The tooltip of this element.

The tooltip associated with this content. Read GUItooltip to get the tooltip of the gui element the user is currently over.

	function OnGUI () {
		GUI.Button (Rect (0, 0, 100, 20), GUIContent ("A Button", "This is the tooltip"));
		// If the user hovers the mouse over the button, the global tooltip gets set
		GUI.Label (Rect (0, 40, 100, 40), GUI.tooltip);
	}

using UnityEngine;
using System.Collections;

public class Example : MonoBehaviour {
    void OnGUI() {
        GUI.Button(new Rect(0, 0, 100, 20), new GUIContent("A Button", "This is the tooltip"));
        GUI.Label(new Rect(0, 40, 100, 40), GUI.tooltip);
    }
}

import UnityEngine
import System.Collections

public class Example(MonoBehaviour):

	def OnGUI() as void:
		GUI.Button(Rect(0, 0, 100, 20), GUIContent('A Button', 'This is the tooltip'))
		GUI.Label(Rect(0, 40, 100, 40), GUI.tooltip)