/*
 *  Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree. An additional intellectual property rights grant can be found
 *  in the file PATENTS.  All contributing project authors may
 *  be found in the AUTHORS file in the root of the source tree.
 */

#ifndef WEBRTC_MODULES_DESKTOP_CAPTURE_WIN_SCREEN_CAPTURE_UTILS_H_
#define WEBRTC_MODULES_DESKTOP_CAPTURE_WIN_SCREEN_CAPTURE_UTILS_H_

#include "webrtc/modules/desktop_capture/desktop_capturer.h"

namespace webrtc {

// Output the list of active screens into |screens|. Returns true if succeeded,
// or false if it fails to enumerate the display devices.
bool GetScreenList(DesktopCapturer::SourceList* screens);

// Returns true if |screen| is a valid screen. The screen device key is
// returned through |device_key| if the screen is valid. The device key can be
// used in GetScreenRect to verify the screen matches the previously obtained
// id.
bool IsScreenValid(DesktopCapturer::SourceId screen, std::wstring* device_key);

// Get the rect of the screen identified by |screen|, relative to the primary
// display's top-left. If the screen device key does not match |device_key|, or
// the screen does not exist, or any error happens, an empty rect is returned.
DesktopRect GetScreenRect(DesktopCapturer::SourceId screen,
                          const std::wstring& device_key);

}  // namespace webrtc

#endif  // WEBRTC_MODULES_DESKTOP_CAPTURE_WIN_SCREEN_CAPTURE_UTILS_H_