On May 22, 2008, at 10:05 AM, john darnell wrote:
Okay, this is a really basic question, but I need some help figuring
out
what the code wants.
In the documentation for NSTableView, I am told that I must
implement as
part of a datasource the following function:
- (id) tableView:(NSTableView *) aTableView
objectValueForTableColumn: (NSTableColumn *) aTableColumn
row: (int) row
{
/* some code here */
return id;
}
The question is, what does the code want me returning as an id?
I tried to do a search in Cocoa Help on id and as you might imagine, I
got lots and lots of hits, none of which looked anywhere near what I
wanted for an explanation of what id is. So what is the framework
expecting me to return?
An (id) is simply a reference to some object; could be any object of
any class.
The above method wants you to return an object that contains whatever
value you want rendered in a particular row of a particular column of
that particular table.
The id type is equivalent to a (void*) type in C, but with the
additional ability to be the target of method calls.
b.bum
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