Retina detection / backingScaleFactor

beginners
#1

Hi all,

I presume this should be due to Glut - but I can’t manage any way to detect if an OF application window is currently on a retina screen or not.

This line should return 2.0 on a retina screen but within OF it returns 1.0 :

  
CGFloat scale = [[NSScreen mainScreen] backingScaleFactor];

Unfortunately after various tries I can’t find any workaround to do this !

Any ideas ?

Thank in advance

#2

Hi all,

I want to detect if OF is currently running on retina.
All i found is this:
http://openframeworks.cc/documentation/ofxiOS/ofAppiOSWindow.html#!show_isRetinaSupportedOnDevice

but that is only for ofAppiOSWindow.
Is there a crossplatform method to detect that?

#3

I have a retina display and this code returns 1:

((ofAppGLFWWindow*)ofGetWindowPtr())->getPixelScreenCoordScale()

Shouldn’t it return 2?

#4

Have you added the NSHighResolutionCapable / YES key-value pair to your application’s Info.plist?

#5

Oh I had no idea about that… could we write that somewhere in documentation?
Thank you! it works now.