WordPress at a glance
action is not described

quick_edit_custom_box action-hook . WP 2.7.0

Fires once for each column in Quick Edit mode.

Usage

add_action( 'quick_edit_custom_box', 'action_function_name_1612', 10, 3 );
function action_function_name_1612( $column_name, $post_type, $string ){
	// action...
}
$column_name(string)
Name of the column to edit.
$post_type(string)
The post type slug, or current screen name if this is a taxonomy list table.
$string(string)
taxonomy The taxonomy name, if any.

Where the hook is called

WP_Posts_List_Table::inline_edit()
quick_edit_custom_box
WP_Terms_List_Table::inline_edit()
quick_edit_custom_box
wp-admin/includes/class-wp-posts-list-table.php 1757
do_action( 'quick_edit_custom_box', $column_name, $screen->post_type, '' );
wp-admin/includes/class-wp-terms-list-table.php 614
do_action( 'quick_edit_custom_box', $column_name, 'edit-tags', $this->screen->taxonomy );

Where the hook is used (in WP core)

Does not used.