WindowsAPICodePack.Shellを使ってライブラリのDefaultSaveFolderを取得する

GetLibrariesDefaultSaveFolder.cs

using System;
using Microsoft.WindowsAPICodePack.Shell;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            using (var lib = ShellLibrary.Load(KnownFolders.PicturesLibrary, true))
            {
                Console.WriteLine(lib.DefaultSaveFolder);
            }
        }
    }
}