(Mouse Position): Document mouse-position-function.

(Display Feature Testing): Document display-images-p.
(Window Frame Parameters): Document the cursor-type variable.

diff --git a/lispref/frames.texi b/lispref/frames.texi
index 94eff50384dca5dcc41cec69ddca0159eb2d1d94..3a769695f49991932ac1151a06630fa840f10d1a 100644 (file)
--- a/lispref/frames.texi
+++ b/lispref/frames.texi
@@ -491,6 +491,7 @@ This parameter describes the range of possible colors that can be used
 in this frame.  Its value is @code{color}, @code{grayscale} or
 @code{mono}.
 
+@vindex cursor-type
 @item cursor-type
 The way to display the cursor.  The legitimate values are @code{bar},
 @code{box}, and @code{(bar . @var{width})}.  The symbol @code{box}
@@ -499,6 +500,11 @@ that is the default.  The symbol @code{bar} specifies a vertical bar
 between characters as the cursor.  @code{(bar . @var{width})} specifies
 a bar @var{width} pixels wide.
 
+The buffer-local variable @code{cursor-type} overrides the value of
+the @code{cursor-type} frame parameter, and can in addition have
+values @code{t} (use the cursor specified for the frame) and
+@code{nil} (don't display a cursor).
+
 @item border-width
 The width in pixels of the window border.
 
@@ -1141,6 +1147,13 @@ and @var{y} are integers giving the position in characters relative to
 the top left corner of the inside of @var{frame}.
 @end defun
 
+@defvar mouse-position-function
+If non-nil, the value of this variable is a function applied to the
+normal result of @code{mouse-position}.  This abnormal hook exists for
+the benefit of packages like XTerm-mouse which need to do mouse
+handling at the Lisp level.
+@end defvar
+
 @defun set-mouse-position frame x y
 This function @dfn{warps the mouse} to position @var{x}, @var{y} in
 frame @var{frame}.  The arguments @var{x} and @var{y} are integers,
@@ -1648,6 +1661,13 @@ Windowed displays normally support selections, but they may also be
 supported in some other cases.
 @end defun
 
+@defun display-images-p &optional display
+This function returns @code{t} if @var{display} can display images.
+Windowed displays normally can display images, but some systems can
+lack the necessary support for that.  If images aren't supported, the
+tool bar cannot be displayed.
+@end defun
+
 @defun display-screens &optional display
 @tindex display-screens
 This function returns the number of screens associated with the display.