FindNextFile

I just realized that if a fatal error occurs (however unlikely) the directories won't be closed properly. I added a helper class to take care of that, though.

Originally Posted by bithub

Since the documentation for FindNextFile() doesn't say anything one way or the other, relying on it to return ERROR_SUCCESS is bad program design. There is no requirement at all that the function set ERROR_SUCCESS on a successful call.

Which is why I call

SetLastError(ERROR_SUCCESS);

after I have found and processed a file successfully (and just before I check for more files).

FindNextFile() docs say it sets the errors.

Originally Posted by MSDN

If the function fails, the return value is zero. To get extended error information, call GetLastError. If no matching files can be found, the GetLastError function returns ERROR_NO_MORE_FILES.