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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 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 #ifndef BASE_WIN_REGISTRY_H_ | 5 #ifndef BASE_WIN_REGISTRY_H_ |
6 #define BASE_WIN_REGISTRY_H_ | 6 #define BASE_WIN_REGISTRY_H_ |
7 #pragma once | 7 #pragma once |
8 | 8 |
9 #include <windows.h> | 9 #include <windows.h> |
10 #include <string> | 10 #include <string> |
11 | 11 |
| 12 #include "base/base_api.h" |
12 #include "base/basictypes.h" | 13 #include "base/basictypes.h" |
13 | 14 |
14 namespace base { | 15 namespace base { |
15 namespace win { | 16 namespace win { |
16 | 17 |
17 // Utility class to read, write and manipulate the Windows Registry. | 18 // Utility class to read, write and manipulate the Windows Registry. |
18 // Registry vocabulary primer: a "key" is like a folder, in which there | 19 // Registry vocabulary primer: a "key" is like a folder, in which there |
19 // are "values", which are <name, data> pairs, with an associated data type. | 20 // are "values", which are <name, data> pairs, with an associated data type. |
20 // | 21 // |
21 // Note: | 22 // Note: |
22 // ReadValue family of functions guarantee that the return arguments | 23 // ReadValue family of functions guarantee that the return arguments |
23 // are not touched in case of failure. | 24 // are not touched in case of failure. |
24 class RegKey { | 25 class BASE_API RegKey { |
25 public: | 26 public: |
26 RegKey(); | 27 RegKey(); |
27 RegKey(HKEY rootkey, const wchar_t* subkey, REGSAM access); | 28 RegKey(HKEY rootkey, const wchar_t* subkey, REGSAM access); |
28 ~RegKey(); | 29 ~RegKey(); |
29 | 30 |
30 LONG Create(HKEY rootkey, const wchar_t* subkey, REGSAM access); | 31 LONG Create(HKEY rootkey, const wchar_t* subkey, REGSAM access); |
31 | 32 |
32 LONG CreateWithDisposition(HKEY rootkey, const wchar_t* subkey, | 33 LONG CreateWithDisposition(HKEY rootkey, const wchar_t* subkey, |
33 DWORD* disposition, REGSAM access); | 34 DWORD* disposition, REGSAM access); |
34 | 35 |
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91 HKEY key_; // The registry key being iterated. | 92 HKEY key_; // The registry key being iterated. |
92 HANDLE watch_event_; | 93 HANDLE watch_event_; |
93 | 94 |
94 DISALLOW_COPY_AND_ASSIGN(RegKey); | 95 DISALLOW_COPY_AND_ASSIGN(RegKey); |
95 }; | 96 }; |
96 | 97 |
97 // Iterates the entries found in a particular folder on the registry. | 98 // Iterates the entries found in a particular folder on the registry. |
98 // For this application I happen to know I wont need data size larger | 99 // For this application I happen to know I wont need data size larger |
99 // than MAX_PATH, but in real life this wouldn't neccessarily be | 100 // than MAX_PATH, but in real life this wouldn't neccessarily be |
100 // adequate. | 101 // adequate. |
101 class RegistryValueIterator { | 102 class BASE_API RegistryValueIterator { |
102 public: | 103 public: |
103 RegistryValueIterator(HKEY root_key, const wchar_t* folder_key); | 104 RegistryValueIterator(HKEY root_key, const wchar_t* folder_key); |
104 | 105 |
105 ~RegistryValueIterator(); | 106 ~RegistryValueIterator(); |
106 | 107 |
107 DWORD ValueCount() const; | 108 DWORD ValueCount() const; |
108 | 109 |
109 // True while the iterator is valid. | 110 // True while the iterator is valid. |
110 bool Valid() const; | 111 bool Valid() const; |
111 | 112 |
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131 | 132 |
132 // Current values. | 133 // Current values. |
133 wchar_t name_[MAX_PATH]; | 134 wchar_t name_[MAX_PATH]; |
134 wchar_t value_[MAX_PATH]; | 135 wchar_t value_[MAX_PATH]; |
135 DWORD value_size_; | 136 DWORD value_size_; |
136 DWORD type_; | 137 DWORD type_; |
137 | 138 |
138 DISALLOW_COPY_AND_ASSIGN(RegistryValueIterator); | 139 DISALLOW_COPY_AND_ASSIGN(RegistryValueIterator); |
139 }; | 140 }; |
140 | 141 |
141 class RegistryKeyIterator { | 142 class BASE_API RegistryKeyIterator { |
142 public: | 143 public: |
143 RegistryKeyIterator(HKEY root_key, const wchar_t* folder_key); | 144 RegistryKeyIterator(HKEY root_key, const wchar_t* folder_key); |
144 | 145 |
145 ~RegistryKeyIterator(); | 146 ~RegistryKeyIterator(); |
146 | 147 |
147 DWORD SubkeyCount() const; | 148 DWORD SubkeyCount() const; |
148 | 149 |
149 // True while the iterator is valid. | 150 // True while the iterator is valid. |
150 bool Valid() const; | 151 bool Valid() const; |
151 | 152 |
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168 | 169 |
169 wchar_t name_[MAX_PATH]; | 170 wchar_t name_[MAX_PATH]; |
170 | 171 |
171 DISALLOW_COPY_AND_ASSIGN(RegistryKeyIterator); | 172 DISALLOW_COPY_AND_ASSIGN(RegistryKeyIterator); |
172 }; | 173 }; |
173 | 174 |
174 } // namespace win | 175 } // namespace win |
175 } // namespace base | 176 } // namespace base |
176 | 177 |
177 #endif // BASE_WIN_REGISTRY_H_ | 178 #endif // BASE_WIN_REGISTRY_H_ |
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