Re: Second try: Setting text in NSTextView
Re: Second try: Setting text in NSTextView
- Subject: Re: Second try: Setting text in NSTextView
- From: Alex Rice <email@hidden>
- Date: Wed, 8 Jan 2003 21:00:03 -0700
On Wednesday, January 8, 2003, at 03:02 PM, Michael Fenske wrote:
Hmm, nobody can explain this:
Ok, I set text in a NSTextView this way:
[textView setString:@"new text"];
No problem. But can someone explain me, why this
[[textView textStorage] setText:@"new text"];
works, too? I get a waring if I compile that (as I expected)
but it really works. So, I'm curious to know why.
Just magic?
I don't see setText: in the API for NSTextStorage or any of it's
superclasses, although I could be overlooking it. Is that why you are
puzzled?
This is a total guess: if you could to look in the implementation
source code of NSTextStorage you might see a private interface like
this:
@interface NSTextStorage (privateOrDeprecatedInterface)
-(void) setText: (NSString *) s;
@end
So NSTextStorage objects would respond to that message even though it's
not in the headers the API anywhere.
I don't know much about the Obj-C runtime, but I am sure there are ways
to use the debugger or the Obj-C runtime itself to find out exactly
where that setText: is implemented.
But you should stick with public interfaces like the ones offered by
NSTextView. NSTextStorage is a "semiconcrete subclass of
NSMutableAttributedString". That makes it sound like it's not for
general use.
Alex Rice <email@hidden> | Mindlube Software |
http://mindlube.com
what a waste of thumbs that are opposable
to make machines that are disposable Ani DiFranco
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