dlls/shlwapi/shlwapi_main.c

   1 /*
   2  * SHLWAPI initialisation
   3  *
   4  *  Copyright 1998 Marcus Meissner
   5  *  Copyright 1998 Juergen Schmied (jsch)
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  */
  21
  22 #include "winbase.h"
  23 #include "winerror.h"
  24 #include "wine/debug.h"
  25 #define NO_SHLWAPI_REG
  26 #define NO_SHLWAPI_STREAM
  27 #include "shlwapi.h"
  28
  29 WINE_DEFAULT_DEBUG_CHANNEL(shell);
  30
  31 HINSTANCE shlwapi_hInstance = 0;
  32 HMODULE SHLWAPI_hshell32 = 0;
  33 HMODULE SHLWAPI_hwinmm = 0;
  34 HMODULE SHLWAPI_hcomdlg32 = 0;
  35 HMODULE SHLWAPI_hcomctl32 = 0;
  36 HMODULE SHLWAPI_hmpr = 0;
  37 HMODULE SHLWAPI_hmlang = 0;
  38 HMODULE SHLWAPI_hurlmon = 0;
  39 HMODULE SHLWAPI_hversion = 0;
  40
  41 DWORD SHLWAPI_ThreadRef_index = TLS_OUT_OF_INDEXES;
  42
  43 /*************************************************************************
  44  * SHLWAPI {SHLWAPI}
  45  *
  46  * The Shell Light-Weight Api dll provides a large number of utility functions
  47  * which are commonly required by Win32 programs. Originally distributed with
  48  * Internet Explorer as a free download, it became a core part of Windows when
  49  * Internet Explorer was 'integrated' into the O/S with the release of Win98.
  50  *
  51  * All functions exported by ordinal are undocumented by MS. The vast majority
  52  * of these are wrappers for Unicode functions that may not exist on early 16
  53  * bit platforms. The remainder perform various small tasks and presumably were
  54  * added to facilitate code reuse amongst the MS developers.
  55  */
  56
  57 /*************************************************************************
  58  * SHLWAPI DllMain
  59  *
  60  * NOTES
  61  *  calling oleinitialize here breaks sone apps.
  62  */
  63 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID fImpLoad)
  64 {
  65         TRACE("%p 0x%lx %p\n", hinstDLL, fdwReason, fImpLoad);
  66         switch (fdwReason)
  67         {
  68           case DLL_PROCESS_ATTACH:
  69             DisableThreadLibraryCalls(hinstDLL);
  70             shlwapi_hInstance = hinstDLL;
  71             SHLWAPI_ThreadRef_index = TlsAlloc();
  72             break;
  73           case DLL_PROCESS_DETACH:
  74             if (SHLWAPI_hshell32)  FreeLibrary(SHLWAPI_hshell32);
  75             if (SHLWAPI_hwinmm)    FreeLibrary(SHLWAPI_hwinmm);
  76             if (SHLWAPI_hcomdlg32) FreeLibrary(SHLWAPI_hcomdlg32);
  77             if (SHLWAPI_hcomctl32) FreeLibrary(SHLWAPI_hcomctl32);
  78             if (SHLWAPI_hmpr)      FreeLibrary(SHLWAPI_hmpr);
  79             if (SHLWAPI_hmlang)    FreeLibrary(SHLWAPI_hmlang);
  80             if (SHLWAPI_hurlmon)   FreeLibrary(SHLWAPI_hurlmon);
  81             if (SHLWAPI_hversion)  FreeLibrary(SHLWAPI_hversion);
  82             if (SHLWAPI_ThreadRef_index != TLS_OUT_OF_INDEXES) TlsFree(SHLWAPI_ThreadRef_index);
  83             break;
  84         }
  85         return TRUE;
  86 }
  87
  88 /***********************************************************************
  89  * DllGetVersion [SHLWAPI.@]
  90  *
  91  * Retrieve "shlwapi.dll" version information.
  92  *
  93  * PARAMS
  94  *     pdvi [O] pointer to version information structure.
  95  *
  96  * RETURNS
  97  *     Success: S_OK. pdvi is updated with the version information
  98  *     Failure: E_INVALIDARG, if pdvi->cbSize is not set correctly.
  99  *
 100  * NOTES
 101  *     You may pass either a DLLVERSIONINFO of DLLVERSIONINFO2 structure
 102  *     as pdvi, provided that the size is set correctly.
 103  *     Returns version as shlwapi.dll from IE5.01.
 104  */
 105 HRESULT WINAPI SHLWAPI_DllGetVersion (DLLVERSIONINFO *pdvi)
 106 {
 107   DLLVERSIONINFO2 *pdvi2 = (DLLVERSIONINFO2*)pdvi;
 108
 109   TRACE("(%p)\n",pdvi);
 110
 111   switch (pdvi2->info1.cbSize)
 112   {
 113   case sizeof(DLLVERSIONINFO2):
 114     pdvi2->dwFlags = 0;
 115     pdvi2->ullVersion = MAKEDLLVERULL(5, 0, 2314, 0);
 116     /* Fall through */
 117   case sizeof(DLLVERSIONINFO):
 118     pdvi2->info1.dwMajorVersion = 5;
 119     pdvi2->info1.dwMinorVersion = 0;
 120     pdvi2->info1.dwBuildNumber = 2314;
 121     pdvi2->info1.dwPlatformID = 1000;
 122     return S_OK;
 123  }
 124  if (pdvi)
 125    WARN("pdvi->cbSize = %ld, unhandled\n", pdvi2->info1.cbSize);
 126  return E_INVALIDARG;
 127 }