• Open Menu Close Menu
  • Apple
  • Shopping Bag
  • Apple
  • Mac
  • iPad
  • iPhone
  • Watch
  • TV
  • Music
  • Support
  • Search apple.com
  • Shopping Bag

Lists

Open Menu Close Menu
  • Terms and Conditions
  • Lists hosted on this site
  • Email the Postmaster
  • Tips for posting to public mailing lists
Re: Newb: KATI Sample Code - What's This Called?
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

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

Attachment: smime.p7s
Description: S/MIME cryptographic signature

_______________________________________________

Cocoa-dev mailing list (email@hidden)

Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com

Help/Unsubscribe/Update your Subscription:

This email sent to email@hidden

References: 
 >Newb: KATI Sample Code - What's This Called? (From: Brad Gibbs <email@hidden>)

  • Prev by Date: Newb: KATI Sample Code - What's This Called?
  • Next by Date: Re: Newb: KATI Sample Code - What's This Called?
  • Previous by thread: Newb: KATI Sample Code - What's This Called?
  • Next by thread: Re: Newb: KATI Sample Code - What's This Called?
  • Index(es):
    • Date
    • Thread