AutoHotkey Community

Can you let me know how to convert UTF-16(LE) encoded hexadecimal value to UTF-16(LE) string? (LE : little endian)

This is exactly same as {U+nnnn} in Autohotkey_L or 'BinaryToString("0xnnnn",2)' function in AutoIt.
(nnnn is hexadecimal value which is encoded as UTF-16 little endian)

But, there's only "SendInput" function in Autohotkey_L.
I don't want to send string to anywhere,
and I prefer to use Autohotkey basic(first) or Autohotkey_L(second), not AutoIt, if possible.

Actually, I'm gonna get a filename from Windows 7 registry.
But, this filename is written as REG_BINARY type
and encoded as UTF-16 little endian that Windows uses.

After getting a filename, I'll use this filename as following:

//---
RegRead, filename_hex, HKEY_CURRENT_USER, ...
filename := BinaryToUTF16String(filename_hex) ------ (0)

loop, read, %filename% ------ (1)
...
fileappend, %text%, %filename% ------ (2)
...
---//

All I need is function 'BinaryToUTF16String' of part '(0)'.
Example of filename_hex: nnnnmmmmoooopppp....
Each four hexadecimal digits (nnnn, mmmm, oooo, pppp, ...) means one UTF-16 character seperately.
A length of filename_hex is four times of length of filename.

I've already seen this link
http://www.autohotkey.com/forum/topic58 ... t=hextobin
and tried 'Hex2Bin' and 'Utf8ToAnsi' function and 'StrGet' of Autohotkey_L but failed.

I think this is not a difficult problem,
but I'm just a beginner so I beg your help.

What you need is HexToBin. This works on AHK Basic:

I really appreciate your reply.

As I said, I've already tried Laszlo's 'HexToBin' function you introduced in another post 'Hexadecimal UTF-8 coding'.
But I couldn't check a proper result because I used 'MsgBox' embedded in AHK basic.
Now I got a proper result 'Hello, world!' through 'MessageBoxW' as you replied.

One more thing,
As I said, my goal was to use this filename in my AHK basic script like example (1) or (2) of my post.
Thank to your reply, I realized UTF-16 encoded string should be converted to ansi string to be used in AHK basic script.
So I used 'Unicode2Ansi' function of a post titled 'Helper script to convert from one to another codepages' (http://www.autohotkey.com/forum/topic17343.html),
and got my goal as follows.

//-----
RegRead, filename_hex, HKEY_CURRENT_USER, ...

VarSetCapacity(filename_bin, StrLen(filename_hex) // 2 + 2, 0)
HexToBin(filename_hex, filename_bin)
;DllCall("MessageBoxW", "uint", 0, "uint", &filename_bin, "uint", 0, "uint", 0)
Unicode2Ansi(filename_bin, filename_ansi)

loop, read, %filename_ansi%
...
fileappend, %text%, %filename_ansi%
...

-----//

Thank you.