Thanks, that does exactly what I want. The naming of kCGDisplayShowDuplicateLowResolutionModes seems is very confusing and ambiguous to me, though.
Thanks for the help! Matthias Am 20.05.2014 um 00:32 schrieb Ken Thomases <k...@codeweavers.com>: > On May 20, 2014, at 1:59 AM, Matthias Dörfelt wrote: > >> AFAIK there is no way to find retina display modes with Quartz Display >> Services right now. Why is that? Is there any workaround or different API? >> Right now, if I change the Display Mode of my retina display >> programmatically, I have to cache the original retina display mode in order >> to return to it, as >> CGDisplayCopyAllDisplayModes won’t expose them to me. >> Are we still waiting for a proper public API to handle these things or am I >> fundamentally misunderstanding something here? > > It's not that you're misunderstanding, it's that the new capability has not > been documented well. It's only listed in the headers. > > In > /System/Library/Frameworks/CoreGraphics.framework/Versions/A/Headers/CGDirectDisplay.h > you'll find the declaration of kCGDisplayShowDuplicateLowResolutionModes. > That's a key that can be used in the options dictionary parameter of > CGDisplayCopyAllDisplayModes(). Use the value kCFBooleanTrue. > > There are also new functions to get the dimensions of a display mode in > pixels rather than points: CGDisplayModeGetPixelWidth() and > CGDisplayModeGetPixelHeight(). Without these, you may mistake a HiDPI > display mode as a normal one, since its dimensions will be reported in points. > > > For what it's worth, I found that the old, deprecated display mode APIs (e.g. > CGDisplayAvailableModes()) list all of the display modes with no special > flags or options. > > Regards, > Ken > > _______________________________________________ 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
