Unity Script Reference:

static function TextArea(text: string, params options: GUILayoutOption[]): string;

static string TextArea(string text, params GUILayoutOption[] options);

static def TextArea(text as string, *options as GUILayoutOption[]) as string

static function TextArea(text: string, maxLength: int, params options: GUILayoutOption[]): string;

static string TextArea(string text, int maxLength, params GUILayoutOption[] options);

static def TextArea(text as string, maxLength as int, *options as GUILayoutOption[]) as string

static function TextArea(text: string, style: GUIStyle, params options: GUILayoutOption[]): string;

static string TextArea(string text, GUIStyle style, params GUILayoutOption[] options);

static def TextArea(text as string, style as GUIStyle, *options as GUILayoutOption[]) as string

static function TextArea(text: string, maxLength: int, style: GUIStyle, params options: GUILayoutOption[]): string;

static string TextArea(string text, int maxLength, GUIStyle style, params GUILayoutOption[] options);

static def TextArea(text as string, maxLength as int, style as GUIStyle, *options as GUILayoutOption[]) as string

Parameters

text	Text to edit. The return value of this function should be assigned back to the string as shown in the example.
maxLength	The maximum length of the string. If left out, the user can type for ever and ever.
style	The style to use. If left out, the `textField` 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
string The edited string.

Description

Make a multi-line text field where the user can edit a string.

Text area in the Game View.

	var stringToEdit : String = "Hello World\nI've got 2 lines...";	function OnGUI () {
		// Make a multiline text area that modifies stringToEdit.
		stringToEdit = GUILayout.TextArea (stringToEdit, 200);
	}

using UnityEngine;
using System.Collections;

public class Example : MonoBehaviour {
    public string stringToEdit = "Hello World\nI've got 2 lines...";
    void OnGUI() {
        stringToEdit = GUILayout.TextArea(stringToEdit, 200);
    }
}

import UnityEngine
import System.Collections

public class Example(MonoBehaviour):

	public stringToEdit as string = 'Hello World\nI\'ve got 2 lines...'

	def OnGUI() as void:
		stringToEdit = GUILayout.TextArea(stringToEdit, 200)