Calling a scripts method at runtime

Questions & Answers
1

I’m tinkering about with some AR in unity. I need to call a method at run-time in order to create and register a virtual button and attach it to an instantiated object,

To do this I’ve created a script called “vbSpawn” that I was hoping would call the method and make it create a virtual button. This is what I’ve used:

using UnityEngine;
using System.Collections;

public class vbSpawn : MonoBehaviour {

	// Use this for initialization
	void Start () {
	
 ImageTargetBehaviour createScript = GetComponent< ImageTargetBehaviour >();
		 createScript.CreateVirtualButton(string vbName, Vector2 localScale, GameObject parent);
	}
		
	}

With it I am trying to activate this:

     // This methods adds the Virtual Button as a child of "immediateParent".
    // Returns null if "immediateParent" is not an Image Target or a child of an
    // Image Target.
    public VirtualButtonBehaviour CreateVirtualButton(string vbName,
                                                  Vector2 localScale,
                                                  GameObject immediateParent)
    {
        GameObject virtualButtonObject = new GameObject(vbName);
        VirtualButtonBehaviour newVBB =
            virtualButtonObject.AddComponent();

        GameObject rootParent = immediateParent.transform.root.gameObject;
        ImageTargetBehaviour parentImageTarget =
            rootParent.GetComponentInChildren();

        if (parentImageTarget == null)
        {
            Debug.LogError("Could not create Virtual Button. " +
                           "immediateParent\"immediateParent\" object is not " +
                           "an Image Target or a child of one.");
            GameObject.Destroy(virtualButtonObject);
            return null;
        }

        // Add Virtual Button to its parent game object
        virtualButtonObject.transform.parent = immediateParent.transform;

        // Set Virtual Button attributes
        newVBB.InitializeName(vbName);
        newVBB.transform.localScale = localScale;

        TrackerBehaviour tracker =
            (TrackerBehaviour)UnityEngine.Object.FindObjectOfType(
                                                    typeof(TrackerBehaviour));

        if ((tracker == null) || !tracker.RegisterVirtualButton(newVBB,
                                            this.TrackableName))
        {
            Debug.LogError("Could not register Virtual Button.");
            GameObject.Destroy(virtualButtonObject);
            return null;
        }
        else
        {
            Debug.Log("Registered Virtual Button successfully.");
        }

        // If we manually register the button it should be unregistered if the
        // Unity object is destroyed.
        newVBB.UnregisterOnDestroy = true;

        return newVBB;
    }

Any ideas as to how I can implement this correctly? Help / a slap around the head would be appreciated =)

2 
public class vbSpawn : MonoBehaviour
{
    private VirtualButtonBehaviour myButton;
    private void Start ()
    {
        ImageTargetBehaviour createScript = GetComponent<ImageTargetBehaviour>();
        myButton = createScript.CreateVirtualButton("btn1", new Vector2(5, 5), gameObject);
    }

    private void Update()
    {
        // do your stuff with "myButton"
    }
}