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bug#7296: display-pixel-height not enough

From: Jan Djärv
Subject: bug#7296: display-pixel-height not enough
Date: Sun, 31 Oct 2010 11:51:08 +0100
User-agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; sv-SE; rv: Gecko/20101004 Thunderbird/3.1.5

Lennart Borgman skrev 2010-10-30 20.59:
On Sat, Oct 30, 2010 at 8:30 PM, Jan Djärv<address@hidden>  wrote:

Emacs should refrain from trying to maximize frames itself, because it is
not so simple as you state to just replace one height with another.

I never said something about using those values for maximizing a frame. You
simply do not do it that way on w32.

Hmm, what was this about then:
"Every function that tries to maximize just height will do it".

I know that W32 has some mechanism to maximize a window without fiddling
with height and width. You should check if there is a similar way to
maximize just height by asking the system to do it.

I told how to do this earlier in this thread. Or did not that message reach

Actually you did not. You showed how to get display pixel sizes. More is needed to correctly calculate the Emacs frame dimensions. One of the advantage of letting the window manager do it is that it knows about multiple displays. It seems that on w32 you have to figure out this yourself. I guess the lowlevel API functions can be used so that fullwidth and fullheight works on w32. That is so much better than letting lisp code calculate frame sizes.

It is why Emacs only does maximizing and fullscreen by delegering it to
the window manager in X.

Yes, it should do it the same way on w32, but you can not do it for just
height or just width on w32. (But you can set height (or width) to the same
value as it is with a maximized window.)

        Jan D.

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