GNU bug report logs - #16736
Compiling a Lisp file causes display to flash off and on

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From: Eli Zaretskii <eliz <at> gnu.org>
To: martin rudalics <rudalics <at> gmx.at>
Cc: 16736 <at> debbugs.gnu.org, rgm <at> gnu.org
Subject: bug#16736: Compiling a Lisp file causes display to flash off and on
Date: Mon, 17 Feb 2014 18:50:40 +0200

> Date: Mon, 17 Feb 2014 17:23:25 +0100
> From: martin rudalics <rudalics <at> gmx.at>
> CC: Glenn Morris <rgm <at> gnu.org>, 16736 <at> debbugs.gnu.org
> 
>  > Looks like FRAME_PIXEL_HEIGHT includes the tool bar, and is thus 33
>  > pixels larger than we expect.  (What is f->tool_bar_height?)  But I
>  > cannot find the place where we assign any value to FRAME_PIXEL_HEIGHT,
>  > except in this very function, so I'm unsure where do those extra 33
>  > pixels come from.
> 
> It's from update_various_frame_slots in widget.c.  If you comment that
> out, the problem disappears.  But I don't know yet whether it's needed
> elsewhere ...

If you mean this:

  FRAME_PIXEL_HEIGHT (f) = ew->core.height + x->menubar_height;

then does it mean that menubar_height is 33 pixels?  Sounds too much
to me.

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