ContourFilter example for C++ 4.0 and later

   ILEADRasterDlgKrn_U  *  m_pRasterKrnDlg;

   m_pRasterKrnDlg = NULL;

   CoCreateInstance(CLSID_LEADRasterDlgKrn_U,

                         NULL,

                         CLSCTX_ALL,

                         IID_ILEADRasterDlgKrn_U,

                         (void**)&m_pRasterKrnDlg);

   m_pRasterKrnDlg->InitDlg(INIT_WITH_COLOR);

   ILEADRasterDlgImgEfx_U* m_pRasterImgEfxDlg;

   m_pRasterImgEfxDlg =NULL;

   CoCreateInstance(CLSID_LEADRasterDlgImgEfx_U,

                         NULL,

                         CLSCTX_ALL,

                         IID_ILEADRasterDlgImgEfx_U,

                         (void**)&m_pRasterImgEfxDlg);   

   short nRet;

   m_Lead1.Load("c:\\test.bmp",24,1,1);

   m_pRasterImgEfxDlg->put_MaxError(5);

   m_pRasterImgEfxDlg->put_DeltaDirection(5);

   m_pRasterImgEfxDlg->put_Threshold(5);

   m_pRasterImgEfxDlg->put_ContourOption(CONTOUR_LINK_COLOR);

   m_pRasterImgEfxDlg->put_ContourOptionFlags(CONTOURFILTER_SHOW_OPTION_ALL);

   m_pRasterImgEfxDlg->put_UIFlags(CONTOURFILTER_SHOW_PREVIEW + CONTOURFILTER_SHOW_DELTADIRECTION + CONTOURFILTER_SHOW_MAXIMUMERROR + CONTOURFILTER_SHOW_OPTION + CONTOURFILTER_SHOW_THRESHOLD + CONTOURFILTER_SHOW_TOOL_ZOOMLEVEL);

   m_pRasterImgEfxDlg->put_Bitmap(m_Lead1.GetBitmap());

   nRet = m_pRasterImgEfxDlg->ShowContourFilterDlg((long)this->m_hWnd);

   nRet = m_Lead1.ContourFilter(m_pRasterImgEfxDlg->Threshold, m_pRasterImgEfxDlg->DeltaDirection, m_pRasterImgEfxDlg->MaxError, 2/*m_pRasterImgEfxDlg->get_ContourOption(0)*/);

   m_pRasterImgEfxDlg->put_Bitmap(0);