I have a form in a Mac app that needs to scroll. I have a scrollView embedded in a ViewController. I have the scrollView assigned with an identifier that links it to its own NSScrollView file. The constraints are set to the top, right, and left of the view controller, it also has the hight constraint set to the full height of the ViewController. 

Here is my code:

```
import Cocoa

class ScrollView: NSScrollView {

override func draw(_ dirtyRect: NSRect) {
    super.draw(dirtyRect)

    // Drawing code here.
    NSRect documentView.NSMakeSize(0, 0, 1058.width, 1232.height)
}

override func scrollWheel(with event: NSEvent) {
    switch event.phase {
    case NSEvent.Phase.began:
        Swift.print("Began")
//        case NSEvent.Phase.changed:
//            Swift.print("Changed")
    case NSEvent.Phase.ended:
        Swift.print("Ended")
    default:
        break
    }

    switch event.momentumPhase {
    case NSEvent.Phase.began:
        Swift.print("Momentum Began")
//        case NSEvent.Phase.changed:
//            Swift.print("Momentum Changed")
    case NSEvent.Phase.ended:
        Swift.print("Momentum Ended")
    default:
        break
    }
    super.scrollWheel(with: event)
}

```

I cant seem to get my app to scroll at all. I think I am not setting the frame correctly. What is the best way to do set the frame correctly? Am I coding the NSScrollView correctly?