[SHLWAPI] Sync with Wine Staging 3.3. CORE-14434
[reactos.git] / dll / win32 / 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 }