Hi,

On 2008/03/19, at 12:16, Stefan Monnier wrote:
>>> Looks good.  Tho maybe I'd put the call to x_set_frame_alpha  
>>> directly
>>> inside x_update_cursor (and rename it to  
>>> x_update_cursor_and_opacity).
>>>
>>> I don't mind the use of "alpha" rather than "opacity", as long as  
>>> the
>>> docstrings are clear.  The patch needs to also update the manual.
>>> And could you describe the copyright status?
>
>> The frame parameter code and the x_set_frame_alpha function
>> were written by Ryo Yoshitake.  He is ready to sign.
>
> Could you send him the appended form (and Cc me along the way)?
>
Done.

>> The lower_limit variable and the x_set_alpha function originally  
>> come from
>> mw32fns.c (e.g. mw32_set_frame_alpha in l.1019-1078) in Meadow,
>> although they look differently because of my extensive modification.
>> http://www.meadowy.org/meadow/browser/trunk/src/mw32fns.c (slow  
>> connection)
>> I am contacting Mr. Horiguchi, the author of the relevant part.
>
> Copyright only applies to actual code, not ideas, so if the code was
> rewritten, copyright does not apply any more.
>
In order to make sure, I extracted
the relevant lines which I ported from Meadow to GNU Emacs.
Let me know if there are any problems.

Attached 1 - the original lines from mw32fns.c