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// Copyright (c) 2011 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_WINDOWS_VERSION_H_
#define BASE_WIN_WINDOWS_VERSION_H_
#pragma once
#include "base/base_api.h"
typedef void* HANDLE;
namespace base {
namespace win {
// NOTE: Keep these in order so callers can do things like
// "if (GetWinVersion() > WINVERSION_2000) ...". It's OK to change the values,
// though.
enum Version {
VERSION_PRE_2000 = 0, // Not supported
VERSION_2000 = 1, // Not supported
VERSION_XP = 2,
VERSION_SERVER_2003 = 3, // Also includes Windows XP Professional x64 edition
VERSION_VISTA = 4,
VERSION_2008 = 5,
VERSION_WIN7 = 6,
};
// Returns the running version of Windows.
BASE_API Version GetVersion();
// Returns the major and minor version of the service pack installed.
BASE_API void GetServicePackLevel(int* major, int* minor);
enum WindowsArchitecture {
X86_ARCHITECTURE,
X64_ARCHITECTURE,
IA64_ARCHITECTURE,
OTHER_ARCHITECTURE,
};
// Returns the processor architecture this copy of Windows natively uses.
// For example, given an x64-capable processor, we have three possibilities:
// 32-bit Chrome running on 32-bit Windows: X86_ARCHITECTURE
// 32-bit Chrome running on 64-bit Windows via WOW64: X64_ARCHITECTURE
// 64-bit Chrome running on 64-bit Windows: X64_ARCHITECTURE
BASE_API WindowsArchitecture GetWindowsArchitecture();
enum WOW64Status {
WOW64_DISABLED,
WOW64_ENABLED,
WOW64_UNKNOWN,
};
// Returns whether this process is running under WOW64 (the wrapper that allows
// 32-bit processes to run on 64-bit versions of Windows). This will return
// WOW64_DISABLED for both "32-bit Chrome on 32-bit Windows" and "64-bit Chrome
// on 64-bit Windows". WOW64_UNKNOWN means "an error occurred", e.g. the
// process does not have sufficient access rights to determine this.
BASE_API WOW64Status GetWOW64Status();
// Like GetWOW64Status(), but for the supplied handle instead of the current
// process.
BASE_API WOW64Status GetWOW64StatusForProcess(HANDLE process_handle);
} // namespace win
} // namespace base
#endif // BASE_WIN_WINDOWS_VERSION_H_
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