load-widgets.php action-hook . WP 2.8.0
Fires early when editing the widgets displayed in sidebars.
Usage
add_action( 'load-widgets.php', 'action_function_name_403' );
function action_function_name_403(){
// action...
}Where the hook is called
wp-admin/includes/ajax-actions.php 2163
do_action( 'load-widgets.php' );
wp-includes/class-wp-customize-widgets.php 336
do_action( 'load-widgets.php' );
wp-includes/class-wp-customize-widgets.php 1539
do_action( 'load-widgets.php' );
wp-admin/includes/ajax-actions.php 2272
do_action( 'load-widgets.php' );