i suppose i could still try to do what i'm attempting by being slightly larger, but were your results on different screens drastically different in most cases?
On Wed, May 13, 2009 at 4:12 AM, Gerriet M. Denkmann <gerr...@mdenkmann.de> wrote: > > On 12 May 2009, at 16:33, Alastair Houghton <alast...@alastairs-place.net> > wrote: >> >> If, however, you really want the display to physically show a 5cm x >> 5cm block, you can obtain the screen's actual dimensions in >> millimeters from CGDisplayScreenSize() and then use those numbers in >> conjunction with the pixel dimensions to calculate a suitable transform. > > I just tried this on a white MacBook (1280 x 800 pixels). > I was told that my screen is 290 x 190 mm. > The I took a ruler and measured it and got: 286.208 x 178.88 (actually I > measured 286 x 179, but I doctored the numbers to make them look better and > produce square pixels 0.2236 mm wide). > > I tried this before on different screens and always got answers which were > wrong and very boldly rounded to some centimeter. > > So CGDisplayScreenSize does not return the actual screen size but the size > to be displayed in promotional brochures - as clearly indicated by the > function name (which is NOT CGActualScreenSize for a reason). > > Kind regards, > > Gerriet. > > _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
