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// 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 APP_WIN_HWND_UTIL_H_
#define APP_WIN_HWND_UTIL_H_
#pragma once
#include <windows.h>
#include "base/string16.h"
namespace gfx {
class Size;
}
namespace app {
namespace win {
// A version of the GetClassNameW API that returns the class name in an
// string16. An empty result indicates a failure to get the class name.
string16 GetClassName(HWND hwnd);
// Useful for subclassing a HWND. Returns the previous window procedure.
WNDPROC SetWindowProc(HWND hwnd, WNDPROC wndproc);
// Pointer-friendly wrappers around Get/SetWindowLong(..., GWLP_USERDATA, ...)
// Returns the previously set value.
void* SetWindowUserData(HWND hwnd, void* user_data);
void* GetWindowUserData(HWND hwnd);
// Returns true if the specified window is the current active top window or one
// of its children.
bool DoesWindowBelongToActiveWindow(HWND window);
// Sizes the window to have a client or window size (depending on the value of
// |pref_is_client|) of pref, then centers the window over parent, ensuring the
// window fits on screen.
void CenterAndSizeWindow(HWND parent,
HWND window,
const gfx::Size& pref,
bool pref_is_client);
// Returns true if we are on Windows Vista or greater and composition is
// enabled.
bool ShouldUseVistaFrame();
} // namespace win
} // namespace app
#endif // APP_WIN_HWND_UTIL_H_
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