sidebar_admin_page action-hook . WP 2.2.0

Fires after the available widgets and sidebars have loaded, before the admin footer.

Usage

add_action( 'sidebar_admin_page', 'action_function_name_6564' );
function action_function_name_6564(){
	// action...
}

Where the hook is called

do_action( 'sidebar_admin_page' );

Where the hook is used (in WP core)