Re: x-display-pixel-width/height inconsistency

["Jan Djärv" <jan.h.d@swipnet.se>]

Hello.

5 jul 2013 kl. 11:41 skrev Juanma Barranquero <lekktu@gmail.com>:

> On Fri, Jul 5, 2013 at 11:34 AM, Jan Djärv <jan.h.d@swipnet.se> wrote:
> 
>> W32 is the odd duck here, frame-parameter top in NS and X
>> refers to the outer edge of the window including caption height,
>> i.e. the real top of the frame.
> 
> Sorry, I don't understand. AFAIK, the `top' frame parameter in Windows
> also refers to the real top of the frame, but I fail to see the
> relationship between that fact and what I was discussing.

You said:

> So, IMO, the only thing that makes sense is to
> move/resize a frame while restoring when that frame is entirely
> outside the current viewing area. Or, perhaps, when the caption is
> (because in many/most/all? window managers, you can mouse-drag a
> window only from its caption).
> 
> Of course, there's no way to know the caption height (in pixels) from
> inside Emacs, I think, so in the end it's all an ugly heuristics: the
> top of the frame is some arbitrary number of pixels inside the viewing
> area. Or is there a better way?
> 

You don't need "some arbitrary number of pixels".  As I outlined before, if top/left is inside, put the frame there, otherwise put it at some default position.
Another possibility is that the display-monitor-attributes-list includes a list of all frame belonging to a particular monitor.  If that monitor is still available, restore the frame there, otherwise not.

	Jan D.