Iterating through directories and volumes

TDirectoryIterator iterates over the files and directories contained within a TDirectory instance. Instances of TDirectoryIterator do not iterate over subdirectories within the target directory.

TDirectoryTreeIterator iterates over files and directories within a TDirectory instance and includes subdirectories. TDirectoryTreeIterator traverses subdirectories completely as it encounters them.

TVolumesIterator iterates over all files and directories on all mounted volumes.

TParentlessDirectoriesIterator iterates over all parentless (topmost or "root") directories on all mounted volumes.