgrControl2(iconSmall, "MSCAL.Calendar", "", "Top tab ToolTip", (int)swFeatMgrPane_e.swFeatMgrPaneTop);
                ctrlTop = (MSACAL.Calendar)swFeatMgrTabTop.GetControl();
                swModel.FeatureManagerSplitterPosition = 0.0;
                activePane = swFeatMgrTabTop.ActivateView();
            }
            else
            {
                // FeatureManager design tree is split, and the splitter is
                // above the FeatureManager design tree to which the
                // tab was added
                swFeatMgrTabBtm = (FeatMgrView)swModViewMgr.CreateFeatureMgrControl2(iconSmall, "MSCAL.Calendar", "", "Bottom tab ToolTip", (int)swFeatMgrPane_e.swFeatMgrPaneBottom);
                ctrlBtm = (MSACAL.Calendar)swFeatMgrTabBtm.GetControl();
                swModel.FeatureManagerSplitterPosition = 1.0;
                activePane = swFeatMgrTabBtm.ActivateView();
            }
        }

        /// <summary>
        /// The SldWorks swApp variable is pre-assigned for you.
        /// </summary>

        public SldWorks swApp;

    }
}