The following code is supposed to print all folder names of a folder but it does not work.
Why?

Change the folder in main() to a folder suitable for your system so as to test it.

I created this proof-of-concept example, because I encountered similar recursion problems
in a more complex project.

#using <mscorlib.dll>

// Displays the full names of all contained folders and subfolders *recursively*
void DisplayFolderNames(System::String *folderName)
{
    using namespace System;
    using namespace System::IO;

    DirectoryInfo * const dir= __gc new DirectoryInfo(folderName);

    if(!dir->Exists)
     return;
   
    // Print contained folder names
    DirectoryInfo *dirDirects[]= dir->GetDirectories();

    if(dirDirects->Count== 0)
     return;
   
    for(long i=0; i<dirDirects->Count; ++i)
    {
        Console::WriteLine("{0}", dirDirects[i]->FullName);

        DisplayFolderNames(dirDirects[i]->FullName);
    }
   
}

int main()
{
    DisplayFolderNames(S"D:\\extract\\temp");
}