How to change the size of a GUI text (in a script)?

As far as I know, you can't change the size in code. However, you can adjust the size in the Inspector. You have to create a new style. Use this script:

 //Creates the new style. Name it whatever you want.
     public GUIStyle customGUI;
     
     void OnGUI() {
         //Draws the label. For the last argument, be sure to use the same name you used to create the style.
         GUI.Label(new Rect(10,10,500,300),"Hello, World!",customGUI);
     }

Once you have this added to a GameObject, look in the Inspector to adjust the settings. As for adjusting the label, the first two arguments of "Rect" is the x and y position of the text, and the next two are how large of an area the text is shown in.

Links:

http://docs.unity3d.com/Documentation/ScriptReference/GUIStyle.html http://docs.unity3d.com/Documentation/ScriptReference/GUI.Label.html

Make a GUIStyle, and change GUIStyle.fontSize.