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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #include <stdarg.h>
  23
  24 #include "windef.h"
  25 #include "winbase.h"
  26 #define NO_SHLWAPI_REG
  27 #define NO_SHLWAPI_STREAM
  28 #include "shlwapi.h"
  29 #include "wine/debug.h"
  30
  31 WINE_DEFAULT_DEBUG_CHANNEL(shell);
  32
  33 DECLSPEC_HIDDEN HINSTANCE shlwapi_hInstance = 0;
  34 DECLSPEC_HIDDEN DWORD SHLWAPI_ThreadRef_index = TLS_OUT_OF_INDEXES;
  35
  36 /*************************************************************************
  37  * SHLWAPI {SHLWAPI}
  38  *
  39  * The Shell Light-Weight API dll provides a large number of utility functions
  40  * which are commonly required by Win32 programs. Originally distributed with
  41  * Internet Explorer as a free download, it became a core part of Windows when
  42  * Internet Explorer was 'integrated' into the O/S with the release of Win98.
  43  *
  44  * All functions exported by ordinal are undocumented by MS. The vast majority
  45  * of these are wrappers for Unicode functions that may not exist on early 16
  46  * bit platforms. The remainder perform various small tasks and presumably were
  47  * added to facilitate code reuse amongst the MS developers.
  48  */
  49
  50 /*************************************************************************
  51  * SHLWAPI DllMain
  52  *
  53  * NOTES
  54  *  calling oleinitialize here breaks some apps.
  55  */
  56 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID fImpLoad)
  57 {
  58         TRACE("%p 0x%x %p\n", hinstDLL, fdwReason, fImpLoad);
  59         switch (fdwReason)
  60         {
  61           case DLL_PROCESS_ATTACH:
  62             DisableThreadLibraryCalls(hinstDLL);
  63             shlwapi_hInstance = hinstDLL;
  64             SHLWAPI_ThreadRef_index = TlsAlloc();
  65             break;
  66           case DLL_PROCESS_DETACH:
  67             if (fImpLoad) break;
  68             if (SHLWAPI_ThreadRef_index != TLS_OUT_OF_INDEXES) TlsFree(SHLWAPI_ThreadRef_index);
  69             break;
  70         }
  71         return TRUE;
  72 }
  73
  74 /***********************************************************************
  75  * DllGetVersion [SHLWAPI.@]
  76  *
  77  * Retrieve "shlwapi.dll" version information.
  78  *
  79  * PARAMS
  80  *     pdvi [O] pointer to version information structure.
  81  *
  82  * RETURNS
  83  *     Success: S_OK. pdvi is updated with the version information
  84  *     Failure: E_INVALIDARG, if pdvi->cbSize is not set correctly.
  85  *
  86  * NOTES
  87  *     You may pass either a DLLVERSIONINFO of DLLVERSIONINFO2 structure
  88  *     as pdvi, provided that the size is set correctly.
  89  *     Returns version as shlwapi.dll from IE5.01.
  90  */
  91 HRESULT WINAPI DllGetVersion (DLLVERSIONINFO *pdvi)
  92 {
  93   DLLVERSIONINFO2 *pdvi2 = (DLLVERSIONINFO2*)pdvi;
  94
  95   TRACE("(%p)\n",pdvi);
  96
  97   if (!pdvi)
  98     return E_INVALIDARG;
  99
 100   switch (pdvi2->info1.cbSize)
 101   {
 102   case sizeof(DLLVERSIONINFO2):
 103     pdvi2->dwFlags = 0;
 104     pdvi2->ullVersion = MAKEDLLVERULL(6, 0, 2800, 1612);
 105     /* Fall through */
 106   case sizeof(DLLVERSIONINFO):
 107     pdvi2->info1.dwMajorVersion = 6;
 108     pdvi2->info1.dwMinorVersion = 0;
 109     pdvi2->info1.dwBuildNumber = 2800;
 110     pdvi2->info1.dwPlatformID = DLLVER_PLATFORM_WINDOWS;
 111     return S_OK;
 112  }
 113
 114  WARN("pdvi->cbSize = %d, unhandled\n", pdvi2->info1.cbSize);
 115  return E_INVALIDARG;
 116 }