Check Windows OS version

gistfile1.txt

// test.cpp : 定义控制台应用程序的入口点。
//

#include "stdafx.h"

#include <Windows.h>
#include <string>
#include <iostream>


bool IsVistaOrLater() {
	OSVERSIONINFO osvi = { sizeof(OSVERSIONINFO) };
	GetVersionEx(&osvi);
	return osvi.dwMajorVersion >= 6;
}


bool IsWin8_1OrLater()
{
	typedef void(__stdcall*NTPROC)(DWORD*, DWORD*, DWORD*);
	HINSTANCE hinst = LoadLibraryA("ntdll.dll");
	DWORD dwMajor, dwMinor, dwBuildNumber;
	NTPROC func = (NTPROC)GetProcAddress(hinst, "RtlGetNtVersionNumbers");
	if (!func) {
		FreeLibrary(hinst);
		return false;
	}
	func(&dwMajor, &dwMinor, &dwBuildNumber);
	FreeLibrary(hinst);
	if (dwMajor == 6 && dwMinor == 3) //win 8.1
		return true;
	if (dwMajor >= 10)
		return true;
	return false;
}

int main()
{
	printf("IsVistaOrLater() = %s.\n", IsVistaOrLater() ? "true" : "false");
	printf("IsWin8_1OrLater() = %s.\n", IsWin8_1OrLater() ? "true" : "false");
	getchar();
	return 0;
}