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//---------------------------------------------------------------------------
// Copyright (C) 1998, Interscope Ltd. All rights reserved.
// Reproduction or distribution of this program, or any portion of it,
// is permitted only if this header is kept as it is.
// For more information, contact:
//
// Interscope Ltd., 5 Culturii St., 5th Floor, 4800 Baia Mare, RO
// Phone/Fax: +40-62-215023
// E-mail: office@interscope.ro
//
// $Author: Levente Farkas $
// $Date: 5/12/98 11:50p $
// $Modtime: 4/30/98 8:22a $
// $Revision: 23 $
// $Archive: /Interscope/Thebe/InstallMaster/OSVersion.cpp $
// $Workfile: OSVersion.cpp $
//---------------------------------------------------------------
// 4 more details about API calls in this module, see
// Knowledge Base Atricle Q113998 and
// Knowledge Base Atricle Q114470 on
// Microsoft Development Library (October 1995)
#ifdef __STDAFX__
#include "StdAfx.H"
#endif
#include "Portable.H"
#include "AssertX.H"
#include "OSVersion.Hpp"
//--- Debugee --------------------------------------------------------------
#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#ifdef __MFC__
#define new DEBUG_NEW
#endif // __MFC__
#endif // _DEBUG
//--- Some types and consts -----------------------------------
#define WNNC_NET_MULTINET 0x8000
#define WNNC_SUBNET_WINWORKGROUP 0x0004
#define WNNC_NET_TYPE 0x0002
typedef WORD (WINAPI *NETCAPFUNC)(int);
//-------------------------------------------------------------
// Pre :
// Post :
// Globals :
// I/O :
// Task : Constructs and OS version class and extracts all the
// version information necessary
//-------------------------------------------------------------
COSVersion::COSVersion():
m_nOSType(OS_UNKNOWN),
m_nWinType(WIN_UNKNOWN),
m_dwVersion(GetVersion())
{
#if defined(__WIN32__) || defined(_WIN32) // 32-bit platform
osvi.dwOSVersionInfoSize =sizeof(osvi);
GetVersionEx(&osvi);
// Test 4 NT/NTS/NTAS by the highest bit of the version
if(m_dwVersion & 0x80000000)
{
// This is not NT
// Check major version number 2 distinguish between
// WIN32s (Win 3.X) and WIN32c (Win 95)
if(LOBYTE(LOWORD(m_dwVersion)) <= 3)
{
m_nWinType =WIN_32S;
// Determine if Win 3.X or WFW
if(IsWindows4Workgroups(MEHOD_FILEVERSION))
m_nOSType =OS_WFW;
else if(IsWindows4Workgroups(METHOD_MULTINET))
m_nOSType =OS_WFW;
else
m_nOSType =OS_WIN3X;
}
else
{
m_nWinType =WIN_32C;
// Determine if Win95 or Win98
// Note: We consider Win98 from beta 2 up (4.10.1650)
ASSERTX(osvi.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS);
if(osvi.dwMinorVersion == 0)
m_nOSType =OS_WIN95;
else
m_nOSType =OS_WIN98;
}
}
else
{
// Must be NTWS, NTS or NTAS
// Check the registry 2 distinguish between them
HKEY hKey;
BYTE szValue[128];
DWORD dwSize =sizeof(szValue);
RegOpenKeyEx(HKEY_LOCAL_MACHINE,_T("SYSTEM\\CurrentControlSet\\Control\\ProductOptions"),
0,KEY_READ,&hKey);
RegQueryValueEx(hKey,_T("ProductType"),0,NULL,szValue,&dwSize);
RegCloseKey(hKey);
if(!STRICMP((TCHAR *)&szValue[0],_T("WinNT")))
// WinNT (Windows NT Workstation)
m_nOSType =OS_WINNTWS;
else if(!STRICMP((TCHAR *)&szValue[0],_T("ServerNT")))
// ServerNT (Windows NT Server)
m_nOSType =OS_WINNTS;
else
// LanmanNT (Windows NT Advanced Server)
m_nOSType =OS_WINNTAS;
m_nWinType =WIN_32;
}
#else // 16-bit platform
// For 16-bit code, use GetWinFlags 2 find out if running on the
// Windows on Windows layer of NT/NTAS
if(GetWinFlags() & 0x4000)
m_nOSType =OS_WINNTWS;
else
{
// Check version number 2 distinguish between Win 3.X and Win 95
if((LOBYTE(LOWORD(dwVersion)) > 3) ||
(HIBYTE(LOWORD(dwVersion)) > 50))
// Windows 95
m_nOSType =OS_WIN95;
else
{
// Determine if Win 3.X or WFW
if(IsWindows4Workgroups(MEHOD_FILEVERSION))
m_nOSType =OS_WFW;
else if(IsWindows4Workgroups(METHOD_MULTINET))
m_nOSType =OS_WFW;
else
m_nOSType =OS_WIN3X;
}
}
m_nWinType =WIN_16;
#endif
}
//-------------------------------------------------------------
// Pre : Check method
// Post :
// Globals :
// I/O :
// Task : Checks if running on Windows 4 Workgroups
//-------------------------------------------------------------
BOOL COSVersion::IsWindows4Workgroups(unsigned short usMethod) {
WORD wNetType;
DWORD dwVerSize, dwVerHandle;
HANDLE hMem;
VS_VERSION FAR *lpVerInfo;
BOOL bWfW =FALSE;
if(usMethod == METHOD_MULTINET)
{
// Use the method that checks 4 multinet driver
HINSTANCE hLib =LoadLibrary((LPTSTR)"USER.EXE");
if((WORD)hLib >= (WORD)HINSTANCE_ERROR)
{
// Check if library loaded OK
NETCAPFUNC lpWNetGetCaps =(NETCAPFUNC)GetProcAddress(hLib,_T("WNetGetCaps"));
if(lpWNetGetCaps != NULL)
{
wNetType =(*lpWNetGetCaps)(WNNC_NET_TYPE);
if((wNetType & WNNC_NET_MULTINET) &&
(LOBYTE(wNetType) & WNNC_SUBNET_WINWORKGROUP))
// Yes, it is Windows 4 Workgroups
bWfW =TRUE;
}
if(hLib)
FreeLibrary(hLib);
}
}
else
{
// Use the method that checks the fileversion of USER.EXE
// Allocate memory 4 the file info struct
dwVerSize =GetFileVersionInfoSize(_T("USER.EXE"),&dwVerHandle);
hMem =GlobalAlloc(GMEM_MOVEABLE,dwVerSize);
if(hMem != NULL)
{
lpVerInfo =(VS_VERSION FAR *)GlobalLock(hMem);
// Get the file version
// in Win32, the dwVerHandle is zero, ignored
if(GetFileVersionInfo(_T("USER.EXE"),dwVerHandle,dwVerSize,lpVerInfo))
if((HIWORD(lpVerInfo->vffInfo.dwProductVersionMS) == 3) &&
(LOWORD(lpVerInfo->vffInfo.dwProductVersionMS) == 11))
// Yes, it is Windows 4 Workgroups
bWfW =TRUE;
GlobalUnlock(hMem);
GlobalFree(hMem);
}
}
return bWfW;
}
//-------------------------------------------------------------
// Pre :
// Post :
// Globals :
// I/O :
// Task : Get OS major version number
//-------------------------------------------------------------
DWORD COSVersion::GetMajorVersion() const
{
#if defined(__WIN32__) || defined(_WIN32)
return osvi.dwMajorVersion;
#else
return (DWORD)(LOBYTE(LOWORD(dwVersion)));
#endif
}
//-------------------------------------------------------------
// Pre :
// Post :
// Globals :
// I/O :
// Task : Get OS minor version number
//-------------------------------------------------------------
DWORD COSVersion::GetMinorVersion() const
{
#if defined(__WIN32__) || defined(_WIN32)
return osvi.dwMinorVersion;
#else
return (DWORD)(HIBYTE(LOWORD(dwVersion)));
#endif
}
#if defined(__WIN32__) || defined(_WIN32)
//-------------------------------------------------------------
// Pre :
// Post :
// Globals :
// I/O :
// Task : Get the build number of the OS
//-------------------------------------------------------------
DWORD COSVersion::GetBuildNumber() const
{
return (m_nOSType & OS_WINNT) ? osvi.dwBuildNumber : LOWORD(osvi.dwBuildNumber);
}
#endif
#if defined(__WIN32__) || defined(_WIN32)
//-------------------------------------------------------------
// Pre :
// Post :
// Globals :
// I/O :
// Task : Get the special version data (string got from GetVersionEX)
//-------------------------------------------------------------
LPCTSTR COSVersion::GetSpecialVersion() const
{
return osvi.szCSDVersion;
}
#endif