GUILayout.ExpandWidth

static function ExpandWidth (expand : boolean) : GUILayoutOption

Description

Option passed to a control to allow or disallow horizontal expansion.

JavaScript
function OnGUI () {
GUILayout.BeginVertical();
GUILayout.Button("Short Button", GUILayout.ExpandWidth(false));
GUILayout.Button("Very very long Button");
GUILayout.EndVertical();
}