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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 BASE_WIN_UTIL_H_
#define BASE_WIN_UTIL_H_
#pragma once
#include <windows.h>
#include <string>
#include "base/string16.h"
struct IPropertyStore;
struct _tagpropertykey;
typedef _tagpropertykey PROPERTYKEY;
namespace win_util {
void GetNonClientMetrics(NONCLIENTMETRICS* metrics);
// Returns the string representing the current user sid.
bool GetUserSidString(std::wstring* user_sid);
// 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 shift key is currently pressed.
bool IsShiftPressed();
// Returns true if the ctrl key is currently pressed.
bool IsCtrlPressed();
// Returns true if the alt key is currently pressed.
bool IsAltPressed();
// A version of the GetClassNameW API that returns the class name in an
// std::wstring. An empty result indicates a failure to get the class name.
std::wstring GetClassName(HWND window);
// Returns false if user account control (UAC) has been disabled with the
// EnableLUA registry flag. Returns true if user account control is enabled.
// NOTE: The EnableLUA registry flag, which is ignored on Windows XP
// machines, might still exist and be set to 0 (UAC disabled), in which case
// this function will return false. You should therefore check this flag only
// if the OS is Vista.
bool UserAccountControlIsEnabled();
// Use the Win32 API FormatMessage() function to generate a string, using
// Windows's default Message Compiled resources; ignoring the inserts.
std::wstring FormatMessage(unsigned messageid);
// Uses the last Win32 error to generate a human readable message string.
std::wstring FormatLastWin32Error();
// Sets the application id in given IPropertyStore. The function is intended
// for tagging application/chromium shortcut, browser window and jump list for
// Win7.
bool SetAppIdForPropertyStore(IPropertyStore* property_store,
const wchar_t* app_id);
// Adds the specified |command| using the specified |name| to the AutoRun key.
// |root_key| could be HKCU or HKLM or the root of any user hive.
bool AddCommandToAutoRun(HKEY root_key, const string16& name,
const string16& command);
// Removes the command specified by |name| from the AutoRun key. |root_key|
// could be HKCU or HKLM or the root of any user hive.
bool RemoveCommandFromAutoRun(HKEY root_key, const string16& name);
} // namespace win_util
#endif // BASE_WIN_UTIL_H_
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