ShowAntiAliasDlg example for C++ Builder

void __fastcall TForm1::ShowAntiAliasDlg1Click(TObject *Sender) 
{
   L_INT nRet; 
   LEADDlgImgEffect1->DlgFlags = DLG_ANTIALIAS_SHOW_PREVIEW |
                        DLG_ANTIALIAS_SHOW_TOOL_ZOOMLEVEL; 

   LEADDlgImgEffect1->LEADImage = LEADImage1; 

   nRet= LEADDlgImgEffect1->ShowAntiAliasDlg ( this ); 
   if ( nRet == SUCCESS_DLG_OK ) 
   {
      LEADImage1->AntiAlias ( LEADDlgImgEffect1->Threshold, 
                              LEADDlgImgEffect1->Dimension, 
                              LEADDlgImgEffect1->AntiAliasFilterType ); 

   }
}