Forums → Creating a Compelling User Interface with Core Animation →

 
Jul 19, 2008 1:55am
Generic-user-small michael pren... 1 post

CGContextRef context = CGBitmapContextCreate(NULL, rect.size.width, rect.size.height,8, 4, colorSpace, kCGImageAlphaPremultipliedFirst);

Hi Bill,

This line wasn’t visible on the screen in your first video. can you explain the logic behind calculating row bytes? In the online examples I’ve located different algorithms seem to be used.

Thanks! Hmm, maybe the code is available, I’ll check…

Michael Prenez-Isbell

1 post, 1 voice