AutoHotkey diacrictics mappings not working correctly with Vim

Question

I've been using some mappings in Vim to avoid having to switch keyboard layouts to type in diacritics in my language (Croatian). However, now I wanted to move these mappings "up" so that they're available globally. I tried using AutoHotkey for this. Here are the mappings I wrote

#CommentFlag //
!;::Send {U+010D} // č
!'::Send {U+0107} // ć
!]::Send {U+0111} // đ
![::Send {U+0161} // š
!\::Send {U+017E} // ž

These work great in every application I've tried (browsers, notepad, MS Word), but don't work in Vim, which is pretty annoying as I do most of my typing there. More specifically, only 'š' and 'ž' work as expected, while both Alt-; and Alt-' give me a 'c' (instead of 'č' and 'ć'), and Alt-] gives a 'd' (instead of a 'đ').

I'm using AutoHotkey_L (though I had the same results with the "regular" AHK), Vim 7.3 (trying this in gVim; it doesn't work in the terminal version either (in a slightly different way) but I don't really care about that) on Win8.

I can give more info on the Vim version, but it's basically one of those windows binaries from vim.org. Things I guess might be important is that it has +multi_byte, and I've been using Unicode in it with no problems whatsoever.

Update: As per Ingo's suggestion below, I've tried using IfWinNotActive to not have the mappings present in Vim and continue to use my old ones there. Here's one example I've tried

SetTitleMatchMode 2
IfWinNotActive GVIM
{
    #CommentFlag //
    !;::Send {U+010D} // č
    !'::Send {U+0107} // ć
    !]::Send {U+0111} // đ
    ![::Send {U+0161} // š
    !\::Send {U+017E} // ž
}

I've also tried many other variations with the Vim window class (using ahk_class), with #IfWindowNotActive etc., but to no avail... The mappings are still there in Vim. Btw, the window title always contains the string "GVIM", and AHK sees that as I've confirmed with WinGetTitle.

Ingo Karkat Ingo Karkat · Accepted Answer · 2014-01-03T23:00:14

I don't have a solution, but a workaround: When I faced with the same issue, I decided to emulate Vim's digraphs globally (also using AutoHotkey), and just except Vim (and applications like Remote Desktop) from that feature (so that the full range can still be used there; my script only supports a subset). You can find my implementation here.

AutoHotkey diacrictics mappings not working correctly with Vim

3 Answers