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* Copyright 2004--2005, Google Inc.
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#ifndef TALK_BASE_WINDOW_H_
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#define TALK_BASE_WINDOW_H_
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// Define platform specific window types.
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typedef unsigned long Window; // Avoid include <X11/Xlib.h>.
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// We commonly include win32.h in talk/base so just include it here.
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#include "talk/base/win32.h" // Include HWND, HMONITOR.
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typedef unsigned int CGWindowID;
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typedef unsigned int CGDirectDisplayID;
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// Define WindowT for each platform.
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typedef Window WindowT;
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typedef CGWindowID WindowT;
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typedef unsigned int WindowT;
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static WindowId Cast(int id) {
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return WindowId(reinterpret_cast<WindowId::WindowT>(id));
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return WindowId(static_cast<WindowId::WindowT>(id));
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WindowId() : id_(0) {}
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WindowId(const WindowT& id) : id_(id) {} // NOLINT
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const WindowT& id() const { return id_; }
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bool IsValid() const { return id_ != 0; }
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bool Equals(const WindowId& other) const {
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return id_ == other.id();
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// Define DesktopT for each platform.
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typedef Window DesktopT;
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typedef HMONITOR DesktopT;
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typedef CGDirectDisplayID DesktopT;
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typedef unsigned int DesktopT;
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static DesktopId Cast(int id, int index) {
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return DesktopId(reinterpret_cast<DesktopId::DesktopT>(id), index);
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return DesktopId(static_cast<DesktopId::DesktopT>(id), index);
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DesktopId() : id_(0), index_(-1) {}
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DesktopId(const DesktopT& id, int index) // NOLINT
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: id_(id), index_(index) {
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const DesktopT& id() const { return id_; }
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int index() const { return index_; }
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bool IsValid() const { return index_ != -1; }
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bool Equals(const DesktopId& other) const {
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return id_ == other.id() && index_ == other.index();
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// Id is the platform specific desktop identifier.
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// Index is the desktop index as enumerated by each platform.
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// Desktop capturer typically takes the index instead of id.
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// Window event types.
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} // namespace talk_base
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#endif // TALK_BASE_WINDOW_H_