VC获得window操作系统版本号, 获取操作系统位数

原文链接: 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;//定义OSVERSIONINFO数据结构对象
memset(&osvi, 0, sizeof(OSVERSIONINFO));//开空间
osvi.dwOSVersionInfoSize = sizeof (OSVERSIONINFO);//定义大小
GetVersionEx (&osvi);//获得版本信息
dwMajorVersion=osvi.dwMajorVersion;//主版本号
dwMinorVersion=osvi.dwMinorVersion;//副版本
dwBuildNumber=osvi.dwBuildNumber;//创建号
dwPlatformId=osvi.dwPlatformId;//ID号
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

// 安全的取得真实系统信息
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);
}
}

// 获取操作系统位数
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); //获得操作系统名称

int lzBit=GetSystemBits(); // 获取操作系统位数

}