Today’s Little Program lists all the open Explorer windows and their current sort criteria. (I will refrain from mentioning how auto-sort makes this meaningful.) Remember that Little Programs do little to no error checking. <\/p>\n
\n#define STRICT\n#include <windows.h>\n#include <ole2.h>\n#include <shlobj.h>\n#include <shdispid.h>\n#include <atlbase.h>\n#include <atlalloc.h>\n#include <stdio.h>\n\nvoid ProcessOneWindow(IUnknown *punk)\n{\n CComPtr<IShellBrowser> spsb;\n if (FAILED(IUnknown_QueryService(punk, SID_STopLevelBrowser,\n IID_PPV_ARGS(&spsb)))) return;\n\n CComPtr<IShellView> spsv;\n if (FAILED(spsb->QueryActiveShellView(&spsv))) return;\n\n CComQIPtr<IFolderView2> spfv(spsv);\n if (!spfv) return;\n\n CComHeapPtr<WCHAR> spszLocation;\n if (FAILED(GetLocationFromView<\/a>(spsb, &spszLocation))) return;\n\n printf(\"Location = %ls\\n\", static_cast<PCWSTR>(spszLocation));\n\n int cColumns;\n if (FAILED(spfv->GetSortColumnCount(&cColumns))) return;\n if (cColumns > 10) cColumns = 10;\n\n SORTCOLUMN rgColumns[10]; \/\/ arbitrary number\n spfv->GetSortColumns(rgColumns, cColumns);\n\n for (int i = 0; i < cColumns; i++) {\n PCWSTR pszDir = rgColumns[0].direction > 0 ? L\"ascending\"\n : L\"descending\";\n PCWSTR pszName;\n CComHeapPtr<WCHAR> spszName;\n WCHAR szName[PKEYSTR_MAX];\n if (SUCCEEDED(PSGetNameFromPropertyKey(rgColumns[0].propkey,\n &spszName))) {\n pszName = spszName;\n } else {\n PSStringFromPropertyKey(rgColumns[0].propkey,\n szName, ARRAYSIZE(szName));\n pszName = szName;\n }\n printf(\"Column = %ls, direction = %ls\\n\", pszName, pszDir);\n }\n}\n\nint __cdecl wmain(int, wchar_t **)\n{\n CCoInitialize<\/a> init;\n CComPtr<IShellWindows> spShellWindows;\n spShellWindows.CoCreateInstance(CLSID_ShellWindows);\n\n CComPtr<IUnknown> spunkEnum;\n spShellWindows->_NewEnum(&spunkEnum);\n CComQIPtr<IEnumVARIANT> spev(spunkEnum);\n\n for (CComVariant svar;\n spev->Next(1, &svar, nullptr) == S_OK;\n svar.Clear()) {\n ProcessOneWindow(svar.pdispVal);\n }\n return 0;\n}\n<\/pre>\nTo process a window, we first ask for the top-level browser, and from that we ask for the active shell view, then convert it to an IFolderView2<\/code>. We ask for the 2 because that’s the one that lets us query sort columns. <\/p>\nIf anything goes wrong up to this point, it’s probably because the window doesn’t support sorting, so we won’t bother printing it. <\/p>\n
We print the location of the window using a helper function from a long time ago. <\/p>\n
Now the interesting part: We ask for the number of sort columns, then ask for those columns. <\/p>\n
That’s it. The rest is boring again: We print each of the sort columns and the sort direction. <\/p>\n
The main program loops through all the open Shell windows (which includes both Explorer and Internet Explorer) and processes each one. <\/p>\n","protected":false},"excerpt":{"rendered":"
Ask for the sort criteria.<\/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-92721","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-oldnewthing","tag-code"],"acf":[],"blog_post_summary":"
Ask for the sort criteria.<\/p>\n","_links":{"self":[{"href":"https:\/\/devblogs.microsoft.com\/oldnewthing\/wp-json\/wp\/v2\/posts\/92721","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=92721"}],"version-history":[{"count":0,"href":"https:\/\/devblogs.microsoft.com\/oldnewthing\/wp-json\/wp\/v2\/posts\/92721\/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=92721"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/oldnewthing\/wp-json\/wp\/v2\/categories?post=92721"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/oldnewthing\/wp-json\/wp\/v2\/tags?post=92721"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}