1 /*****************************************************************************
2 * plugin.c : Low-level dynamic library handling
3 *****************************************************************************
4 * Copyright (C) 2001-2011 VLC authors and VideoLAN
6 * Authors: Sam Hocevar <sam@zoy.org>
7 * Ethan C. Baldridge <BaldridgeE@cadmus.com>
8 * Hans-Peter Jansen <hpj@urpla.net>
9 * Gildas Bazin <gbazin@videolan.org>
11 * This program is free software; you can redistribute it and/or modify it
12 * under the terms of the GNU Lesser General Public License as published by
13 * the Free Software Foundation; either version 2.1 of the License, or
14 * (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU Lesser General Public License for more details.
21 * You should have received a copy of the GNU Lesser General Public License
22 * along with this program; if not, write to the Free Software Foundation,
23 * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
24 *****************************************************************************/
30 #include <vlc_common.h>
31 #include <vlc_charset.h>
32 #include "modules/modules.h"
36 char *vlc_dlerror(void)
39 int i
= 0, i_error
= GetLastError();
41 FormatMessageW( FORMAT_MESSAGE_FROM_SYSTEM
| FORMAT_MESSAGE_IGNORE_INSERTS
,
42 NULL
, i_error
, MAKELANGID (LANG_NEUTRAL
, SUBLANG_DEFAULT
),
45 /* Go to the end of the string */
46 while( !wmemchr( L
"\r\n\0", wmsg
[i
], 3 ) )
49 snwprintf( wmsg
+ i
, 256 - i
, L
" (error %i)", i_error
);
50 return FromWide( wmsg
);
53 void *vlc_dlopen(const char *psz_file
, bool lazy
)
55 wchar_t *wfile
= ToWide (psz_file
);
59 HMODULE handle
= NULL
;
62 if (SetThreadErrorMode (SEM_FAILCRITICALERRORS
, &mode
) != 0)
64 handle
= LoadLibraryExW(wfile
, NULL
, LOAD_LIBRARY_SEARCH_SYSTEM32
);
65 SetThreadErrorMode (mode
, NULL
);
68 handle
= LoadPackagedLibrary( wfile
, 0 );
76 int vlc_dlclose(void *handle
)
78 FreeLibrary( handle
);
82 void *vlc_dlsym(void *handle
, const char *psz_function
)
84 return (void *)GetProcAddress(handle
, psz_function
);