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#define BUFSIZE 4096
BOOL SystemTweaks::getOSVersionString(std::string& rstrOSVersion, unsigned int *puiPlatformID, unsigned int *puiMajorVersion, unsigned int *puiMinorVersion) {
OSVERSIONINFOEX osvi;
BOOL bOsVersionInfoEx;
// Try calling GetVersionEx using the OSVERSIONINFOEX structure.
// If that fails, try using the OSVERSIONINFO structure.
rstrOSVersion = "";
ZeroMemory(&osvi, sizeof(OSVERSIONINFOEX));
osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
if( !(bOsVersionInfoEx = GetVersionEx ((OSVERSIONINFO *) &osvi)) )
{
osvi.dwOSVersionInfoSize = sizeof (OSVERSIONINFO);
if (! GetVersionEx ( (OSVERSIONINFO *) &osvi) )
return FALSE;
}
if (puiMajorVersion && puiMinorVersion && puiPlatformID) {
*puiPlatformID = osvi.dwPlatformId;
*puiMajorVersion = osvi.dwMajorVersion;
*puiMinorVersion = osvi.dwMinorVersion;
}
switch (osvi.dwPlatformId)
{
// Test for the Windows NT product family.
case VER_PLATFORM_WIN32_NT:
// Test for the specific product.
if ( osvi.dwMajorVersion == 6 && osvi.dwMinorVersion == 0)
rstrOSVersion += "Windows Vista ";
if ( osvi.dwMajorVersion == 6 && osvi.dwMinorVersion == 1)
rstrOSVersion += "Windows 7 ";
if ( osvi.dwMajorVersion == 5 && osvi.dwMinorVersion == 2 )
rstrOSVersion += "Windows Server 2003 ";
if ( osvi.dwMajorVersion == 5 && osvi.dwMinorVersion == 1 )
rstrOSVersion += "Windows XP ";
if ( osvi.dwMajorVersion == 5 && osvi.dwMinorVersion == 0 )
rstrOSVersion += "Microsoft Windows 2000 ";
if ( osvi.dwMajorVersion <= 4 )
rstrOSVersion += "Microsoft Windows NT ";
// Test for specific product on Windows NT 4.0 SP6 and later.
if( bOsVersionInfoEx )
{
// Test for the workstation type.
if ( osvi.wProductType == VER_NT_WORKSTATION )
{
if( osvi.dwMajorVersion == 4 )
rstrOSVersion += "Workstation 4.0 ";
else if( osvi.wSuiteMask & VER_SUITE_PERSONAL )
rstrOSVersion += "Home Edition ";
else {
switch ( osvi.wProductType){
case 0x00000001: // ultimate
{
if (rstrOSVersion.find("Windows XP", 0) == 0) {
rstrOSVersion += "Professional ";
} else {
rstrOSVersion += "Ultimate ";
}
}
break;
case 0x00000030: // professional
rstrOSVersion += "Professional ";
break;
}
}
}
// Test for the server type.
else if ( osvi.wProductType == VER_NT_SERVER ||
osvi.wProductType == VER_NT_DOMAIN_CONTROLLER )
{
if(osvi.dwMajorVersion==5 && osvi.dwMinorVersion==2)
{
if( osvi.wSuiteMask & VER_SUITE_DATACENTER )
rstrOSVersion += "Datacenter Edition ";
else if( osvi.wSuiteMask & VER_SUITE_ENTERPRISE )
rstrOSVersion += "Enterprise Edition ";
else if ( osvi.wSuiteMask == VER_SUITE_BLADE )
rstrOSVersion += "Web Edition ";
else
rstrOSVersion += "Standard Edition ";
}
else if(osvi.dwMajorVersion==5 && osvi.dwMinorVersion==0)
{
if( osvi.wSuiteMask & VER_SUITE_DATACENTER )
rstrOSVersion += "Datacenter Server ";
else if( osvi.wSuiteMask & VER_SUITE_ENTERPRISE )
rstrOSVersion += "Advanced Server ";
else
rstrOSVersion += "Server ";
}
else // Windows NT 4.0
{
if( osvi.wSuiteMask & VER_SUITE_ENTERPRISE )
rstrOSVersion += "Server 4.0, Enterprise Edition ";
else
rstrOSVersion += "Server 4.0 ";
}
}
}
// Test for specific product on Windows NT 4.0 SP5 and earlier
else
{
HKEY hKey;
char szProductType[BUFSIZE];
DWORD dwBufLen=BUFSIZE;
LONG lRet;
lRet = RegOpenKeyEx( HKEY_LOCAL_MACHINE,
"SYSTEM\\CurrentControlSet\\Control\\ProductOptions",
0, KEY_QUERY_VALUE, &hKey );
if( lRet != ERROR_SUCCESS )
return FALSE;
lRet = RegQueryValueEx( hKey, "ProductType", NULL, NULL,
(LPBYTE) szProductType, &dwBufLen);
if( (lRet != ERROR_SUCCESS) || (dwBufLen > BUFSIZE) )
return FALSE;
RegCloseKey( hKey );
if ( lstrcmpi( "WINNT", szProductType) == 0 )
rstrOSVersion += "Workstation ";
if ( lstrcmpi( "LANMANNT", szProductType) == 0 )
rstrOSVersion += "Server ";
if ( lstrcmpi( "SERVERNT", szProductType) == 0 )
rstrOSVersion += "Advanced Server ";
char acRevision[1000];
sprintf_s(acRevision, "%d.%d ", osvi.dwMajorVersion, osvi.dwMinorVersion );
rstrOSVersion += acRevision;
}
// Display service pack (if any) and build number.
if( osvi.dwMajorVersion == 4 &&
lstrcmpi( osvi.szCSDVersion, "Service Pack 6" ) == 0 )
{
HKEY hKey;
LONG lRet;
// Test for SP6 versus SP6a.
lRet = RegOpenKeyEx( HKEY_LOCAL_MACHINE,
"SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Hotfix\\Q246009",
0, KEY_QUERY_VALUE, &hKey );
if( lRet == ERROR_SUCCESS ) {
char acBuildNum[1000];
sprintf_s(acBuildNum, "Service Pack 6a (Build %d) ", osvi.dwBuildNumber & 0xFFFF );
rstrOSVersion += acBuildNum;
} else // Windows NT 4.0 prior to SP6a
{
char acBuildNum[1000];
sprintf_s(acBuildNum, "%s - Build %d\n",
osvi.szCSDVersion,
osvi.dwBuildNumber & 0xFFFF);
rstrOSVersion += acBuildNum;
}
RegCloseKey( hKey );
}
else // not Windows NT 4.0
{
char acBuildNum[1000];
sprintf_s(acBuildNum, "%s - Build %d\n",
osvi.szCSDVersion,
osvi.dwBuildNumber & 0xFFFF);
rstrOSVersion += acBuildNum;
}
break;
// Test for the Windows Me/98/95.
case VER_PLATFORM_WIN32_WINDOWS:
if (osvi.dwMajorVersion == 4 && osvi.dwMinorVersion == 0)
{
rstrOSVersion += "Windows 95 ";
if (osvi.szCSDVersion[1]=='C' || osvi.szCSDVersion[1]=='B')
rstrOSVersion += "OSR2 ";
}
if (osvi.dwMajorVersion == 4 && osvi.dwMinorVersion == 10)
{
rstrOSVersion += "Windows 98 ";
if ( osvi.szCSDVersion[1] == 'A' )
rstrOSVersion += "SE ";
}
if (osvi.dwMajorVersion == 4 && osvi.dwMinorVersion == 90)
{
rstrOSVersion += "Windows Millennium Edition\n";
}
break;
case VER_PLATFORM_WIN32s:
rstrOSVersion += "Win32s";
break;
}
return TRUE;
}
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