Chris McGrath questions

Chris McGrath answers

• UIButton shows tintColor only when being pressed, not in normal state
• Redirection playback output of avplayer item
• What does write() write if null terminator is already reached?
• How to monitor a process on OS X?
• Play video using AVPlayer
• AVFoundation capture UIImage
• Xcode 4.6 ARC Warning for Game Center Authentication
• Why does adding a small float to a large float just drop the small one?
• C wrapper for C++ library - what about inheritance?