libGLOV exploreTo implementation example

explore_to.cpp

// Path to directory, or file, but not to a "." (e.g. c:/foo/.)
void exploreTo(const char *localfname) {
	wchar_t *path = utf8ToWideAlloc(localfname);
	for (wchar_t *s = path; *s; ++s)
		if (*s == '/')
			*s = '\\';
	// Remove trailing backslash, FindFirst will fail
	if (path[wcslen(path) - 1] == '\\') {
		path[wcslen(path) - 1] = '\0';
	}
	WIN32_FIND_DATAW find_data = {};
	HANDLE find_result = FindFirstFileW(path, &find_data);
	if (find_result == INVALID_HANDLE_VALUE) {
		printf("Failed to explore to file \"%s\": Does not exist\n", localfname);
		return;
	}
	bool is_dir = !!(find_data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY);
	FindClose(find_result);
	CoInitializeEx(0, COINIT_MULTITHREADED);
	PIDLIST_ABSOLUTE pidl = ILCreateFromPathW(path);
	if (pidl) {
		int cidl = 0;
		LPCITEMIDLIST *apidl = NULL;
		if (is_dir) {
			// Select 1 NULL element, because if cidl == 0, then it opens the parent and selects the folder
			static LPCITEMIDLIST null_carr[1] = { NULL };
			cidl = 1;
			apidl = &null_carr[0];
		}
		HRESULT hr = SHOpenFolderAndSelectItems(pidl, cidl, apidl, 0);
		if (hr != S_OK) {
			printf("Failed to explore to file %s\n", localfname);
		// 	// From Chromium: On some systems, the above call mysteriously fails with "file not
		// 	// found" even though the file is there.  In these cases, ShellExecute()
		// 	// seems to work as a fallback (although it won't select the file).
		// 	if (hr == ERROR_FILE_NOT_FOUND) {
		// 		ShellExecuteW(NULL, "open", dirname, NULL, NULL, SW_SHOW);
		// 	}
		}
		ILFree(pidl);
	}
	free(path);
}

Taken from utilSystem.cpp in libGlov - MIT Licensed, available at: svn://www.dashingstrike.com/src/GLOV/libUtil/utilSystem.cpp