SSScrollView.h

//
//  SSScrollView.h
//

/*
 Get a delegate callback when the scroll view scrolls.
 */

#import <Cocoa/Cocoa.h>

@class SSScrollView;

@protocol SSScrollViewDelegate
-(void)scrollViewDidScroll:(SSScrollView *)scrollView;
@end

@interface SSScrollView : NSScrollView {
	IBOutlet id<SSScrollViewDelegate> delegate; 
}

@property (nonatomic,assign) id<SSScrollViewDelegate> delegate;

@end

SSScrollView.m

//
//  SSScrollView.m
//

#import "SSScrollView.h"

@implementation SSScrollView

@synthesize delegate;

- (void)reflectScrolledClipView:(NSClipView *)aClipView{
	[super reflectScrolledClipView:aClipView];
	if(delegate && [delegate respondsToSelector:@selector(scrollViewDidScroll:)]){
		[delegate scrollViewDidScroll:self];
	}
}

@end