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, [EMAIL PROTECTED] 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 <[EMAIL PROTECTED]>
To: use-revolution-lists.runrev.com <[email protected]>
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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