Re: OS X Preview -- wrong size
Re: OS X Preview -- wrong size
- Subject: Re: OS X Preview -- wrong size
- From: Sam Smith <email@hidden>
- Date: Thu, 24 Feb 2005 07:23:09 -0800
> Sam Smith wrote:
>>> On a Mac I think this is because OSX is broken, it returns 72DPI for
>>> the screen resolution, no matter what screen it is.
>
>> Where do you see that? What does 'returns' mean?
>
> The Graphic Device Structure returned by the
> DMGetFirstScreenDevice/DMGetNextScreenDevice
> functions always has a value of 72 in its hRes and vRes elements. This is
> using
> the older DisplayManager API.
>
> The newer Quartz services API doesn't even have a method of discovering
> the displays resolution, even though it has stuff like "RefreshRate"
> available.
>
> This is all rather frustrating when trying to figure out how wide to make
> a window so that it's big enough to seen by an instrument, and would lead
> to similar problems in trying to display a raster "actual size".
Awesome, I hope I never have to do that. I get it, your developing for OS X.
What's an "instrument"? and how can a raster be anything but actual size
it's physical; it defines everything else. When I say raster I mean from the
upper left corner to the lower right corner where the cathode ray is
striking the phosphors.
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