Legacy Documentation: Version 4.6.2
Language: English
  • C#
  • JS
  • Boo

Script language

Select your preferred scripting language. All code snippets will be displayed in this language.

Event.alt

Suggest a change

Success!

Thank you for helping us improve the quality of Unity Documentation. Although we cannot accept all submissions, we do read each suggested change from our users and will make updates where applicable.

Close

Sumbission failed

For some reason your suggested change could not be submitted. Please try again in a few minutes. And thank you for taking the time to help us improve the quality of Unity Documentation.

Close

Cancel

public var alt: bool;
public bool alt;
public alt as bool

Description

Is Alt/Option key held down? (Read Only)

On Windows, this returns true if any Alt key is held down.
On Mac, this returns true if any Option key is held down.

	// Prints Option or Alt key was pressed depending the
	// platform this script is being run.
	function OnGUI() {
		var e : Event = Event.current;
		if (e.alt) {
			if(Application.platform == RuntimePlatform.OSXEditor) {
				Debug.Log("Option key was pressed");
			} else if( Application.platform == RuntimePlatform.WindowsEditor) {
				Debug.Log("Alt Key was pressed!");			
			}
		}
	}
using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour {
    void OnGUI() {
        Event e = Event.current;
        if (e.alt)
            if (Application.platform == RuntimePlatform.OSXEditor)
                Debug.Log("Option key was pressed");
            else
                if (Application.platform == RuntimePlatform.WindowsEditor)
                    Debug.Log("Alt Key was pressed!");
                
        
    }
}
import UnityEngine
import System.Collections

public class ExampleClass(MonoBehaviour):

	def OnGUI() as void:
		e as Event = Event.current
		if e.alt:
			if Application.platform == RuntimePlatform.OSXEditor:
				Debug.Log('Option key was pressed')
			elif Application.platform == RuntimePlatform.WindowsEditor:
				Debug.Log('Alt Key was pressed!')