September 2002
Intermediate to advanced
1272 pages
31h 12m
English
Content preview from Cocoa® Programming
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Implementing Drag and Drop
Drag and drop on Mac OS X is implemented using a few standard protocols and pasteboards. All drag and drop operations have three major elements, a source, a destination, and the data being dragged. The source and destination are usually NSView objects, but any NSWindow can also be a source or destination. The data being dragged is placed on a pasteboard. A standard pasteboard, NSDragPboard, has been set aside for drag and drop, but it is possible to use a private pasteboard instead if desired.
The term dragging session (or just drag session) is used to describe the whole process from the initiation of a drag at mouse-down until the mouse-up event is received. The source, destination, data, and all mouse-dragged events ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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.