Document automatic adjustment of process' logical window dimensions

* doc/lispref/processes.texi (Process Buffers): Document
'set-process-window-size' and
'window-adjust-process-window-size-function'.

* etc/NEWS: Mention the new functionality and variable.

* src/process.c (Fset_process_window_size): Improve the doc string.

1 files changed, 8 insertions, 0 deletions

diff --git a/etc/NEWS b/etc/NEWS
index cfda333db23..785d14bf2ff 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -1588,6 +1588,14 @@ process filter, sentinel, etc., through keyword arguments (similar to
 'make-network-process').
 
 +++
+** Subprocesses are automatically told about changes in window dimensions
+The new option 'window-adjust-process-window-size-function' controls
+how subprocesses are told to adapt their logical window sizes to
+changes in the Emacs window configuration.  Its default value calls
+'set-process-window-size' with the smallest dimensions of all the
+windows that display the subprocess's buffer.
+
++++
 ** A new function 'directory-files-recursively' returns all matching
 files (recursively) under a directory.