gvimrc.vim

inoremap <silent> <ESC> <ESC>:call system("ore_ime stop")<CR>

ore_ime

#!/bin/bash
set -e

case "$1" in
    start)
        xvkbd -text "\[Control]\[Shift]\[Insert]" > /dev/null 2>&1
        ;;
    stop)
        xvkbd -text "\[Control]\[Shift]\[Delete]" > /dev/null 2>&1
        ;;
    toggle)
        xvkbd -text "\[Control]\[space]" > /dev/null 2>&1
        ;;
    *)
        echo "${name} Didn't match anything"
esac