[Lazarus] FileExistsUTF8 and long paths

[Bart]

On 1/15/16, Jürgen Hestermann <juergen.hestermann at gmx.de> wrote:

> Why not prepend "\\?\" at this last Windows step so it works for long paths

This will break existing programs, including the ide.

Currently you can use both / and \ in filenames on Wndows filename
functions, because the API does not care.
That is unlues you prepend \\?\, then character in the given string
MUST be in the filename.
Also this will then return false on '..\foo.bar', sincenow te APi
expects that the two dots are part of the filename.

See the comments in ExpandFilenameUTF8 (I think I put a reference there).

Bart