Screen DPI

[Frank D. Engel, Jr.]

It may also be possible to get that information from the operating 
system, but it may require writing an external, and the information is 
not always 100% reliable.

On Feb 16, 2006, at 8:00 AM, David Burgun wrote:

> 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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-----------------------------------------------------------
Frank D. Engel, Jr.  <fde101 at fjrhome.net>

$ ln -s /usr/share/kjvbible /usr/manual
$ true | cat /usr/manual | grep "John 3:16"
John 3:16 For God so loved the world, that he gave his only begotten 
Son, that whosoever believeth in him should not perish, but have 
everlasting life.
$



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