Hi, I'm using Magnification API to capture screenshoot, and I have some problems.
When I set up my magnifier window rect same as Secondary Monitor rect (such (1920,0,3840,1080)) , I can't get rgb data from MagImageScalingCallback.
Actually , MagImageScalingCallback can work normally on the primary monitor which rect is (0,0,1920,1080).
I can't find any doc to introduce how MagImageScalingCallback working on.
Can anybody tell me how to get rgb data from Secondary Monitor with Magnification API?
ps: my magnifier host window is showed as hidden.