// Code from
// A Programmer's Introduction to C# 2.0, Third Edition
// copyright 2000 Eric Gunnerson
using System;
using System.Runtime.InteropServices;
unsafe struct OSVERSIONINFO
{
public uint dwOSVersionInfoSize;
public uint dwMajorVersion;
public uint dwMinorVersion;
public uint dwBuildNumber;
public uint dwPlatformId;
public fixed char szCSDVersion[128];
}
class Program{
[DllImport("Kernel32.dll", CharSet = CharSet.Unicode)]
static extern bool GetVersionEx(ref OSVERSIONINFO lpVersionInfo);
unsafe static void Main(string[] args)
{
OSVERSIONINFO versionInfo = new OSVERSIONINFO();
versionInfo.dwOSVersionInfoSize = (uint)sizeof(OSVERSIONINFO);
bool res = GetVersionEx(ref versionInfo);
Console.WriteLine(Marshal.PtrToStringUni(new IntPtr(versionInfo.szCSDVersion)));
}
}
