{"id":1493,"date":"2014-03-17T07:00:00","date_gmt":"2014-03-17T07:00:00","guid":{"rendered":"https:\/\/blogs.msdn.microsoft.com\/oldnewthing\/2014\/03\/17\/how-do-i-show-the-contents-of-a-directory-while-respecting-the-users-preferences-for-hidden-and-super-hidden-files-as-well-as-the-users-language-preferences\/"},"modified":"2014-03-17T07:00:00","modified_gmt":"2014-03-17T07:00:00","slug":"how-do-i-show-the-contents-of-a-directory-while-respecting-the-users-preferences-for-hidden-and-super-hidden-files-as-well-as-the-users-language-preferences","status":"publish","type":"post","link":"https:\/\/devblogs.microsoft.com\/oldnewthing\/20140317-00\/?p=1493","title":{"rendered":"How do I show the contents of a directory while respecting the user's preferences for hidden and super-hidden files as well as the user's language preferences?"},"content":{"rendered":"

\nA customer was writing a program in (and this is what they said)\n“32 bit C++ .Net 4.0”\nwhich displayed the contents of\na directory,\nand they wanted to filter out items such as hidden files\nand protected operating system files\n(also known as super-hidden<\/i> files)\nbased on the user’s current Explorer preferences.\nFurthermore, they wanted to show localized folder names,\nsuch as Usarios<\/i> instead of Users<\/i>,\nagain, the same way Explorer does.\nThey are currently using\nDirectory.Get­Directories()<\/code>.\n<\/p>\n

\nThe way to do this is to use\nIShell­Folder::Enum­Object<\/code>,\nthe same way Explorer does.\nDon’t pass\nSHCONTF_INCLUDE­HIDDEN<\/code>\nor\nSHCONTF_INCLUDE­SUPER­HIDDEN<\/code>,\nand you will get the default enumeration that filters out\nhidden items based on the user’s preferences.\n(You pass the flag to force the items to be included,\noverriding the user’s preferences.)\nand the names of the items that come out of the enumeration\nwill be the localized names.\nYou can ask for the parsing name to get the physical file name.\n<\/p>\n

\n#define UNICODE\n#define _UNICODE<\/a>\n#define STRICT\n#define STRICT_TYPED_ITEMIDS<\/a>\n#include <windows.h>\n#include <shlobj.h>\n#include <atlbase.h>\n#include <atlalloc.h>\nint __cdecl wmain(int argc, wchar_t **argv)\n{\n CCoInitialize<\/a> init;\n if (argc < 2) return 0;\n CComHeapPtr<ITEMIDLIST_ABSOLUTE> sppidl;\n CComPtr<IShellFolder> spsf;\n CComPtr<IEnumIDList> speidl;\n if (FAILED(SHParseDisplayName(argv[1], nullptr,\n                               &sppidl, 0, nullptr)) ||\n     FAILED(SHBindToObject(nullptr, sppidl,\n                           nullptr, IID_PPV_ARGS(&spsf))) ||\n     FAILED(spsf->EnumObjects(nullptr,\n               SHCONTF_FOLDERS | SHCONTF_NONFOLDERS, &speidl)) ||\n     speidl == nullptr) return 0;\n for (CComHeapPtr<ITEMID_CHILD> sppidlItem;\n      speidl->Next(1, &sppidlItem, nullptr) == S_OK;\n      sppidlItem.Free()) {\n  PrintDisplayName<\/a>(spsf, sppidlItem, SHGDN_NORMAL, L\"Display Name\");\n  PrintDisplayName(spsf, sppidlItem, SHGDN_FORPARSING, L\"For Parsing\");\n  wprintf(L\"\\n\");\n }\n}\n<\/pre>\n
\nThe program takes a fully-qualified path on the command line\nand displays its contents (both in localized display name and\nin raw file system paths) while respecting the user’s preferences\nfor hidden and super-hidden files.\n<\/p>\n
\nIt appears that the customer is writing their program in C#,\ndespite their claim that they were using C++\n(or maybe they meant MC++ or C++\/CLI).\nIn that case, they can use the\nWindows 7 API CodePack for Microsoft® .NET Framework<\/i>\n(gotta love that\n\ncatchy name<\/a>).<\/p>\n","protected":false},"excerpt":{"rendered":"
A customer was writing a program in (and this is what they said) “32 bit C++ .Net 4.0” which displayed the contents of a directory, and they wanted to filter out items such as hidden files and protected operating system files (also known as super-hidden files) based on the user’s current Explorer preferences. Furthermore, they […]<\/p>\n","protected":false},"author":1069,"featured_media":111744,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[25],"class_list":["post-1493","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-oldnewthing","tag-code"],"acf":[],"blog_post_summary":"
A customer was writing a program in (and this is what they said) “32 bit C++ .Net 4.0” which displayed the contents of a directory, and they wanted to filter out items such as hidden files and protected operating system files (also known as super-hidden files) based on the user’s current Explorer preferences. Furthermore, they […]<\/p>\n","_links":{"self":[{"href":"https:\/\/devblogs.microsoft.com\/oldnewthing\/wp-json\/wp\/v2\/posts\/1493","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/devblogs.microsoft.com\/oldnewthing\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/devblogs.microsoft.com\/oldnewthing\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/oldnewthing\/wp-json\/wp\/v2\/users\/1069"}],"replies":[{"embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/oldnewthing\/wp-json\/wp\/v2\/comments?post=1493"}],"version-history":[{"count":0,"href":"https:\/\/devblogs.microsoft.com\/oldnewthing\/wp-json\/wp\/v2\/posts\/1493\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/oldnewthing\/wp-json\/wp\/v2\/media\/111744"}],"wp:attachment":[{"href":"https:\/\/devblogs.microsoft.com\/oldnewthing\/wp-json\/wp\/v2\/media?parent=1493"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/oldnewthing\/wp-json\/wp\/v2\/categories?post=1493"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/oldnewthing\/wp-json\/wp\/v2\/tags?post=1493"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}