wordpress - Hide admin menu items and restrict access based on Role -

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i know way show/hide menu items in admin based on user roles, can type address , access specific menu. wondering if there way restrict well.

for moment i'm using code:

add_action( 'admin_init', 'my_remove_menu_pages' );  function my_remove_menu_pages() {     // if user not have access publish posts     if(!current_user_can('add_users')) {         // remove "tools" menu         remove_menu_page('tools.php');     } }

how going other way:

http://codex.wordpress.org/function_reference/add_role


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