Re: bug#5703: 23.1.92; `x-show-tip' and `tooltip-frame-parameters' do not respect `left' and `top'

[Eli Zaretskii <eliz@gnu.org>]

> Date: Wed, 31 Mar 2010 08:33:25 +0900
> From: YAMAMOTO Mitsuharu <mituharu@math.s.chiba-u.ac.jp>
> Cc: Chong Yidong <cyd@stupidchicken.com>, emacs-devel@gnu.org,
> 	5703@debbugs.gnu.org, jasonr@gnu.org
> 
> > I see almost identical code in xfns.c versions of these functions,
> > so I'd be interested to hear how come the X version does not suffer
> > from the same problem.  That's because the patch below, although it
> > does the job, feels a bit kludgey, and I wonder if there a cleaner
> > way.
> 
> Because x_create_tip_frame in xfns.c makes a copy of `parms'?

Right, I missed that.  Thanks.

So I committed to the emacs-23 branch the following patch which fixes
the bug:

  === modified file 'src/ChangeLog'
  --- src/ChangeLog	2010-03-31 04:00:23 +0000
  +++ src/ChangeLog	2010-03-31 09:08:40 +0000
  @@ -1,3 +1,8 @@
  +2010-03-31  Eli Zaretskii  <eliz@gnu.org>
  +
  +	* w32fns.c (x_create_tip_frame): Copy `parms' before we modify it
  +	in this function.  (Bug#5703)
  +
   2010-03-31  Chong Yidong  <cyd@stupidchicken.com>

	  * nsterm.h: Fix last change.

  === modified file 'src/w32fns.c'
  --- src/w32fns.c	2010-01-13 08:35:10 +0000
  +++ src/w32fns.c	2010-03-31 09:08:40 +0000
  @@ -5427,6 +5427,10 @@ x_create_tip_frame (dpyinfo, parms, text

     kb = dpyinfo->terminal->kboard;

  +  /* The calls to x_get_arg remove elements from PARMS, so copy it to
  +     avoid destructive changes behind our caller's back.  */
  +  parms = Fcopy_alist (parms);
  +
     /* Get the name of the frame to use for resource lookup.  */
     name = x_get_arg (dpyinfo, parms, Qname, "name", "Name", RES_TYPE_STRING);
     if (!STRINGP (name)