Expand section about Windows system caret changes.

diff --git a/etc/NEWS b/etc/NEWS
index e8b5c8a5f0818c305ede8077acbe3ac41292fa6d..50f8c2bb86878db701e898a1a2c0e2bd7b4189ed 100644 (file)
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -3716,8 +3716,12 @@ irrespective of geometry or background setting on the Windows registry.
 ---
 ** On MS Windows, the "system caret" now follows the cursor.
 
-This enables Emacs to work better with programs that need to track
-the cursor, for example screen magnifiers and text to speech programs.
+This enables Emacs to work better with programs that need to track the
+cursor, for example screen magnifiers and text to speech programs.
+When such a program is in use, the system caret is made visible
+instead of Emacs drawing its own cursor. This seems to be required by
+some programs. The new variable w32-use-visible-system-caret allows
+the caret visibility to be manually toggled.
 
 ---
 ** Tooltips now work on MS Windows.