Viewing file:  WindowsVersion.h (4.09 KB) -rw-rw-rw-
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BOOL DisplaySystemVersion(LPTSTR buffer)
{
OSVERSIONINFOEX osvi;
BOOL bOsVersionInfoEx;
LPTSTR tmp=buffer;
// Try calling GetVersionEx using the OSVERSIONINFOEX structure.
// If that fails, try using the OSVERSIONINFO structure.
ZeroMemory(&osvi, sizeof(OSVERSIONINFOEX));
osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
bOsVersionInfoEx = GetVersionEx ((OSVERSIONINFO *) &osvi);
if( !bOsVersionInfoEx )
{
// If OSVERSIONINFOEX doesn't work, try OSVERSIONINFO.
osvi.dwOSVersionInfoSize = sizeof (OSVERSIONINFO);
if (! GetVersionEx ( (OSVERSIONINFO *) &osvi) )
return FALSE;
}
switch (osvi.dwPlatformId)
{
// Tests for Windows NT product family.
case VER_PLATFORM_WIN32_NT:
// Test for the product.
if ( osvi.dwMajorVersion <= 4 )
tmp+=_stprintf( tmp, _T("Microsoft Windows NT ") );
if ( osvi.dwMajorVersion == 5 && osvi.dwMinorVersion == 0 )
tmp+=_stprintf( tmp, _T("Microsoft Windows 2000 ") );
if( bOsVersionInfoEx ) // Use information from GetVersionEx.
{
// Test for the workstation type.
if ( osvi.wProductType == VER_NT_WORKSTATION )
{
if ( osvi.dwMajorVersion == 5 && osvi.dwMinorVersion == 1 )
tmp+=_stprintf ( tmp, _T("Microsoft Windows XP ") );
if( osvi.wSuiteMask & VER_SUITE_PERSONAL )
tmp+=_stprintf ( tmp, _T("Home Edition ") );
else
tmp+=_stprintf ( tmp, _T("Professional ") );
}
// Test for the server type.
else if ( osvi.wProductType == VER_NT_SERVER )
{
if ( osvi.dwMajorVersion == 5 && osvi.dwMinorVersion == 1 )
tmp+=_stprintf ( tmp, _T("Microsoft Windows .NET ") );
if( osvi.wSuiteMask & VER_SUITE_DATACENTER )
tmp+=_stprintf ( tmp, _T("DataCenter Server ") );
else if( osvi.wSuiteMask & VER_SUITE_ENTERPRISE )
if( osvi.dwMajorVersion == 4 )
tmp+=_stprintf ( tmp, _T("Advanced Server ") );
else
tmp+=_stprintf ( tmp, _T("Enterprise Server ") );
else if ( osvi.wSuiteMask == VER_SUITE_BLADE )
tmp+=_stprintf ( tmp, _T("Web Server ") );
else
tmp+=_stprintf ( tmp, _T("Server ") );
}
}
else // Use the registry on early versions of Windows NT.
{
HKEY hKey;
TCHAR szProductType[80];
DWORD dwBufLen=80*sizeof(TCHAR);
RegOpenKeyEx( HKEY_LOCAL_MACHINE,
_T("SYSTEM\\CurrentControlSet\\Control\\ProductOptions"),
0, KEY_QUERY_VALUE, &hKey );
RegQueryValueEx( hKey, _T("ProductType"), NULL, NULL,
(LPBYTE) szProductType, &dwBufLen);
RegCloseKey( hKey );
if ( lstrcmpi( _T("WINNT"), szProductType) == 0 )
tmp+=_stprintf( tmp, _T("Professional ") );
if ( lstrcmpi( _T("LANMANNT"), szProductType) == 0 )
tmp+=_stprintf( tmp, _T("Server ") );
if ( lstrcmpi( _T("SERVERNT"), szProductType) == 0 )
tmp+=_stprintf( tmp, _T("Advanced Server ") );
}
// Display version, service pack (if any), and build number.
if ( osvi.dwMajorVersion <= 4 )
{
tmp+=_stprintf ( tmp, _T("version %d.%d %s (Build %d)"),
osvi.dwMajorVersion,
osvi.dwMinorVersion,
osvi.szCSDVersion,
osvi.dwBuildNumber & 0xFFFF);
}
else
{
tmp+=_stprintf ( tmp, _T("%s (Build %d)"),
osvi.szCSDVersion,
osvi.dwBuildNumber & 0xFFFF);
}
break;
// Test for the Windows 95 product family.
case VER_PLATFORM_WIN32_WINDOWS:
if (osvi.dwMajorVersion == 4 && osvi.dwMinorVersion == 0)
{
tmp+=_stprintf ( tmp, _T("Microsoft Windows 95 ") );
if ( osvi.szCSDVersion[1] == 'C' || osvi.szCSDVersion[1] == 'B' )
tmp+=_stprintf( tmp, _T("OSR2 ") );
}
if (osvi.dwMajorVersion == 4 && osvi.dwMinorVersion == 10)
{
tmp+=_stprintf ( tmp, _T("Microsoft Windows 98 ") );
if ( osvi.szCSDVersion[1] == 'A' )
tmp+=_stprintf( tmp, _T("SE ") );
}
if (osvi.dwMajorVersion == 4 && osvi.dwMinorVersion == 90)
{
tmp+=_stprintf ( tmp, _T("Microsoft Windows Millennium Edition ") );
}
break;
}
if (tmp==buffer)
tmp+=_stprintf( tmp, _T("%d.%d build %d"), osvi.dwMajorVersion, osvi.dwMinorVersion, osvi.dwBuildNumber);
return TRUE;
}
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