stringc currentDirectory = device->getFileSystem()->getWorkingDirectory();
device->getFileSystem()->changeWorkingDirectoryTo(stringc(destinationDirectory));

IFileList* list = device->getFileSystem()->createFileList();

for(unsigned int i = 0; i < list->getFileCount(); i ++)
{
if(list->isDirectory(i))
{
  cout << "Dir: " << list->getFilename(i) << endl;
}
else
{
  cout << "File: " << list->getFilename(i) << endl;
}
}

//ganz wichtig: auch wieder zurück ins ursprungsverzeichnis wechseln!
device->getFileSystem()->changeWorkingDirectoryTo(currentDirectory);