mfc_loader.h

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#ifndef MFC_LIBRARY_LOADER_CLASS
#define MFC_LIBRARY_LOADER_CLASS

/*****************************************************************************\
*                                                                             *
*  Name   : mfc_library_loader                                                *
*  Author : Chris Koeritz                                                     *
*                                                                             *
*  Purpose:                                                                   *
*                                                                             *
*    Supports using MFC dynamic libraries.  The base class only supports      *
*  non-MFC DLLs through the Win32 API library functions.  There is potential  *
*  for corruption of MFC globals when loading an MFC DLL in a multi-threaded  *
*  program, and hence there must be a special loader that uses AfxLoadLibrary *
*  and AfxFreeLibrary instead of the API versions.                            *
*                                                                             *
*******************************************************************************
* Copyright (c) 2000-$now By Author.  This program is free software; you can  *
* redistribute it and/or modify it under the terms of the GNU General Public  *
* License as published by the Free Software Foundation; either version 2 of   *
* the License or (at your option) any later version.  This is online at:      *
*     http://www.fsf.org/copyleft/gpl.html                                    *
* Please send any updates to: fred@gruntose.com                               *
\*****************************************************************************/

#include "mfc_dll.h"

#include <opsystem/dynamic_loader.h>

namespace library_plugins {

  class MFC_EXTENSIONS_CLASS_STYLE mfc_library_loader
  : public dynamic_library_loader
  { 
  public:
    mfc_library_loader(const istring &dll_name);
      // loads the DLL with the "dll_name".  the loaded() function returns true
      // if the DLL was found and attached to.

    virtual ~mfc_library_loader();

  protected:
    virtual void *load_library(const char *to_load);
    virtual void free_library(void *to_free);
      // loads MFC DLLs appropriately for their thread issues.
  };

} // namespace.

#endif

---