Dealing with Unicode Filenames

[Harrison]

Alright, I've found this thread and this page, and neither seem to be helping me at all.

From what I've read, if a filename contains a unicode character, it needs to be converted to UTF-8. This is an example of how my code was before:

if OpenDialog.Execute then
  begin
    LoadedFile := TMemoryStream.Create;

    LoadedFile.LoadFromFile(OpenDialog.FileName);
  end;

Of course, when loading a file with a unicode character in its name, it would error and say that it could not be opened. So I tried this:

if OpenDialog.Execute then
  begin
    LoadedFile := TMemoryStream.Create;

    LoadedFile.LoadFromFile(SysToUTF8(OpenDialog.FileName));
  end;

But it still errored. I also tried AnsiToUTF8, and as a last ditch effort, ExpandFileNameUTF8, but they all resulted in the same error.

So, what am I missing? From what I'm reading, this should be right, shouldn't it?

[theo]

UTF8ToSys

[Harrison]

  That worked. Mind explaining to me why it seems to be backwards than what the page is saying?

[theo]

That worked. Mind explaining to me why it seems to be backwards than what the page is saying?

It's not. It's saying:

Lazarus controls and functions expect filenames and directory names in utf-8 encoding, but the RTL uses ansi strings for directories and filenames.

You get the name from a lazarus control (OpenDialog) in UTF8 and pass it to a RTL Function.
So UTF8ToSys is needed.