Unity Script Reference:

static function Toolbar(selected: int, texts: string[], params options: GUILayoutOption[]): int;

static function Toolbar(selected: int, images: Texture[], params options: GUILayoutOption[]): int;

static function Toolbar(selected: int, content: GUIContent[], params options: GUILayoutOption[]): int;

static function Toolbar(selected: int, texts: string[], style: GUIStyle, params options: GUILayoutOption[]): int;

static function Toolbar(selected: int, images: Texture[], style: GUIStyle, params options: GUILayoutOption[]): int;

static function Toolbar(selected: int, contents: GUIContent[], style: GUIStyle, params options: GUILayoutOption[]): int;

Parameters

selected	The index of the selected button.
texts	An array of strings to show on the buttons.
images	An array of textures on the buttons.
contents	An array of text, image and tooltips for the button.
style	The style to use. If left out, the `button` style from the current GUISkin is used.
options	An optional list of layout options that specify extra layouting properties. Any values passed in here will override settings defined by the `style`. See Also: GUILayout.Width, GUILayout.Height, GUILayout.MinWidth, GUILayout.MaxWidth, GUILayout.MinHeight, GUILayout.MaxHeight, GUILayout.ExpandWidth, GUILayout.ExpandHeight.

Returns
int The index of the selected button.

Description

Make a toolbar.

Toolbar in the Game View.

	var toolbarInt : int = 0;
	var toolbarStrings : String[] = ["Toolbar1", "Toolbar2", "Toolbar3"];	function OnGUI () {
		toolbarInt = GUILayout.Toolbar (toolbarInt, toolbarStrings);
	}

using UnityEngine;
using System.Collections;

public class Example : MonoBehaviour {
    public int toolbarInt = 0;
    public string[] toolbarStrings = new string[] {"Toolbar1", "Toolbar2", "Toolbar3"};
    void OnGUI() {
        toolbarInt = GUILayout.Toolbar(toolbarInt, toolbarStrings);
    }
}

import UnityEngine
import System.Collections

public class Example(MonoBehaviour):

	public toolbarInt as int = 0

	public toolbarStrings as (string) = (of string: 'Toolbar1', 'Toolbar2', 'Toolbar3')

	def OnGUI() as void:
		toolbarInt = GUILayout.Toolbar(toolbarInt, toolbarStrings)