gistfile1.m

@interface MWViewController ()
{
    UIScrollView *scrollView;
    UIView *toHit;
}
@end

@implementation MWViewController

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Release any cached data, images, etc that aren't in use.
}

- (void)tap:(UITapGestureRecognizer *)tap
{
    CGPoint point = [tap locationInView:scrollView];
    
    id something = [scrollView hitTest:point withEvent:nil];
    
    if (something == toHit) 
    {
        NSLog(@"success");
    }
}

#pragma mark - View lifecycle

- (void)viewDidLoad
{
    [super viewDidLoad];
    scrollView = [[UIScrollView alloc] initWithFrame:self.view.frame];
    [self.view addSubview:scrollView];
    
    toHit = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 300, 300)];
    [scrollView addSubview:toHit];
    toHit.backgroundColor = [UIColor redColor];
    
    [scrollView addGestureRecognizer:[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tap:)]];
	// Do any additional setup after loading the view, typically from a nib.
}


@end