How to grab the framebuffer What?

Hello everybody.

I want to grasp the timing of the framebuffer. (for iOS)

In terms of GLKit, it will be part of the " - ( void ) glkView: (GLKView * )view drawInRect: (CGRect)rect".

So, Even on the Corona, I want to access immediately before and after the screen is updated.

I believe that the above, the need to introduce the following modules…

https://github.com/kayac/Lobi/wiki/iOS-Implement-LobiRecSDK-GLKit#4

http://kayac.github.io/Lobi/iOS/LobiSDK/LobiReference/Classes/LobiRec.html

Please tell me someone.