56 lines
1.7 KiB
C++
56 lines
1.7 KiB
C++
/*
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* Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef MODULES_DESKTOP_CAPTURE_WIN_SCOPED_THREAD_DESKTOP_H_
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#define MODULES_DESKTOP_CAPTURE_WIN_SCOPED_THREAD_DESKTOP_H_
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#include <windows.h>
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#include <memory>
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#include "rtc_base/constructor_magic.h"
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#include "rtc_base/system/rtc_export.h"
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namespace webrtc {
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class Desktop;
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class RTC_EXPORT ScopedThreadDesktop {
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public:
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ScopedThreadDesktop();
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~ScopedThreadDesktop();
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// Returns true if |desktop| has the same desktop name as the currently
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// assigned desktop (if assigned) or as the initial desktop (if not assigned).
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// Returns false in any other case including failing Win32 APIs and
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// uninitialized desktop handles.
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bool IsSame(const Desktop& desktop);
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// Reverts the calling thread to use the initial desktop.
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void Revert();
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// Assigns |desktop| to be the calling thread. Returns true if the thread has
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// been switched to |desktop| successfully. Takes ownership of |desktop|.
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bool SetThreadDesktop(Desktop* desktop);
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private:
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// The desktop handle assigned to the calling thread by Set
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std::unique_ptr<Desktop> assigned_;
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// The desktop handle assigned to the calling thread at creation.
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std::unique_ptr<Desktop> initial_;
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RTC_DISALLOW_COPY_AND_ASSIGN(ScopedThreadDesktop);
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};
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} // namespace webrtc
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#endif // MODULES_DESKTOP_CAPTURE_WIN_SCOPED_THREAD_DESKTOP_H_
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