WordPress Plugin to Customise Toolbar

wp_menu.php

<?php
/**
 * @package MyToolbar
 */
 
/*
Plugin Name: MyToolbar
Plugin URI: http://www.webniraj.com
Description: This plugin creates a custom toolbar
Version: 1.0
Author: Niraj Shah
Author URI: http://www.webniraj.com/wordpress/
*/

// function to run before menu is rendered
add_action( 'wp_before_admin_bar_render', 'preload_my_toolbar' );

// function to add items to toolbar
add_action( 'admin_bar_menu', 'my_toolbar' );

// forces toolbar to show to all users
add_filter( 'show_admin_bar', '__return_true' );

// placeholder function
function preload_my_toolbar() {
 global $wp_admin_bar;
}

// placeholder function
function my_toolbar() {
 global $wp_admin_bar;
}