September 2002
Intermediate to advanced
1272 pages
31h 12m
English
Content preview from Cocoa® Programming
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Context-Sensitive Help (NSHelpManager)
A quick perusal of the Cocoa reference material, or the API header files, uncovers a final Help related API, the NSHelpManager class. From the class’s interface, it might seem that the class manages contextual help.
Historically, under Openstep, the user could hold down the Help key (or the F1 key or the Ctrl-Alt keys) to change the cursor into a question mark. The user could then click a user interface object to open a small help window briefly describing the purpose of that control. The window would disappear when the user subsequently clicked anywhere in the application.
Although the API remains, this functionality has been removed in Mac OS X. In the current implementation of Cocoa, the NSHelpManager ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.