How to test whether lines of text are greater than the window height

问题

I'd like to test, please, whether the lines of text in a no-file visiting buffer are greater than the window height -- if not, then

(set-window-scroll-bars (get-buffer-window "*Org Agenda*" (selected-frame)) 0 nil)

回答1:

You can test with this:

(> (count-lines (point-min)
                (point-max))
   (window-height))

回答2:

Comparing count-lines with window-height works in some cases but doesn't account for line-wrapping, images, and variable-sized fonts. Another approch is to check if window-end is before point-max.

来源：https://stackoverflow.com/questions/20923655/how-to-test-whether-lines-of-text-are-greater-than-the-window-height