Screen DPI

[David Burgun]

Hi,

I guess you could provide a Calibration function. Display a line of  
Size N Pixels and then have the user put a ruler to it and enter the  
size. Some screens vary in their horizontal and vertical DPIs, so you  
may want to display two lines.

You could perhaps build up a database of DPI for screens.

Just a thought.

All the Best
Dave

On 15 Feb 2006, at 00:04, simplsol at aol.com wrote:

> Peter,
> Long ago all Macs used 72 DPI for screen resolution. Today it is  
> more like 90 DPI but can be more or less. Flat panels may be over  
> 120 DPI. And resolutions are bound to go higher as everyone tries  
> to accommodate pictures and movies.
> More madness: most 17" screens and most 19" screens have the same  
> resolution - so the DPI varies significantly depending on the  
> screen where it is viewed.
> I would just design the at print resolution, 72 DPI (3" x 5" = 216  
> x 360).
> Paul Looney
>
> -----Original Message-----
> From: Peter T. Evensen <pevensen at siboneylg.com>
> To: use-revolution-lists.runrev.com <use-revolution at lists.runrev.com>
> Sent: Tue, 14 Feb 2006 16:52:08 -0600
> Subject: Screen DPI
>
>    What is the screen DPI. I know on Mac, it is usually 72. I'm  
> wanting to create a pseudo-WYSIWYG card editor that lets you  
> specify a size, like 3 x 5, and it displays an appropriately sized  
> card for one to place text on. 72 on Windows seems a bit small. I  
> was just wondering if anyone had a rule of thumb they used.
>
> Thanks!
>
> Peter T. Evensen
> http://www.PetersRoadToHealth.com
> 314-629-5248 or 888-628-4588
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