Re: Newb: KATI Sample Code - What's This Called?
Re: Newb: KATI Sample Code - What's This Called?
- Subject: Re: Newb: KATI Sample Code - What's This Called?
- From: Bill Bumgarner <email@hidden>
- Date: Thu, 02 Oct 2008 14:47:25 -0700
On Oct 2, 2008, at 2:43 PM, Brad Gibbs wrote:
I'm working through the XSViewController example project from
KATIDev and I came across this line:
[(ColorView*)[self view] setBackgroundColor:[[NSColor greenColor]
colorWithAlphaComponent:.5]];
and realized I don't understand (ColorView*). It looks like it's
declaring a pointer to an object, but it's followed by a method.
Could somebody tell me the name of the function (ColorView*) is
performing so I can look it up and figure it out?
There is no function.
It is declaring that the result of the [self view] sub-expression
should be treated as a pointer to a ColorView by the compiler.
Nothing more, nothing less.
It is just a typecast to likely suppress a compiler warning because
whoever defined -view likely defined it as returning a reference to an
NSView, which does not respond to -setBackgroundColor:
b.bum
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