Hi Guys,

I've got a simple question but it has got me confounded. The code below gets a UNDEFINED error for UIControlTouchUpInside. What do I need to include or import? If I comment out the line, it works. So that means forState:UIControlStateNormal is defined. I'm new so hope you can help.

                UIButton * button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
                [button setTitle:@"Accept?" forState:UIControlStateNormal];

                [button addTarget:self action:@selector(acceptTapped) forControlEvents:UIControlTouchUpInside];

                button.frame = CGRectMake(225.0, 145.0, 80.0, 30.0);
                [self.view addSubview:button];