Is there a way to know when mouse is 'hovering' over a Toggle?

Questions & Answers
1

I need to do something when the mouse hovers over a button, particularly a Toggle. Is there an event I can implement or something? Unity 4.6+

3

Yep, Add Component → EventTrigger

Then add an event for PointerEnter and PointerExit.

Now you haven’t said what you want to do but if script based write the script with a public function for each event.

Drag that script onto a gameObject e.g. The toggle. Drag the toggle onto the event slots and from the dropdown select your script → the relevant function.

2

If you need to know when the mouse hovers over a specific button you can test if the rect used to create the button contains the object.

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour {
    public Texture btnTexture;
    Rect rectGUI;
    Rect rectUpdate;
    void Start() {
        rectGUI=new Rect(0, 0, 100, 100);
        // unity draws GUI from top right but mousePosition is from the bottom left
        rectUpdate=new Rect(rectGUI.x, Screen.height+rectGUI.x-rectGUI.height, rectGUI.width, rectGUI.height);
    }
    void Update() {
        if(rectUpdate.Contains(Input.mousePosition)) {
            Debug.Log("Scrolled over button");
        }
    }
    void OnGUI() {
        if(GUI.Button(rectGUI, btnTexture)) {
            Debug.Log("Clicked the Button");
        }
    }
}