Question

为什么我在此代码中有一个EntryPointNotFoundException。（来源pinvoke.net）我的操作系统是Windows XP SP3。

using System;
using System.Collections.Generic;
using System.Text;
using System.Runtime.InteropServices;

namespace System_Info
{
    class Program
    {
        [DllImport("kernel32.dll", SetLastError = false)]
        static extern bool GetProductInfo(
             int dwOSMajorVersion,
             int dwOSMinorVersion,
             int dwSpMajorVersion,
             int dwSpMinorVersion,
             out int pdwReturnedProductType);

        static void Main(string[] args)
        {

            int ProductNum;

            GetProductInfo(
             Environment.OSVersion.Version.Major,
             Environment.OSVersion.Version.Minor,
             0,
             0,
             out ProductNum);

            Console.WriteLine(Environment.OSVersion.Version.Build);
            Console.WriteLine(Environment.OSVersion.Version.Major);
            Console.WriteLine(Environment.OSVersion.Version.MajorRevision);
            Console.WriteLine(Environment.OSVersion.Version.Minor);
            Console.WriteLine(Environment.OSVersion.Version.MinorRevision);
            Console.WriteLine(Environment.OSVersion.Version.Revision);

            Console.WriteLine(ProductNum);

            Console.ReadKey();
        }
    }
}

此致

弗洛里安

Answer 1

根据this，它仅支持Vista或Windows Server 2008.（请参阅要求部分）

Answer 2

好像你应该这样做：

        OperatingSystem os = Environment.OSVersion;
        Version osVer = os.Version;
        Console.WriteLine(osVer.Build);
        Console.WriteLine(osVer.Major);
        Console.WriteLine(osVer.MajorRevision);
        Console.WriteLine(osVer.Minor);
        Console.WriteLine(osVer.MinorRevision);
        Console.WriteLine(osVer.Revision);

如果它是您要查找的信息（而不是测试pInvoke）。

System.EntryPointNotFoundException和DllImport（“kernel32.dll”）

2 个答案: