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_hversion = 0;
  39
  40 DWORD SHLWAPI_ThreadRef_index = -1;
  41
  42 /*************************************************************************
  43  * SHLWAPI {SHLWAPI}
  44  *
  45  * The Shell Light-Weight Api dll provides a large number of utility functions
  46  * which are commonly required by Win32 programs. Originally distributed with
  47  * Internet Explorer as a free download, it became a core part of Windows when
  48  * Internet Explorer was 'integrated' into the O/S with the release of Win98.
  49  *
  50  * All functions exported by ordinal are undocumented by MS. The vast majority
  51  * of these are wrappers for Unicode functions that may not exist on early 16
  52  * bit platforms. The remainder perform various small tasks and presumably were
  53  * added to facilitate code reuse amongst the MS developers.
  54  */
  55
  56 /*************************************************************************
  57  * SHLWAPI DllMain
  58  *
  59  * NOTES
  60  *  calling oleinitialize here breaks sone apps.
  61  */
  62 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID fImpLoad)
  63 {
  64         TRACE("%p 0x%lx %p\n", hinstDLL, fdwReason, fImpLoad);
  65         switch (fdwReason)
  66         {
  67           case DLL_PROCESS_ATTACH:
  68             DisableThreadLibraryCalls(hinstDLL);
  69             shlwapi_hInstance = hinstDLL;
  70             SHLWAPI_ThreadRef_index = TlsAlloc();
  71             break;
  72           case DLL_PROCESS_DETACH:
  73             if (SHLWAPI_hshell32)  FreeLibrary(SHLWAPI_hshell32);
  74             if (SHLWAPI_hwinmm)    FreeLibrary(SHLWAPI_hwinmm);
  75             if (SHLWAPI_hcomdlg32) FreeLibrary(SHLWAPI_hcomdlg32);
  76             if (SHLWAPI_hcomctl32) FreeLibrary(SHLWAPI_hcomctl32);
  77             if (SHLWAPI_hmpr)      FreeLibrary(SHLWAPI_hmpr);
  78             if (SHLWAPI_hmlang)    FreeLibrary(SHLWAPI_hmlang);
  79             if (SHLWAPI_hversion)  FreeLibrary(SHLWAPI_hversion);
  80             if (SHLWAPI_ThreadRef_index >= 0) TlsFree(SHLWAPI_ThreadRef_index);
  81             break;
  82         }
  83         return TRUE;
  84 }
  85
  86 /***********************************************************************
  87  * DllGetVersion [SHLWAPI.@]
  88  *
  89  * Retrieve "shlwapi.dll" version information.
  90  *
  91  * PARAMS
  92  *     pdvi [O] pointer to version information structure.
  93  *
  94  * RETURNS
  95  *     Success: S_OK. pdvi is updated with the version information
  96  *     Failure: E_INVALIDARG, if pdvi->cbSize is not set correctly.
  97  *
  98  * NOTES
  99  *     You may pass either a DLLVERSIONINFO of DLLVERSIONINFO2 structure
 100  *     as pdvi, provided that the size is set correctly.
 101  *     Returns version as shlwapi.dll from IE5.01.
 102  */
 103 HRESULT WINAPI SHLWAPI_DllGetVersion (DLLVERSIONINFO *pdvi)
 104 {
 105   DLLVERSIONINFO2 *pdvi2 = (DLLVERSIONINFO2*)pdvi;
 106
 107   TRACE("(%p)\n",pdvi);
 108
 109   switch (pdvi2->info1.cbSize)
 110   {
 111   case sizeof(DLLVERSIONINFO2):
 112     pdvi2->dwFlags = 0;
 113     pdvi2->ullVersion = MAKEDLLVERULL(5, 0, 2314, 0);
 114     /* Fall through */
 115   case sizeof(DLLVERSIONINFO):
 116     pdvi2->info1.dwMajorVersion = 5;
 117     pdvi2->info1.dwMinorVersion = 0;
 118     pdvi2->info1.dwBuildNumber = 2314;
 119     pdvi2->info1.dwPlatformID = 1000;
 120     return S_OK;
 121  }
 122  if (pdvi)
 123    WARN("pdvi->cbSize = %ld, unhandled\n", pdvi2->info1.cbSize);
 124  return E_INVALIDARG;
 125 }