May 2003
Intermediate to advanced
566 pages
27h 29m
English
Content preview from Cocoa in a Nutshell
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Name
NSValidatedUserInterfaceItem — Mac OS X 10.0
Synopsis
Custom interface control objects may adopt this protocol to partake
in the Application Kit’s automated validation
mechanism. User interface validation works by having user interface
items, such as buttons or text fields, query the targets of their
action about whether or not they should be enabled. This protocol is
closely related to the
NSUserInterfaceItemValidations protocol, which
declares the method validateUserInterfaceItem: for
target objects to implement.
@protocol NSValidatedUserInterfaceItem
|
// Instance Methods
|
- (SEL)action;
|
- (int)tag;
|
@end |
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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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