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16.4 Displaying in Another Window
`C-x 4' is a prefix key for commands that select another window
(splitting the window if there is only one) and select a buffer in that
window. Different `C-x 4' commands have different ways of finding the
buffer to select.
`C-x 4 b BUFNAME <RET>'
Select buffer BUFNAME in another window. This runs
`C-x 4 f FILENAME <RET>'
Visit file FILENAME and select its buffer in another window. This
runs `find-file-other-window'. Note: Visiting.
`C-x 4 d DIRECTORY <RET>'
Select a Dired buffer for directory DIRECTORY in another window.
This runs `dired-other-window'. Note: Dired.
`C-x 4 m'
Start composing a mail message in another window. This runs
`mail-other-window', and its same-window version is `C-x m' (Note:
`C-x 4 .'
Find a tag in the current tag table in another window. This runs
`find-tag-other-window', the multiple-window variant of `M-.'
If the variable `display-buffer-function' is non-`nil', its value is
the function to call to handle `display-buffer'. It receives two
arguments, the buffer and a flag that if non-`nil' means that the
currently selected window is not acceptable. Commands such as
`switch-to-buffer-other-window' and `find-file-other-window' work using
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