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1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "base/win_util.h" | 5 #include "base/win_util.h" |
6 | 6 |
7 #include <aclapi.h> | 7 #include <aclapi.h> |
8 #include <shobjidl.h> // Must be before propkey. | 8 #include <shobjidl.h> // Must be before propkey. |
9 #include <propkey.h> | 9 #include <propkey.h> |
10 #include <propvarutil.h> | 10 #include <propvarutil.h> |
11 #include <sddl.h> | 11 #include <sddl.h> |
12 #include <shlobj.h> | 12 #include <shlobj.h> |
13 | 13 |
14 #include "base/logging.h" | 14 #include "base/logging.h" |
15 #include "base/win/registry.h" | 15 #include "base/win/registry.h" |
16 #include "base/scoped_handle.h" | 16 #include "base/scoped_handle.h" |
17 #include "base/scoped_ptr.h" | 17 #include "base/scoped_ptr.h" |
18 #include "base/string_util.h" | 18 #include "base/string_util.h" |
19 #include "base/stringprintf.h" | 19 #include "base/stringprintf.h" |
20 #include "base/thread_restrictions.h" | |
21 #include "base/win/windows_version.h" | 20 #include "base/win/windows_version.h" |
22 | 21 |
23 namespace win_util { | 22 namespace win_util { |
24 | 23 |
25 #define SIZEOF_STRUCT_WITH_SPECIFIED_LAST_MEMBER(struct_name, member) \ | 24 #define SIZEOF_STRUCT_WITH_SPECIFIED_LAST_MEMBER(struct_name, member) \ |
26 offsetof(struct_name, member) + \ | 25 offsetof(struct_name, member) + \ |
27 (sizeof static_cast<struct_name*>(NULL)->member) | 26 (sizeof static_cast<struct_name*>(NULL)->member) |
28 #define NONCLIENTMETRICS_SIZE_PRE_VISTA \ | 27 #define NONCLIENTMETRICS_SIZE_PRE_VISTA \ |
29 SIZEOF_STRUCT_WITH_SPECIFIED_LAST_MEMBER(NONCLIENTMETRICS, lfMessageFont) | 28 SIZEOF_STRUCT_WITH_SPECIFIED_LAST_MEMBER(NONCLIENTMETRICS, lfMessageFont) |
30 | 29 |
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121 if (size_ret < (buffer_size - 1)) { | 120 if (size_ret < (buffer_size - 1)) { |
122 output.resize(size_ret); | 121 output.resize(size_ret); |
123 return output; | 122 return output; |
124 } | 123 } |
125 buffer_size *= 2; | 124 buffer_size *= 2; |
126 } | 125 } |
127 return std::wstring(); // error | 126 return std::wstring(); // error |
128 } | 127 } |
129 | 128 |
130 bool UserAccountControlIsEnabled() { | 129 bool UserAccountControlIsEnabled() { |
131 // This can be slow if Windows ends up going to disk. Should watch this key | |
132 // for changes and only read it once, preferably on the file thread. | |
133 // http://code.google.com/p/chromium/issues/detail?id=61644 | |
134 base::ThreadRestrictions::ScopedAllowIO allow_io; | |
135 | |
136 base::win::RegKey key(HKEY_LOCAL_MACHINE, | 130 base::win::RegKey key(HKEY_LOCAL_MACHINE, |
137 L"SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\System", | 131 L"SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\System", |
138 KEY_READ); | 132 KEY_READ); |
139 DWORD uac_enabled; | 133 DWORD uac_enabled; |
140 if (!key.ReadValueDW(L"EnableLUA", &uac_enabled)) | 134 if (!key.ReadValueDW(L"EnableLUA", &uac_enabled)) |
141 return true; | 135 return true; |
142 // Users can set the EnableLUA value to something arbitrary, like 2, which | 136 // Users can set the EnableLUA value to something arbitrary, like 2, which |
143 // Vista will treat as UAC enabled, so we make sure it is not set to 0. | 137 // Vista will treat as UAC enabled, so we make sure it is not set to 0. |
144 return (uac_enabled != 0); | 138 return (uac_enabled != 0); |
145 } | 139 } |
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218 | 212 |
219 #ifndef COPY_FILE_COPY_SYMLINK | 213 #ifndef COPY_FILE_COPY_SYMLINK |
220 #error You must install the Windows 2008 or Vista Software Development Kit and \ | 214 #error You must install the Windows 2008 or Vista Software Development Kit and \ |
221 set it as your default include path to build this library. You can grab it by \ | 215 set it as your default include path to build this library. You can grab it by \ |
222 searching for "download windows sdk 2008" in your favorite web search engine. \ | 216 searching for "download windows sdk 2008" in your favorite web search engine. \ |
223 Also make sure you register the SDK with Visual Studio, by selecting \ | 217 Also make sure you register the SDK with Visual Studio, by selecting \ |
224 "Integrate Windows SDK with Visual Studio 2005" from the Windows SDK \ | 218 "Integrate Windows SDK with Visual Studio 2005" from the Windows SDK \ |
225 menu (see Start - All Programs - Microsoft Windows SDK - \ | 219 menu (see Start - All Programs - Microsoft Windows SDK - \ |
226 Visual Studio Registration). | 220 Visual Studio Registration). |
227 #endif | 221 #endif |
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