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This question follows this one.

I set some custom keymaps to ease window resizing, such as nmap <A-j> <C-w>-. However, they do not seem to work in any window. But, if I play the command manually, it works. What am I getting wrong?

NOTE: <C-j>, <C-k> are already taken to navigate. Here I want to resize, hence the different special key "Alt".

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    On some terminal the mapping to <Alt> could be problematic. What if you have: nnoremap <A-j> :echom 'alt-j'<Cr> and hit <Alt-j>. Do you have alt-j in the messages (i.e.: in the result of the :messages command)?
    – Vivian De Smedt
    Commented Jun 15 at 2:05
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    @VivianDeSmedt no, I don't have any message printed..
    – mEm
    Commented Jun 15 at 6:37
  • It probably means you have to do something to catch the <Alt> key. Could you tell us: what is the version of Vim you are using? What is your OS (Linux, maxOS, Windows)? What os the terminal you are using (Tmux, Kitty, cmd, ...)?
    – Vivian De Smedt
    Commented Jun 15 at 8:23
  • @VivianDeSmedt vim version: VIM - Vi IMproved 8.2 (2019 Dec 12, compiled May 03 2024 02:37:51) Included patches: 1-579, 1969, 580-1848, 4975, 5016, 5023, 5072, 2068, 1849-1854, 1857, 1855-1857, 1331, 1858, 1858-1859, 1873, 1860-1969, 1992, 1970-1992, 2010, 1993-2068, 2106, 2069-2106, 2108, 2107-2109, 2109-3995, 4563, 4646, 4774, 4895, 4899, 4901, 4919, 213, 1840, 1846-1847, 2110-2112, 2121, OS LInux Ubuntu 22.04.1, using its built-in terminal.
    – mEm
    Commented Jun 15 at 13:57
  • 1
    Maybe this answer could help you.
    – Vivian De Smedt
    Commented Jun 16 at 4:37

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