66 lines
1.6 KiB
C++
66 lines
1.6 KiB
C++
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//+-------------------------------------------------------------------------
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//
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// Microsoft Windows
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//
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// Copyright (C) Microsoft Corporation, 1997 - 1999
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//
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// File: osver.cpp
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//
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//--------------------------------------------------------------------------
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#include "pch.h"
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#pragma hdrstop
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#include "osver.h"
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int
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OsVersion::Get(
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void
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) const
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{
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if (UNKNOWN == m_os)
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{
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OSVERSIONINFO osvi;
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osvi.dwOSVersionInfoSize = sizeof(osvi);
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if (0 != GetVersionEx(&osvi))
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{
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//
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// This code uses the same logic as that used by the shell
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// to determine OS version.
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//
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switch(osvi.dwPlatformId)
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{
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case VER_PLATFORM_WIN32_WINDOWS:
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if (osvi.dwMajorVersion > 4 || (osvi.dwMajorVersion == 4 &&
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osvi.dwMinorVersion >= 10))
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{
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m_os = WIN98;
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}
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else if (osvi.dwMajorVersion >= 4)
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{
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m_os = WIN95;
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}
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break;
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case VER_PLATFORM_WIN32_NT:
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if (osvi.dwMajorVersion >= 5)
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{
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m_os = NT5;
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}
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else if (osvi.dwMajorVersion >= 4)
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{
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m_os = NT4;
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}
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break;
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default:
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break;
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}
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}
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}
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return m_os;
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}
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