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

namespace WindowsFormsApp1
{
    public struct Result
    {
        public string Name;
        public bool Ok;
    }

    public static class Verifier
    {
        // 声明 LoadLibrary 函数
        [DllImport("kernel32.dll", CharSet = CharSet.Unicode)]
        public static extern IntPtr LoadLibrary(string lpFileName);

        // 声明 FreeLibrary 函数
        [DllImport("kernel32.dll")]
        public static extern bool FreeLibrary(IntPtr hModule);

        public static List<Result> Check(List<string> libraries)
        {
            return libraries.Select(library =>
            {
                return new Result
                {
                    Name = library,
                    Ok = LoadLibraryTest(library),
                };
            }).ToList();
        }

        public static bool LoadLibraryTest(string library)
        {
            IntPtr dllHandle = IntPtr.Zero;

            try
            {
                dllHandle = LoadLibrary(library);
                if (dllHandle == IntPtr.Zero)
                {
                    return false;
                }

                return true;
            }
            finally
            {
                if (dllHandle != IntPtr.Zero)
                {
                    FreeLibrary(dllHandle);
                }
            }
        }
    }
}