# RefCounting.cs

    /*=========================================================================

      Program: GDCM (Grassroots DICOM). A DICOM library
      Module:  $URL$

      Copyright (c) 2006-2010 Mathieu Malaterre
      All rights reserved.
      See Copyright.txt or http://gdcm.sourceforge.net/Copyright.html for details.

         This software is distributed WITHOUT ANY WARRANTY; without even
         the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
         PURPOSE.  See the above copyright notice for more information.

    =========================================================================*/
    using Kitware.VTK;
    using vtkgdcm;

    /*
     * this is not so much an example but simply a test to make sure cstor / dstor work as expected
     * and call the ::New and ->Delete() of VTK style.
     */
    public class RefCounting
    {
      public static int Main(string[] args)
        {
        vtkGDCMTesting testing1 = vtkGDCMTesting.New();
        vtkGDCMTesting testing2 = new vtkGDCMTesting(); // just in case people do not read STYLE documentation

        vtkGDCMImageReader reader1 = vtkGDCMImageReader.New();
        vtkGDCMImageReader reader2 = new vtkGDCMImageReader();

        vtkGDCMImageWriter writer1 = vtkGDCMImageWriter.New();
        vtkGDCMImageWriter writer2 = new vtkGDCMImageWriter();

        using (vtkGDCMTesting testing3 = new vtkGDCMTesting())
          {
          System.Console.Write( "GetReferenceCount: " + testing1.GetReferenceCount() + "\n");
          System.Console.Write( "GetReferenceCount: " + testing2.GetReferenceCount() + "\n");
          System.Console.Write( "GetReferenceCount: " + testing3.GetReferenceCount() + "\n");
          }

        using (vtkGDCMImageReader reader3 = new vtkGDCMImageReader())
          {
          System.Console.Write( "GetReferenceCount: " + reader3.GetReferenceCount() + "\n");
          }

        using (vtkGDCMImageWriter writer3 = vtkGDCMImageWriter.New())
          {
          System.Console.Write( "GetReferenceCount: " + writer3.GetReferenceCount() + "\n");
          }

        // C# destructor will call ->Delete on all C++ object as expected.
        return 0;
        }
    }