{"provider_name":"Hatena Blog","description":"\u8ffd\u8a1820240902 \u73fe\u884c\u306eC# 12\u3067\u306fNull\u8a31\u5bb9\u578b\u3001IntPtr\u306e\u4ee3\u308f\u308a\u306b\u306fnint\u304c\u4f7f\u3048\u307e\u3059\u3002SHGetKnownFolderPath\u95a2\u6570\u306eP/Invoke\u3067\u306f[MarshalAs(UnmanagedType.LPWStr)] out string ppszPath\u3067\u6587\u5b57\u5217\u53d6\u5f97\u3068\u30e1\u30e2\u30ea\u89e3\u653e\u304c\u53ef\u80fd\u3067\u3059\u3002 C# 9.0 using System; using System.Diagnostics.CodeAnalysis; using System.Runtime.InteropServices; var FOLDERID_DocumentsLibrary = new Guid(\"{7B0\u2026","categories":["C#","Windows"],"version":"1.0","published":"2016-07-28 00:00:00","blog_title":"potisan\u306e\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u30e1\u30e2","title":"C# 4.5,9 FOLDERID\u304b\u3089\u30d5\u30a9\u30eb\u30c0\u306e\u30d1\u30b9\u3092\u53d6\u5f97\u3059\u308b","width":"100%","type":"rich","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fpotisan-programming-memo.hatenablog.jp%2Fentry%2F2016%2F07%2F28%2F000000_1\" title=\"C# 4.5,9 FOLDERID\u304b\u3089\u30d5\u30a9\u30eb\u30c0\u306e\u30d1\u30b9\u3092\u53d6\u5f97\u3059\u308b - potisan\u306e\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u30e1\u30e2\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_url":"https://hatena.blog","url":"https://potisan-programming-memo.hatenablog.jp/entry/2016/07/28/000000_1","author_name":"potisan","blog_url":"https://potisan-programming-memo.hatenablog.jp/","author_url":"https://blog.hatena.ne.jp/potisan/","height":"190","image_url":null}