text: // stdafx.h : include file for standard system include files,
  // or project specific include files that are used frequently, but
  // are changed infrequently
  
  #pragma once
  
  #ifndef VC_EXTRALEAN
  #define VC_EXTRALEAN            // Exclude rarely-used stuff from Windows headers
  #endif
  
  #ifndef WINVER				// Allow use of features specific to Windows 95 and Windows NT 4 or later.
  //#define WINVER 0x0400		// Change this to the appropriate value to target Windows 98 and Windows 2000 or later.
  #define WINVER 0x0501
  #endif
  
  #ifndef _WIN32_WINNT
  //#define _WIN32_WINNT 0x0501
  #endif
  
  #define WIN32_LEAN_AND_MEAN		// Exclude rarely-used stuff from Windows headers
  #define _ATL_CSTRING_EXPLICIT_CONSTRUCTORS      // some CString constructors will be explicit
  
  #include <afxwin.h>         // MFC core and standard components
  //#include <afxtempl.h>
  //#include <atlstr.h>
  
  //#include <windows.h>
  
  //#include <atlbase.h>
  //extern CComModule _Module;
  //#include <atlcom.h>
  
  #include <comdef.h>
  
  #include <vector>
  #include <map>
  #include <set>
  #include <bitset>
  
  #include "opcda.h"