[Javascript] Strange problem with getting a <table> tag's .offsetHeight property.

[Nick Fitzsimons]

On 3 Oct 2006, at 11:39, Matt Barton wrote:

> This works fine for all of my users, apart from a couple of new  
> laptops that use widescreen displays, and where the users have a  
> larger than normal DPI setting on their displays.  In these cases  
> the offsetHeight property is returning a value a good deal smaller  
> than it should be.
>
> Two different systems, running the same OS (WinXP, SP2), the same  
> browser (IE6), the same DPI (133), one with a widescreen display,  
> and one with a regular display, return different values for  
> offsetHeight when calculating the height of identical tables.  The  
> only difference I can see between the systems is the widescreen- 
> ness of the monitor.
>
> If the user with the widescreen laptop changes his DPI to the  
> standard 96, it behaves normally, returning values consistent with  
> the regular systems.
>

Not sure if this will help (some examples of the values you are  
seeing would be helpful, or even better a link to a test page hosted  
externally) but IE has a non-standard window.screen property, which  
contains information about the DPI of the display. These may allow  
you to calculate the actual value from the returned value. Have a  
look at <http://msdn.microsoft.com/workshop/author/dhtml/reference/ 
objects/obj_screen.asp > and the deviceXDPI, deviceYDPI, logicalXDPI  
and logicalYDPI properties.

HTH,

Nick.
-- 
Nick Fitzsimons
http://www.nickfitz.co.uk/