1 files changed, 59 insertions, 0 deletions
diff --git a/media/video/capture/screen/win/desktop.h b/media/video/capture/screen/win/desktop.h
new file mode 100644
index 0000000..69c83b4
--- /dev/null
+++ b/media/video/capture/screen/win/desktop.h
@@ -0,0 +1,59 @@
+// Copyright (c) 2012 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 MEDIA_VIDEO_CAPTURE_SCREEN_WIN_DESKTOP_H_
+#define MEDIA_VIDEO_CAPTURE_SCREEN_WIN_DESKTOP_H_
+
+#include <windows.h>
+
+#include "base/basictypes.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/string16.h"
+#include "media/base/media_export.h"
+
+namespace media {
+
+class MEDIA_EXPORT Desktop {
+ public:
+  ~Desktop();
+
+  // Returns the name of the desktop represented by the object. Return false if
+  // quering the name failed for any reason.
+  bool GetName(string16* desktop_name_out) const;
+
+  // Returns true if |other| has the same name as this desktop. Returns false
+  // in any other case including failing Win32 APIs and uninitialized desktop
+  // handles.
+  bool IsSame(const Desktop& other) const;
+
+  // Assigns the desktop to the current thread. Returns false is the operation
+  // failed for any reason.
+  bool SetThreadDesktop() const;
+
+  // Returns the desktop by its name or NULL if an error occurs.
+  static scoped_ptr<Desktop> GetDesktop(const wchar_t* desktop_name);
+
+  // Returns the desktop currently receiving user input or NULL if an error
+  // occurs.
+  static scoped_ptr<Desktop> GetInputDesktop();
+
+  // Returns the desktop currently assigned to the calling thread or NULL if
+  // an error occurs.
+  static scoped_ptr<Desktop> GetThreadDesktop();
+
+ private:
+  Desktop(HDESK desktop, bool own);
+
+  // The desktop handle.
+  HDESK desktop_;
+
+  // True if |desktop_| must be closed on teardown.
+  bool own_;
+
+  DISALLOW_COPY_AND_ASSIGN(Desktop);
+};
+
+}  // namespace media
+
+#endif  // MEDIA_VIDEO_CAPTURE_SCREEN_WIN_DESKTOP_H_