VC obtains the Window OS version number, gets the operating system bit number

Original link: http://www.greensoftcode.net/techntxt/2014315195331643021849

#include <Windows.h>
Include <stdio.h>
#include <tchar.h>
#include <conio.h>

#include "stdafx.h"
#include "OsVersion.h"
#include "OsVersionDlg.h"

void Getosversion (char* szosname)
{
DWORD dwMajorVersion;
DWORD dwminorversion;
DWORD dwBuildNumber;
DWORD dwPlatformId;
osversioninfo osvi;//defining OSVERSIONINFO data Structure objects
memset (&OSVI, 0, sizeof (OSVERSIONINFO));//Open Space
osvi.dwosversioninfosize = sizeof (OSVERSIONINFO);//define Size
GetVersionEx (&OSVI);//Get version information
dwmajorversion=osvi.dwmajorversion;//Major Version number
dwminorversion=osvi.dwminorversion;//Sub-version
dwbuildnumber=osvi.dwbuildnumber;//Create number
dwplatformid=osvi.dwplatformid;//id No.
Char swversion[10]={0};
sprintf (swversion, "%d.%d", dwmajorversion,dwminorversion);
//Dwvesion=atoi (swversion);
 
if (!strcmp (swversion, "4.0")) strcpy (Szosname, "Win95"); Win95
if (!strcmp (swversion, "4.1")) strcpy (Szosname, "Win98"); Win98
if (!strcmp (swversion, "4.9")) strcpy (Szosname, "Win_me"); Win_me
if (!strcmp (swversion, "3.51")) strcpy (Szosname, "win_nt_3_5"); Win_nt_3_5
if (!strcmp (swversion, "5.0")) strcpy (Szosname, "Win2000"); Win2000
if (!strcmp (swversion, "5.1")) strcpy (Szosname, "win_xp"); WIN_XP
if (!strcmp (swversion, "5.2")) strcpy (Szosname, "win2003"); Win2003
if (!strcmp (swversion, "6.6")) strcpy (Szosname, "Vista"); Vista
if (!strcmp (swversion, "6.1")) strcpy (Szosname, "Win7"); Win7
if (!strcmp (swversion, "6.1")) strcpy (Szosname, "Win8"); Win8
 

}

#define __IN
#define __out
 
#define MS_PROCESSOR_ARCHITECTURE_IA64 6
#define MS_PROCESSOR_ARCHITECTURE_AMD64 9
 
//secure access to real system Information
VOID safegetnativesysteminfo (__out lpsystem_info lpsysteminfo)
{
if (null==lpsysteminfo) return;
typedef VOID (WINAPI *lpfn_getnativesysteminfo) (Lpsystem_info lpsysteminfo);
lpfn_getnativesysteminfo fngetnativesysteminfo = (lpfn_getnativesysteminfo) GetProcAddress (GetModuleHandle (_T ( "Kernel32")), "Getnativesysteminfo");;
if (NULL! = fngetnativesysteminfo)
 {
Fngetnativesysteminfo (lpsysteminfo);
 }
Else
 {
GetSystemInfo (lpsysteminfo);
 }
}

Get the number of operating system bits
int Getsystembits ()
{
System_info si;
Safegetnativesysteminfo (&SI);
if (si.wprocessorarchitecture = = Ms_processor_architecture_amd64 | |
Si.wprocessorarchitecture = = ms_processor_architecture_ia64)

{
return 64;
}
return 32;
}

void Cosversiondlg::onbutton1 ()
{
Todo:add your control notification handler code here
Char szosversion[40]={0};
Getosversion (szosversion); Get the operating system name

int lzbit=getsystembits (); Get the number of operating system bits

}

VC obtains the Window OS version number, gets the operating system bit number