title: How to connect Interface Builder elements to Xcode variables?
body: <p>I am extremely new to iPhone development and am trying to make a Tab Bar Application in Xcode. </p>
  
  <p>My understanding is that it should work like this: </p>
  
  <ol>
  <li>Create Tab Bar Application</li>
  <li>Add variables to view (ie FirstViewController.h) </li>
  <li>Add element in Instance Builder</li>
  <li>Draw line from New Referencing Outlet to File's Owner, and the
  variable should pop up.</li>
  </ol>
  
  <p>The last step is where I have a problem, when I make a line to File's Owner the only thing that shows up is 'view'. None of my variables show up there. Any thoughts?</p>
  
  <p>Specifically, I'm trying to make a slider and a label that shows the slider's value on change. I know that to do this I will need a slider, label, and function to handle the ValueChanged event. I can create the variables and UI elements, but I can't seem to link them.</p>