Question on size information in fx_directory_information_get and fx_directory_next_full_entry_find

[sonmara]

In the filex documentation of service fx_directory_next_full_entry_find it says the following:

size: If non-null, pointer to the destination for the entry's size in bytes.

Is it correct, that for entries being a directory the size is always zero and not the accumulated size of its content?
The same behaviour is observed for fx_directory_information_get

[XingYeKM]

对于嵌入式文件系统，目前我接触到的几个，例如dosFs，在直接列出目录条目时，大小都为零，不止FileX是这样。