GUILayoutUtility.GetLastRect

Returns

Rect The last used rectangle.

Description

Get the rectangle last used by GUILayout for a control.

Note that this only works during the Repaint event.

	function OnGUI() {
		GUILayout.Button( "My button" );
		if(Event.current.type == EventType.Repaint && 
		   GUILayoutUtility.GetLastRect().Contains(Event.current.mousePosition )) {
			GUILayout.Label( "Mouse over!" );
		} else {
			GUILayout.Label( "Mouse somewhere else" );
		}
	}

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour {
    void OnGUI() {
        GUILayout.Button("My button");
        if (Event.current.type == EventType.Repaint && GUILayoutUtility.GetLastRect().Contains(Event.current.mousePosition))
            GUILayout.Label("Mouse over!");
        else
            GUILayout.Label("Mouse somewhere else");
    }
}