using UnityEditor; [InitializeOnLoad] public static class EditorHelper { #region Constructors static EditorHelper() { EditorApplication.wantsToQuit += OnEditorWantsToQuit; } #endregion #region Methods private static bool OnEditorWantsToQuit() { return EditorUtility.DisplayDialog("Confirm Quit", "Are you sure you want to quit?", "Yes", "No"); } #endregion }