FDI allows to have user-defined callbacks for file handling.
Since it doesn't provide support for Unicode we convert strings to
multi-byte UTF-8 and handle them appropriately in the callbacks. They
are properly null-terminated so FDI won't choke when doing operations
with strings.
Thanks to hbelusca and mjansen for the help.
CORE-14466
- Added a 'Selected for installation' category that shows what was selected.
Selection is now kept between categories.
- New string is added to resources.
ru-RU.rc and uk-UA.rc strings are translated.
CORE-13789
