uiviewcontroller - Pass data to view controller from subview iPhone -

Probably a simple question but I have not found a solution. I have several view controllers with some sliders when drag, Input number one label I also have to enter a simple popup keypad number in the same label. I have created a visual controller called the keypad and when I tap one button on the current view controller, I do this:

  - (IBAction) Call clip: (ID) sender {keypad * Keypad controller = [[Keypad Alloc] initWithNibName: @ "keypad" bundle: zero]; Self.keypadViewController = Keypad controller; [Self.view addSubview: keypadController.view]; [Keypad controller release];  

The keypad comes with a current view controller that appears in the background. When I tap the numbers on the keypad, I want the results to be shown instantly in the current view controller. I think what I'm trying to do, a visual controller sends its output to a second view controller.

Thanks for any help.