September 2002
Intermediate to advanced
1272 pages
31h 12m
English
Content preview from Cocoa® Programming
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Color Wells
Color wells are the user interface that Cocoa provides for selecting and displaying a color. A color well displays a swatch representing the current color settings, and when clicked, the color panel is presented to the user. Most color wells are configured to show a border around them, which indicates if the color well is the active color well in the application, as shown in Figure 17.3. Color wells can be the target of a color dragging operation as well as an originator.
Figure 17.3. The possible NSColorWell visual states.
NSColorWell Class
NSColorWell, a subclass of NSControl, is the implementation class of the color well user ...
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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.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.