window.screen.w idth on dual display systems

Safalra (Stephen Morley)

(Note: I'm not trying to do anything stupid based on the user's screen size
- I'm just curious.)
At work today I was looking at the visitor statistics for a client website,
and noticed that the recorded screen resolutions included results that
clearly referred to dual display systems - 2560 by 1024, for example. The
statistics package is obtaining this data from window.screen.w idth. I
wasn't aware of this behaviour of window.screen.w idth, so I tested it on my
dual display system in Internet Explorer 6 and 7 and the latest versions of
Firefox, Opera, and Safari. All returned 1680 by 1050, regardless of
whether the window was on one screen or stretched across two (a Google
search suggested stretching the window across two screens would lead to
window.screen.w idth reporting the combined width).
Does anyone know which browser-platform combinations report the total width
on dual display systems? I've temporarily set my own site to log screen
widths and heights and user-agent strings, but after several hours there
haven't been any double-width reports, so I though I'd ask here in case
anyone knew. Like I said, it's just for curiousity so you don't need to
worry about me doing anything stupid based on the user's screen size.
--
Safalra (Stephen Morley)

Sortable Tables In javascript:
http://www.safalra.com/web-design/ja...rtable-tables/

Oct 11 '07 #1

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6797

Thomas 'PointedEars' Lahn

Safalra (Stephen Morley) wrote:

At work today I was looking at the visitor statistics for a client website,
and noticed that the recorded screen resolutions included results that
clearly referred to dual display systems - 2560 by 1024, for example.

Not necessarily. Virtual desktops are not restricted to dual- or
multi-display use.
PointedEars

Oct 11 '07 #2

Safalra (Stephen Morley)

On Thu, 11 Oct 2007 22:58:57 +0200, Thomas 'PointedEars' Lahn wrote:

Safalra (Stephen Morley) wrote:
>At work today I was looking at the visitor statistics for a client website,
and noticed that the recorded screen resolutions included results that
clearly referred to dual display systems - 2560 by 1024, for example.

Not necessarily. Virtual desktops are not restricted to dual- or
multi-display use.

Ah Thomas, you always know what to say to make me feel stupid... :-) You're
right of course. It might probably also explain the screen resolutions with
crazy ratios - 640:427 and 126:95 for example.

--
Safalra (Stephen Morley)

Sortable Tables In javascript:
http://www.safalra.com/web-design/ja...rtable-tables/

Oct 12 '07 #3

Thomas 'PointedEars' Lahn

Safalra (Stephen Morley) wrote:

On Thu, 11 Oct 2007 22:58:57 +0200, Thomas 'PointedEars' Lahn wrote:
>Safalra (Stephen Morley) wrote:
>>At work today I was looking at the visitor statistics for a client website,
and noticed that the recorded screen resolutions included results that
clearly referred to dual display systems - 2560 by 1024, for example.
Not necessarily. Virtual desktops are not restricted to dual- or
multi-display use.

Ah Thomas, you always know what to say to make me feel stupid... :-)

Sorry :)

You're right of course. It might probably also explain the screen
resolutions with crazy ratios - 640:427 and 126:95 for example.

There is also the possibility that, whenever the window size or viewport
size was greater than the *assumed* display resolution, the window size or
viewport size was logged instead. A height of 427 would fit for the latter,
as that is about the height of my viewport in Firefox with a window size of
800x600 pixels.
Regards,

PointedEars
--
var bugRiddenCrashP ronePieceOfJunk = (
navigator.userA gent.indexOf('M SIE 5') != -1
&& navigator.userA gent.indexOf('M ac') != -1
) // Plone, register_functi on.js:16

Oct 12 '07 #4

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