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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/base_export.h" |
| 13 #include "base/basictypes.h" | 13 #include "base/basictypes.h" |
| 14 | 14 |
| 15 namespace base { | 15 namespace base { |
| 16 namespace win { | 16 namespace win { |
| 17 | 17 |
| 18 // Utility class to read, write and manipulate the Windows Registry. | 18 // Utility class to read, write and manipulate the Windows Registry. |
| 19 // 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 |
| 20 // 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. |
| 21 // | 21 // |
| 22 // Note: | 22 // Note: |
| 23 // ReadValue family of functions guarantee that the return arguments | 23 // ReadValue family of functions guarantee that the return arguments |
| 24 // are not touched in case of failure. | 24 // are not touched in case of failure. |
| 25 class BASE_API RegKey { | 25 class BASE_EXPORT RegKey { |
| 26 public: | 26 public: |
| 27 RegKey(); | 27 RegKey(); |
| 28 RegKey(HKEY rootkey, const wchar_t* subkey, REGSAM access); | 28 RegKey(HKEY rootkey, const wchar_t* subkey, REGSAM access); |
| 29 ~RegKey(); | 29 ~RegKey(); |
| 30 | 30 |
| 31 LONG Create(HKEY rootkey, const wchar_t* subkey, REGSAM access); | 31 LONG Create(HKEY rootkey, const wchar_t* subkey, REGSAM access); |
| 32 | 32 |
| 33 LONG CreateWithDisposition(HKEY rootkey, const wchar_t* subkey, | 33 LONG CreateWithDisposition(HKEY rootkey, const wchar_t* subkey, |
| 34 DWORD* disposition, REGSAM access); | 34 DWORD* disposition, REGSAM access); |
| 35 | 35 |
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| 92 HKEY key_; // The registry key being iterated. | 92 HKEY key_; // The registry key being iterated. |
| 93 HANDLE watch_event_; | 93 HANDLE watch_event_; |
| 94 | 94 |
| 95 DISALLOW_COPY_AND_ASSIGN(RegKey); | 95 DISALLOW_COPY_AND_ASSIGN(RegKey); |
| 96 }; | 96 }; |
| 97 | 97 |
| 98 // Iterates the entries found in a particular folder on the registry. | 98 // Iterates the entries found in a particular folder on the registry. |
| 99 // 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 |
| 100 // 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 |
| 101 // adequate. | 101 // adequate. |
| 102 class BASE_API RegistryValueIterator { | 102 class BASE_EXPORT RegistryValueIterator { |
| 103 public: | 103 public: |
| 104 RegistryValueIterator(HKEY root_key, const wchar_t* folder_key); | 104 RegistryValueIterator(HKEY root_key, const wchar_t* folder_key); |
| 105 | 105 |
| 106 ~RegistryValueIterator(); | 106 ~RegistryValueIterator(); |
| 107 | 107 |
| 108 DWORD ValueCount() const; | 108 DWORD ValueCount() const; |
| 109 | 109 |
| 110 // True while the iterator is valid. | 110 // True while the iterator is valid. |
| 111 bool Valid() const; | 111 bool Valid() const; |
| 112 | 112 |
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| 132 | 132 |
| 133 // Current values. | 133 // Current values. |
| 134 wchar_t name_[MAX_PATH]; | 134 wchar_t name_[MAX_PATH]; |
| 135 wchar_t value_[MAX_PATH]; | 135 wchar_t value_[MAX_PATH]; |
| 136 DWORD value_size_; | 136 DWORD value_size_; |
| 137 DWORD type_; | 137 DWORD type_; |
| 138 | 138 |
| 139 DISALLOW_COPY_AND_ASSIGN(RegistryValueIterator); | 139 DISALLOW_COPY_AND_ASSIGN(RegistryValueIterator); |
| 140 }; | 140 }; |
| 141 | 141 |
| 142 class BASE_API RegistryKeyIterator { | 142 class BASE_EXPORT RegistryKeyIterator { |
| 143 public: | 143 public: |
| 144 RegistryKeyIterator(HKEY root_key, const wchar_t* folder_key); | 144 RegistryKeyIterator(HKEY root_key, const wchar_t* folder_key); |
| 145 | 145 |
| 146 ~RegistryKeyIterator(); | 146 ~RegistryKeyIterator(); |
| 147 | 147 |
| 148 DWORD SubkeyCount() const; | 148 DWORD SubkeyCount() const; |
| 149 | 149 |
| 150 // True while the iterator is valid. | 150 // True while the iterator is valid. |
| 151 bool Valid() const; | 151 bool Valid() const; |
| 152 | 152 |
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| 169 | 169 |
| 170 wchar_t name_[MAX_PATH]; | 170 wchar_t name_[MAX_PATH]; |
| 171 | 171 |
| 172 DISALLOW_COPY_AND_ASSIGN(RegistryKeyIterator); | 172 DISALLOW_COPY_AND_ASSIGN(RegistryKeyIterator); |
| 173 }; | 173 }; |
| 174 | 174 |
| 175 } // namespace win | 175 } // namespace win |
| 176 } // namespace base | 176 } // namespace base |
| 177 | 177 |
| 178 #endif // BASE_WIN_REGISTRY_H_ | 178 #endif // BASE_WIN_REGISTRY_H_ |
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