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Improve documentation of selecting windows

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* doc/lispref/windows.texi (Basic Windows, Selecting Windows):
Clarify what selecting a window means for keyboard input, and that
input focus may need to be considered when selecting windows on
other frames.  See
http://lists.gnu.org/archive/html/emacs-devel/2017-12/msg00372.html
for more details.
This commit is contained in:
Eli Zaretskii 2017-12-22 12:18:12 +02:00
parent 861d110078
commit c3b6742b3f
1 changed files with 13 additions and 6 deletions
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19
doc/lispref/windows.texi
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@ -125,11 +125,13 @@ including for the case where @var{object} is a deleted window.
as @dfn{selected within the frame}. For the selected frame, that
window is called the @dfn{selected window}---the one in which most
editing takes place, and in which the cursor for selected windows
appears (@pxref{Cursor Parameters}). The selected window's buffer is
usually also the current buffer, except when @code{set-buffer} has
been used (@pxref{Current Buffer}). As for non-selected frames, the
window selected within the frame becomes the selected window if the
frame is ever selected. @xref{Selecting Windows}.
appears (@pxref{Cursor Parameters}). Keyboard input that inserts or
deletes text is also normally directed to this window. The selected
window's buffer is usually also the current buffer, except when
@code{set-buffer} has been used (@pxref{Current Buffer}). As for
non-selected frames, the window selected within the frame becomes the
selected window if the frame is ever selected. @xref{Selecting
Windows}.
@defun selected-window
This function returns the selected window (which is always a live
@ -1726,7 +1728,7 @@ windows.
@defun select-window window &optional norecord
This function makes @var{window} the selected window and the window
selected within its frame (@pxref{Basic Windows}) and selects that
selected within its frame (@pxref{Basic Windows}), and selects that
frame. It also makes @var{window}'s buffer (@pxref{Buffers and
Windows}) current and sets that buffer's value of @code{point} to the
value of @code{window-point} (@pxref{Window Point}) in @var{window}.
@ -1743,6 +1745,11 @@ next time. If @var{norecord} is non-@code{nil}, such updates are
usually not performed. If, however, @var{norecord} equals the special
symbol @code{mark-for-redisplay}, the additional actions mentioned above
are omitted but @var{window} will be nevertheless updated.
Note that sometimes selecting a window is not enough to show it, or
make its frame the top-most frame on display: you may also need to
raise the frame or make sure input focus is directed to that frame.
@xref{Input Focus}.
@end defun
@cindex select window hook