On 18 Aug 2013, at 15:56, Gerriet M. Denkmann <gerr...@mdenkmann.de> wrote:
> > On 18 Aug 2013, at 20:09, Tom Davie <tom.da...@gmail.com> wrote: > >> >> On 18 Aug 2013, at 15:03, Gerriet M. Denkmann <gerr...@mdenkmann.de> wrote: >> >>> I just noticed that the program I use to create Png files creates files >>> with twice the number of pixels in each dimension. >>> Obviously because since I last used it, I have switched to a Retina Mac >>> Book. >>> >>> Ok, so I have to fix this program. >> >> The correct way to fix this problem is to create an image via >> CGContextCreate and CGContextCreateImage. When doing this you specify pixel >> rather than point dimensions, and do not have the issue you’re experiencing. >> You detect a retina device by testing scaleFactor as you suggested, it’s >> just unnecessary here. > > I just asked Xcode about CGContextCreate and it told me that there is > absolutely no information available. > Could anybody help me with some link to some documentation? Uhh sorry, my bad, I meant CG*Bitmap*ContextCreate… http://developer.apple.com/library/ios/documentation/graphicsimaging/Reference/CGBitmapContext/Reference/reference.html Tom Davie _______________________________________________ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
