Implements AeroPeek of Windows 7..

base/scoped_native_library.h

+// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef BASE_SCOPED_NATIVE_LIBRARY_H_
+#define BASE_SCOPED_NATIVE_LIBRARY_H_
+
+#include "base/file_path.h"
+#include "base/native_library.h"
+
+namespace base {
+
+// A class which encapsulates a base::NativeLibrary object available only in a
+// scope.
+// This class automatically unloads the loaded library in its destructor.
+class ScopedNativeLibrary {
+ public:
+  explicit ScopedNativeLibrary(const FilePath& library_path) {
+    library_ = base::LoadNativeLibrary(library_path);
+  }
+
+  ~ScopedNativeLibrary() {
+    if (library_)
+      base::UnloadNativeLibrary(library_);
+  }
+
+  void* GetFunctionPointer(const char* function_name) {
+    if (!library_)
+      return NULL;
+    return base::GetFunctionPointerFromNativeLibrary(library_, function_name);
+  }
+
+ private:
+  base::NativeLibrary library_;
+};
+
+}  // namespace base
+
+#endif  // BASE_SCOPED_NATIVE_LIBRARY_H_