WordPress at a glance
filter is not described

contextual_help_list filter-hook . WP 2.7.0

Deprecated in 3.3.0. It is no longer supported and can be removed in future releases. Use get_current_screen()->add_help_tab() or get_current_screen()->remove_help_tab() instead.

Deprecated: 3.3.0 Use get_current_screen()->add_help_tab() or
get_current_screen()->remove_help_tab() instead.

Filters the legacy contextual help list.

Usage

add_filter( 'contextual_help_list', 'filter_function_name_8301', 10, 2 );
function filter_function_name_8301( $old_compat_help, $this ){
	// filter...

	return $old_compat_help;
}
$old_compat_help(array)
Old contextual help.
$this(WP_Screen)
Current WP_Screen instance.

Where the hook is called

WP_Screen::render_screen_meta()
wp-admin/includes/class-wp-screen.php 747
self::$_old_compat_help = apply_filters( 'contextual_help_list', self::$_old_compat_help, $this );

Where the hook is used (in WP core)

Does not used.