patch 8.1.2266: position unknown for a mouse click in a popup window Commit: https://github.com/vim/vim/commit/f8b036bcae27014e4cbbdceec262b0a4c6dc2d9c Author: Bram Moolenaar <Bram@vim.org> Date: Wed Nov 6 21:09:17 2019 +0100 patch 8.1.2266: position unknown for a mouse click in a popup window Problem: Position unknown for a mouse click in a popup window. Solution: Set v:mouse_col and v:mouse_lnum. (closes https://github.com/vim/vim/issues/5171)

" gvimrc for test_gui_init.vim

if has('gui_athena') || has('gui_motif') || has('gui_gtk2') || has('gui_gtk3')
  set guiheadroom=0
  set guioptions+=p
endif