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1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2006-2008 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_SCOPED_HANDLE_WIN_H_ | 5 #ifndef BASE_SCOPED_HANDLE_WIN_H_ |
6 #define BASE_SCOPED_HANDLE_WIN_H_ | 6 #define BASE_SCOPED_HANDLE_WIN_H_ |
7 | 7 |
8 #include <windows.h> | 8 #include <windows.h> |
9 | 9 |
10 #include "base/basictypes.h" | 10 #include "base/basictypes.h" |
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161 if (object_ && object != object_) | 161 if (object_ && object != object_) |
162 Close(); | 162 Close(); |
163 object_ = object; | 163 object_ = object; |
164 } | 164 } |
165 | 165 |
166 ScopedGDIObject& operator=(T object) { | 166 ScopedGDIObject& operator=(T object) { |
167 Set(object); | 167 Set(object); |
168 return *this; | 168 return *this; |
169 } | 169 } |
170 | 170 |
| 171 T release() { |
| 172 T object = object_; |
| 173 object_ = NULL; |
| 174 return object; |
| 175 } |
| 176 |
171 operator T() { return object_; } | 177 operator T() { return object_; } |
172 | 178 |
173 private: | 179 private: |
174 void Close() { | 180 void Close() { |
175 if (object_) | 181 if (object_) |
176 DeleteObject(object_); | 182 DeleteObject(object_); |
177 } | 183 } |
178 | 184 |
179 T object_; | 185 T object_; |
180 DISALLOW_COPY_AND_ASSIGN(ScopedGDIObject); | 186 DISALLOW_COPY_AND_ASSIGN(ScopedGDIObject); |
181 }; | 187 }; |
182 | 188 |
183 // Typedefs for some common use cases. | 189 // Typedefs for some common use cases. |
184 typedef ScopedGDIObject<HBITMAP> ScopedBitmap; | 190 typedef ScopedGDIObject<HBITMAP> ScopedBitmap; |
185 typedef ScopedGDIObject<HRGN> ScopedHRGN; | 191 typedef ScopedGDIObject<HRGN> ScopedRegion; |
186 typedef ScopedGDIObject<HFONT> ScopedHFONT; | 192 typedef ScopedGDIObject<HFONT> ScopedHFONT; |
187 | 193 |
188 | 194 |
189 // Like ScopedHandle except for HGLOBAL. | 195 // Like ScopedHandle except for HGLOBAL. |
190 template<class T> | 196 template<class T> |
191 class ScopedHGlobal { | 197 class ScopedHGlobal { |
192 public: | 198 public: |
193 explicit ScopedHGlobal(HGLOBAL glob) : glob_(glob) { | 199 explicit ScopedHGlobal(HGLOBAL glob) : glob_(glob) { |
194 data_ = static_cast<T*>(GlobalLock(glob_)); | 200 data_ = static_cast<T*>(GlobalLock(glob_)); |
195 } | 201 } |
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208 | 214 |
209 private: | 215 private: |
210 HGLOBAL glob_; | 216 HGLOBAL glob_; |
211 | 217 |
212 T* data_; | 218 T* data_; |
213 | 219 |
214 DISALLOW_EVIL_CONSTRUCTORS(ScopedHGlobal); | 220 DISALLOW_EVIL_CONSTRUCTORS(ScopedHGlobal); |
215 }; | 221 }; |
216 | 222 |
217 #endif // BASE_SCOPED_HANDLE_WIN_H_ | 223 #endif // BASE_SCOPED_HANDLE_WIN_H_ |
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