patch 8.2.0991: cannot get window type for autocmd and preview window Commit: https://github.com/vim/vim/commit/0fe937fd8616fcd24b1b1ef2ab9f1657615dd22c Author: Bram Moolenaar <Bram@vim.org> Date: Tue Jun 16 22:42:04 2020 +0200 patch 8.2.0991: cannot get window type for autocmd and preview window Problem: Cannot get window type for autocmd and preview window. Solution: Add types to win_gettype(). (Yegappan Lakshmanan, closes https://github.com/vim/vim/issues/6277)

" vimrc for test_gui_init.vim

" Note that this flag must be added in the .vimrc file, before switching on
" syntax or filetype recognition (when the |gvimrc| file is sourced the system
" menu has already been loaded; the ":syntax on" and ":filetype on" commands
" load the menu too).
set guioptions+=M