/*
 * $Id$
 */

/*
 * Harbour Project source code:
 * Dynamic link libraries management functions
 *
 * Copyright 2001 Antonio Linares <alinares@fivetech.com>
 * www - http://www.harbour-project.org
 *
 * 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, with one exception:
 *
 * 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, or (at your option)
 * any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this software; see the file COPYING.  If not, write to
 * the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
 * Boston, MA 02111-1307 USA (or visit the web site http://www.gnu.org/).
 *
 * As a special exception, the Harbour Project gives permission for
 * additional uses of the text contained in its release of Harbour.
 *
 * The exception is that, if you link the Harbour libraries with other
 * files to produce an executable, this does not by itself cause the
 * resulting executable to be covered by the GNU General Public License.
 * Your use of that executable is in no way restricted on account of
 * linking the Harbour library code into it.
 *
 * This exception does not however invalidate any other reasons why
 * the executable file might be covered by the GNU General Public License.
 *
 * This exception applies only to the code released by the Harbour
 * Project under the name Harbour.  If you copy code from other
 * Harbour Project or Free Software Foundation releases into a copy of
 * Harbour, as the General Public License permits, the exception does
 * not apply to the code that you add in this way.  To avoid misleading
 * anyone as to the status of such modified files, you must delete
 * this exception notice from them.
 *
 * If you write modifications of your own for Harbour, it is your choice
 * whether to permit this exception to apply to your modifications.
 * If you do not wish that, delete this exception notice.
 *
 */

#define HB_OS_WIN_32_USED

#include "hbapi.h"
#include "hbstack.h"
#include "hbvm.h"

HB_FUNC( LIBLOAD )
{
#if defined(HB_OS_WIN_32)
   {
      hb_retnl( ( long ) LoadLibrary( hb_parc( 1 ) ) );
   }
#else
   {
      hb_retnl( 0 );
   }
#endif
}

HB_FUNC( LIBFREE )
{
#if defined(HB_OS_WIN_32)
   {
      hb_retl( FreeLibrary( ( HMODULE ) hb_parnl( 1 ) ) );
   }
#else
   {
      hb_retl( FALSE );
   }
#endif
}

/* Executes a Harbour pcode dynamically loaded DLL function or procedure
 * Syntax: HB_libDo( <cFuncName> [,<params...>] ) --> [<uResult>]
 */

HB_FUNC( HB_LIBDO )
{
   char *szName = hb_strupr( hb_strdup( hb_parc( 1 ) ) );
   PHB_DYNS pDynSym = hb_dynsymFind( hb_strupr( hb_parc( 1 ) ) );

   if( pDynSym )
   {
      USHORT uiPCount = hb_pcount();
      USHORT uiParam;

      hb_vmPushSymbol( pDynSym->pSymbol );
      hb_vmPushNil();

      /* same logic here as from HB_FUNC( EVAL ) */
      for( uiParam = 2; uiParam <= uiPCount; uiParam++ )
      {
         hb_vmPush( hb_stackItemFromBase( uiParam ) );
      }

      hb_vmDo( uiPCount - 1 );
   }
   hb_xfree( szName );
}