Re: bug of display-table & make-glyph-code

[martin rudalics]

> I must have lost too much context: I do not understand the
> above description.  Can someone spell it out in baby-steps for my poor
> excuse for a brain?

The OP explained it as follows:

> Split an emacs frame in two windows showing buffers A and B:
>
>    +-------------+
>    |             |
>    |      A      |
>    |             |
>    +-------------+
>    |             |
>    |      B      |
>    |             |
>    +-------------+
>
> While in the lower window, run
>
>     (set-window-dedicated-p (selected-window) t)
>
> Now, in the upper window, run
>
>     (display-buffer "C")
>
> In Emacs 21, this will be the result:
>
>    +-------------+
>    |      A      |
>    +-------------+
>    |      C      |
>    +-------------+
>    |             |
>    |      B      |
>    |             |
>    +-------------+
>
> In Emacs 22, this will be the result:
>
>    +-------------+
>    |             |
>    |      C      |
>    |             |
>    +-------------+
>    |             |
>    |      B      |
>    |             |
>    +-------------+
>
> In Emacs 22 with split-heigh-threshold=10, this will be the result:
>
>    +-------------+
>    |             |
>    |      A      |
>    |             |
>    +-------------+
>    |      B      |
>    +-------------+
>    |      C      |
>    +-------------+
>

What he apparently wants is window B always display the same buffer, stay
below all other windows, and not change its size.