Question

I would like do disable following mapping when I open quickfix window.

map <F5> :ZoomWin<cr>

Answer 1

Did you mean quickfix? If so, there are three ways:

1. Use <expr> mappings:

   nnoremap <expr> <F5> (&buftype is# "quickfix" ? "" : ":\<C-u>ZoomWin\n")
   

2. Use BufEnter event to set/restore mapping:

   augroup F5Map
       autocmd! BufEnter * :if &buftype is# 'quickfix' | nunmap <F5> | else | nnoremap <F5> :<C-u>ZoomWin<CR> | endif
   augroup END
   

3. Create mapping locally only for buffers where it is needed:

   augroup F5Map
       autocmd! BufEnter * :if &buftype isnot# 'quickfix' && empty(maparg('<F5>')) | nnoremap <buffer> <F5> :<C-u>ZoomWin<CR> | endif
   augroup END
   

Update: to disable mapping when any of the opened windows contains quickfix buffer use the following:

nnoremap <expr> <F5> (&buftype is# "quickfix" || empty(filter(tabpagebuflist(), 'getbufvar(v:val, "&buftype") is# "quickfix"')) ? ":\<C-u>ZoomWin\n" : "")