The result is a |List|, where each item is the number of the buffer associated with each window in the current tab page. {arg} specifies the number of the tab page to be used. When omitted the current tab page is used. When {arg} is invalid the number zero is returned. To get a list of all buffers in all tabs use this: let buflist = [] for i in range(tabpagenr('$')) call extend(buflist, tabpagebuflist(i + 1)) endfor Note that a buffer may appear in more than one window. Can also be used as a |method|: GetTabpage()->tabpagebuflist()