Gerd K questions

Gerd K answers

• AVAsset tracks is empty
• Convert long NSString to NSNumber
• Changing Window's element visibility from a subclassed WebView
• kCTSuperscriptAttributeName is not working for using subscript and superscript
• NSMenuItem height?
• Frame for clip view will be different at runtime error in Xcode 5 and Objective-C
• Convert file path to file url[NSUrl]
• Insert bytes at front in NSMutableData