Re: cursor doesn't show through transparent images in emacs 22, unlike emacs 21

[David Kastrup <dak@gnu.org>]

"Ken Manheimer" <ken.manheimer@gmail.com> writes:

> On 8/28/06, Kim F. Storm <storm@cua.dk> wrote:
>> Juri Linkov <juri@jurta.org> writes:
>>
>> > E.g. try to put the box cursor on this image:
>> >
>> > (insert-image (create-image (make-string 8 0)
>> >                           'xbm t :width 8 :height 8
>> >                           :background "grey75"
>> >                           :foreground "black"
>> >                           :relief -2
>> >                           :margin 0
>> >                           :ascent 'center))
>> >
>> > The box cursor is not visible.
>>
>> But there is still a visible difference when the cursor is on the image.
>
> to which juri responded:
>
> < I see no visible difference.  Kim?
>
> i also see no visible difference when i do or don't put the cursor on
> the image - certainly no sign of the cursor, when it's there.  (was
> the corners heuristic defeated by this particular image?)

I don't think it is applied unless one uses the :heuristik-mask
property or its equivalent.

-- 
David Kastrup, Kriemhildstr. 15, 44793 Bochum