Regarding the delegate for NSTabView

Question

Hi all ,
I am developing a small application where I have have NSTabView .My each TabItem has a view in it i.e. DropBox derived from NSView.I want to drag and drop and perfom some task on the corresponding selected TabItem.
I have created an id delegate and set this as a delegate for an instance of MyController i.e(Control-Drag from instance of DropBox to instance of MyController).The problem I am facing is that the respondsToSelector method always returns NO.As a result if I select any TabItem it always returns zero(i.e the first tab item).Also it does not show any error while compiling.Following is my code:-
//DropBox.m
@interface NSObject ( MyObjectDelegateMethod)
-(int)getTerminal;
@end
@implementation DropBox
- (BOOL)performDragOperation: ( id <NSDraggingInfo>)sender
if (![delegate respondsToSelector:@selector(getTerminal)]){
NSLog( @"performDragOperation : Returning NO");
return NO;
switch([delegate getTerminal] )
case 1 : //task1
case2 : //task2
- (id) delegate;
NSLog( @"Returning the delegate for MyController.");
return delegate;
- (void)setDelegate: ( id)theDelegate;
NSLog( @"The delegate for MyController is set");
delegate = theDelegate;
NSLog(@"delegate:%@", delegate);
@end
//DropBox.h
#include"MyController.h"
@interface DropBox : NSView
id delegate;
- (id)delegate;
- (void)setDelegate: ( id)theDelegate;
@end
//MyController.m
-(int) getTerminal
return [myTab indexOfTabViewItem:[myTab selectedTabViewItem]];
//MyController.h
#import <Cocoa/Cocoa.h>
@interface MyController : NSObject
IBOutlet id myTab;
-(int) getTerminal;
@end
  Mac OS X (10.4.9)  

Answer 1

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