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// **************************************************************************
// * This file is part of the FreeFileSync project. It is distributed under *
// * GNU General Public License: http://www.gnu.org/licenses/gpl.html *
// * Copyright (C) Zenju (zenju AT gmx DOT de) - All Rights Reserved *
// **************************************************************************
#ifndef WINDOWS_VERSION_HEADER_238470348254325
#define WINDOWS_VERSION_HEADER_238470348254325
#include <zen/win.h> //includes "windows.h"
namespace zen
{
bool winXpOrLater();
bool winServer2003orLater();
bool vistaOrLater();
bool win7OrLater();
bool win8OrLater();
//######################### implementation #########################
//version overview: http://msdn.microsoft.com/en-us/library/ms724834(VS.85).aspx
//2000 is version 5.0
//XP is version 5.1
//Server 2003 is version 5.2
//Vista is version 6.0
//Seven is version 6.1
//Eight is version 6.2
namespace impl
{
inline
bool winXyOrLater(DWORD major, DWORD minor)
{
OSVERSIONINFO osvi = {};
osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
if (::GetVersionEx(&osvi)) //38 ns per call! (yes, that's nano!) -> we do NOT miss C++11 thread safe statics right now...
return osvi.dwMajorVersion != major ? osvi.dwMajorVersion > major : osvi.dwMinorVersion >= minor;
return false;
}
}
inline
bool winXpOrLater() { return impl::winXyOrLater(5, 1); }
inline
bool winServer2003orLater() { return impl::winXyOrLater(5, 2); }
inline
bool vistaOrLater() { return impl::winXyOrLater(6, 0); }
inline
bool win7OrLater() { return impl::winXyOrLater(6, 1); }
inline
bool win8OrLater() { return impl::winXyOrLater(6, 2); }
}
#endif //WINDOWS_VERSION_HEADER_238470348254325
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