*** empty log message ***

1 files changed, 11 insertions, 4 deletions

diff --git a/etc/NEWS b/etc/NEWS
index 3a724c1480..a92f9ef045 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -2863,10 +2863,17 @@ that have a `help-echo' property.
 
 If the value of the `help-echo' property is a function, that function
 is called with three arguments WINDOW, OBJECT and POSITION.  WINDOW is
-the window in which the help was found, OBJECT is the buffer or string
-which had the `help-echo' property.  POSITION is the position within
-OBJECT under the mouse pointer.  The function should return a help
-string or nil for none.
+the window in which the help was found.
+
+If OBJECT is a buffer, POS is the position in the buffer where the
+`help-echo' text property was found.
+
+If OBJECT is an overlay, that overlay has a `help-echo' property, and
+POS is the position in the overlay's buffer under the mouse.
+
+If OBJECT is a string (an overlay string or a string displayed with
+the `display' property).  POS is the position in that string under the
+mouse.
 
 If the value of the `help-echo' property is neither a function nor a
 string, it is evaluated to obtain a help string.