Iterate through directory Windows 8 Apps

Question

Hello,

I am trying to recursively iterate through a directory for a c++ windows 8 App, I've tried 3rd party API's which fail certification and headers such as dirent.h are not available. Is there a better option to iterate through a directory to get a list of files and subdirectories than using StorageFolder/File? 

Answer 1

Where is the directory you are enumerating?

Your app has permissions to read its app install and to read and write its app data directory. It can use standard C runtime functions to iterate through these directories.

Your app doesn't have permissions to access other directories and must use the file broker via the StorageFolder and StorageFile classes.

--Rob

Answer 2

It is trying to access the apps root sub-directory that it is installed on, it just reads the files/directories and prints a list, I have tried using DIR and dirent to access these directories as well as other methods within the 3rd party BOOST library such as FindFirstFileW, etc... the following location I am trying to access is a sub-directory of: Windows::ApplicationModel::Package::Current->InstalledLocation

Answer 3

Whoops. You're right. There is no standard C or C++ implementation for directories, only for files.

You will need to use OS provided API, which for Windows Store apps means StorageFolder. You can use C runtime functions such as fopen on the files within the folder.

--Rob

Answer 4

Ah got it, so basically the only way it would be able to do this is if I use something like:

StorageFolder ^ currentDirectory = StorageFolder::GetFolderFromPathAsync(newBasePath);

and also somehow (like c#) would need to await this method (except in c++ there is no await)

Then use:  auto currentDirectoryEntries = currentDirectory->getFilesAsync();

To return all files and iterate that way... are there methods to tell if it is a File/Directory like: S_ISDIR/S_ISREG?