How do I make a new top level menu in Wordpress?

I want to create a new Menu in the admin panel of Wordpress for my new plugin. Just like 'Tools', 'Users', 'Settings', I want a new item, 'My Plugin'. I'm aware of the function add_menu_page(), but how do I use开发者_高级运维 it?

What is the code for doing this?

For how-to on add_menu_page() follow this link. For most of the wordpress function you can use codex. Eg/

add_menu_page($page_title, $menu_title, $access_level, $file, $callback_function, $icon_url);

yes what Pragati Sureka said is true. it's the right way to do it. You just have to put it in functions.php in your theme file