Document more Emacs 24.3 changes.

* frames.texi (Visibility of Frames): Document tty-top-frame.

* loading.texi (Autoload): Document autoloadp, autoload-do-load.

* symbols.texi (Symbol Plists): Document function-get.

1 files changed, 18 insertions, 5 deletions

diff --git a/doc/lispref/frames.texi b/doc/lispref/frames.texi
index 665b75048f3..f58d62675e5 100644
--- a/doc/lispref/frames.texi
+++ b/doc/lispref/frames.texi
@@ -1493,8 +1493,9 @@ This function returns the visibility status of frame @var{frame}.  The
 value is @code{t} if @var{frame} is visible, @code{nil} if it is
 invisible, and @code{icon} if it is iconified.
 
-On a text terminal, all frames are considered visible, whether they
-are currently being displayed or not.
+On a text terminal, all frames are considered ``visible'' for the
+purposes of this function, even though only one frame is displayed.
+@xref{Raising and Lowering}.
 @end defun
 
 @deffn Command iconify-frame &optional frame
@@ -1550,9 +1551,21 @@ If this is non-@code{nil}, activation of the minibuffer raises the frame
 that the minibuffer window is in.
 @end defopt
 
-You can also enable auto-raise (raising automatically when a frame is
-selected) or auto-lower (lowering automatically when it is deselected)
-for any frame using frame parameters.  @xref{Management Parameters}.
+  On window systems, you can also enable auto-raising (on frame
+selection) or auto-lowering (on frame deselection) using frame
+parameters.  @xref{Management Parameters}.
+
+@cindex top frame
+  The concept of raising and lowering frames also applies to text
+terminal frames.  On each text terminal, only the top frame is
+displayed at any one time.
+
+@defun tty-top-frame terminal
+This function returns the top frame on @var{terminal}.  @var{terminal}
+should be a terminal object, a frame (meaning that frame's terminal),
+or @code{nil} (meaning the selected frame's terminal).  If it does not
+refer to a text terminal, the return value is @code{nil}.
+@end defun
 
 @node Frame Configurations
 @section Frame Configurations