GetVersionEx under Windows 8
I'm writing a C++ code to determine what OS it is running on. I use GetVersionEx() API to do that, and this code as a tutorial, but it doesn't seems to handle Windows 8. Does anyone know how to fix it to run under Windows 8?
Answer
According to several comments in the MSDN forums and this article the version number for Windows 8 is 6.2
This is the sample code updated and tested in Windows 8 Developer Preview
#include "stdafx.h"
#include <windows.h>
#include <iostream>
using namespace std;
#include <tchar.h>
#include <stdio.h>
#include <strsafe.h>
#pragma comment(lib, "User32.lib")
#define BUFSIZE 256
typedef void (WINAPI *PGNSI)(LPSYSTEM_INFO);
typedef BOOL (WINAPI *PGPI)(DWORD, DWORD, DWORD, DWORD, PDWORD);
BOOL GetOSDisplayString( LPTSTR pszOS)
{
OSVERSIONINFOEX osvi;
SYSTEM_INFO si;
PGNSI pGNSI;
PGPI pGPI;
BOOL bOsVersionInfoEx;
DWORD dwType;
ZeroMemory(&si, sizeof(SYSTEM_INFO));
ZeroMemory(&osvi, sizeof(OSVERSIONINFOEX));
osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
bOsVersionInfoEx = GetVersionEx((OSVERSIONINFO*) &osvi);
if( ! bOsVersionInfoEx ) return 1;
// Call GetNativeSystemInfo if supported or GetSystemInfo otherwise.
pGNSI = (PGNSI) GetProcAddress(
GetModuleHandle(TEXT("kernel32.dll")),
"GetNativeSystemInfo");
if(NULL != pGNSI)
pGNSI(&si);
else GetSystemInfo(&si);
if ( VER_PLATFORM_WIN32_NT==osvi.dwPlatformId &&
osvi.dwMajorVersion > 4 )
{
StringCchCopy(pszOS, BUFSIZE, TEXT("Microsoft "));
// Test for the specific product.
if ( osvi.dwMajorVersion == 6 )
{
if( osvi.dwMinorVersion == 0 )
{
if( osvi.wProductType == VER_NT_WORKSTATION )
StringCchCat(pszOS, BUFSIZE, TEXT("Windows Vista "));
else StringCchCat(pszOS, BUFSIZE, TEXT("Windows Server 2008 " ));
}
if ( osvi.dwMinorVersion == 1 || osvi.dwMinorVersion == 2 )
{
if ( osvi.wProductType == VER_NT_WORKSTATION && osvi.dwMinorVersion == 1)
StringCchCat(pszOS, BUFSIZE, TEXT("Windows 7 "));
else
if ( osvi.wProductType == VER_NT_WORKSTATION && osvi.dwMinorVersion == 2)
StringCchCat(pszOS, BUFSIZE, TEXT("Windows 8 "));
else
StringCchCat(pszOS, BUFSIZE, TEXT("Windows Server 2008 R2 " ));
}
pGPI = (PGPI) GetProcAddress(
GetModuleHandle(TEXT("kernel32.dll")),
"GetProductInfo");
pGPI( osvi.dwMajorVersion, osvi.dwMinorVersion, 0, 0, &dwType);
switch( dwType )
{
case PRODUCT_ULTIMATE:
StringCchCat(pszOS, BUFSIZE, TEXT("Ultimate Edition" ));
break;
case PRODUCT_PROFESSIONAL:
StringCchCat(pszOS, BUFSIZE, TEXT("Professional" ));
break;
case PRODUCT_HOME_PREMIUM:
StringCchCat(pszOS, BUFSIZE, TEXT("Home Premium Edition" ));
break;
case PRODUCT_HOME_BASIC:
StringCchCat(pszOS, BUFSIZE, TEXT("Home Basic Edition" ));
break;
case PRODUCT_ENTERPRISE:
StringCchCat(pszOS, BUFSIZE, TEXT("Enterprise Edition" ));
break;
case PRODUCT_BUSINESS:
StringCchCat(pszOS, BUFSIZE, TEXT("Business Edition" ));
break;
case PRODUCT_STARTER:
StringCchCat(pszOS, BUFSIZE, TEXT("Starter Edition" ));
break;
case PRODUCT_CLUSTER_SERVER:
StringCchCat(pszOS, BUFSIZE, TEXT("Cluster Server Edition" ));
break;
case PRODUCT_DATACENTER_SERVER:
StringCchCat(pszOS, BUFSIZE, TEXT("Datacenter Edition" ));
break;
case PRODUCT_DATACENTER_SERVER_CORE:
StringCchCat(pszOS, BUFSIZE, TEXT("Datacenter Edition (core installation)" ));
break;
case PRODUCT_ENTERPRISE_SERVER:
StringCchCat(pszOS, BUFSIZE, TEXT("Enterprise Edition" ));
break;
case PRODUCT_ENTERPRISE_SERVER_CORE:
StringCchCat(pszOS, BUFSIZE, TEXT("Enterprise Edition (core installation)" ));
break;
case PRODUCT_ENTERPRISE_SERVER_IA64:
StringCchCat(pszOS, BUFSIZE, TEXT("Enterprise Edition for Itanium-based Systems" ));
break;
case PRODUCT_SMALLBUSINESS_SERVER:
StringCchCat(pszOS, BUFSIZE, TEXT("Small Business Server" ));
break;
case PRODUCT_SMALLBUSINESS_SERVER_PREMIUM:
StringCchCat(pszOS, BUFSIZE, TEXT("Small Business Server Premium Edition" ));
break;
case PRODUCT_STANDARD_SERVER:
StringCchCat(pszOS, BUFSIZE, TEXT("Standard Edition" ));
break;
case PRODUCT_STANDARD_SERVER_CORE:
StringCchCat(pszOS, BUFSIZE, TEXT("Standard Edition (core installation)" ));
break;
case PRODUCT_WEB_SERVER:
StringCchCat(pszOS, BUFSIZE, TEXT("Web Server Edition" ));
break;
}
}
if ( osvi.dwMajorVersion == 5 && osvi.dwMinorVersion == 2 )
{
if( GetSystemMetrics(SM_SERVERR2) )
StringCchCat(pszOS, BUFSIZE, TEXT( "Windows Server 2003 R2, "));
else if ( osvi.wSuiteMask & VER_SUITE_STORAGE_SERVER )
StringCchCat(pszOS, BUFSIZE, TEXT( "Windows Storage Server 2003"));
else if ( osvi.wSuiteMask & VER_SUITE_WH_SERVER )
StringCchCat(pszOS, BUFSIZE, TEXT( "Windows Home Server"));
else if( osvi.wProductType == VER_NT_WORKSTATION &&
si.wProcessorArchitecture==PROCESSOR_ARCHITECTURE_AMD64)
{
StringCchCat(pszOS, BUFSIZE, TEXT( "Windows XP Professional x64 Edition"));
}
else StringCchCat(pszOS, BUFSIZE, TEXT("Windows Server 2003, "));
// Test for the server type.
if ( osvi.wProductType != VER_NT_WORKSTATION )
{
if ( si.wProcessorArchitecture==PROCESSOR_ARCHITECTURE_IA64 )
{
if( osvi.wSuiteMask & VER_SUITE_DATACENTER )
StringCchCat(pszOS, BUFSIZE, TEXT( "Datacenter Edition for Itanium-based Systems" ));
else if( osvi.wSuiteMask & VER_SUITE_ENTERPRISE )
StringCchCat(pszOS, BUFSIZE, TEXT( "Enterprise Edition for Itanium-based Systems" ));
}
else if ( si.wProcessorArchitecture==PROCESSOR_ARCHITECTURE_AMD64 )
{
if( osvi.wSuiteMask & VER_SUITE_DATACENTER )
StringCchCat(pszOS, BUFSIZE, TEXT( "Datacenter x64 Edition" ));
else if( osvi.wSuiteMask & VER_SUITE_ENTERPRISE )
StringCchCat(pszOS, BUFSIZE, TEXT( "Enterprise x64 Edition" ));
else StringCchCat(pszOS, BUFSIZE, TEXT( "Standard x64 Edition" ));
}
else
{
if ( osvi.wSuiteMask & VER_SUITE_COMPUTE_SERVER )
StringCchCat(pszOS, BUFSIZE, TEXT( "Compute Cluster Edition" ));
else if( osvi.wSuiteMask & VER_SUITE_DATACENTER )
StringCchCat(pszOS, BUFSIZE, TEXT( "Datacenter Edition" ));
else if( osvi.wSuiteMask & VER_SUITE_ENTERPRISE )
StringCchCat(pszOS, BUFSIZE, TEXT( "Enterprise Edition" ));
else if ( osvi.wSuiteMask & VER_SUITE_BLADE )
StringCchCat(pszOS, BUFSIZE, TEXT( "Web Edition" ));
else StringCchCat(pszOS, BUFSIZE, TEXT( "Standard Edition" ));
}
}
}
if ( osvi.dwMajorVersion == 5 && osvi.dwMinorVersion == 1 )
{
StringCchCat(pszOS, BUFSIZE, TEXT("Windows XP "));
if( osvi.wSuiteMask & VER_SUITE_PERSONAL )
StringCchCat(pszOS, BUFSIZE, TEXT( "Home Edition" ));
else StringCchCat(pszOS, BUFSIZE, TEXT( "Professional" ));
}
if ( osvi.dwMajorVersion == 5 && osvi.dwMinorVersion == 0 )
{
StringCchCat(pszOS, BUFSIZE, TEXT("Windows 2000 "));
if ( osvi.wProductType == VER_NT_WORKSTATION )
{
StringCchCat(pszOS, BUFSIZE, TEXT( "Professional" ));
}
else
{
if( osvi.wSuiteMask & VER_SUITE_DATACENTER )
StringCchCat(pszOS, BUFSIZE, TEXT( "Datacenter Server" ));
else if( osvi.wSuiteMask & VER_SUITE_ENTERPRISE )
StringCchCat(pszOS, BUFSIZE, TEXT( "Advanced Server" ));
else StringCchCat(pszOS, BUFSIZE, TEXT( "Server" ));
}
}
// Include service pack (if any) and build number.
if( _tcslen(osvi.szCSDVersion) > 0 )
{
StringCchCat(pszOS, BUFSIZE, TEXT(" ") );
StringCchCat(pszOS, BUFSIZE, osvi.szCSDVersion);
}
TCHAR buf[80];
StringCchPrintf( buf, 80, TEXT(" (build %d)"), osvi.dwBuildNumber);
StringCchCat(pszOS, BUFSIZE, buf);
if ( osvi.dwMajorVersion >= 6 )
{
if ( si.wProcessorArchitecture==PROCESSOR_ARCHITECTURE_AMD64 )
StringCchCat(pszOS, BUFSIZE, TEXT( ", 64-bit" ));
else if (si.wProcessorArchitecture==PROCESSOR_ARCHITECTURE_INTEL )
StringCchCat(pszOS, BUFSIZE, TEXT(", 32-bit"));
}
return TRUE;
}
else
{
printf( "This sample does not support this version of Windows.\n");
return FALSE;
}
}
int __cdecl _tmain()
{
TCHAR szOS[BUFSIZE];
if( GetOSDisplayString( szOS ) )
{
_tprintf( TEXT("\n%s\n"), szOS );
cin.get();
}
}
This returns Microsoft Windows 8 (build 8102), 64-bit on my Windows 8 Test Machine