woocommerce_order_cancelled_notice filter-hook . WC 1.0

Usage

add_filter( 'woocommerce_order_cancelled_notice', 'filter_function_name_779' );
function filter_function_name_779( $__ ){
	// filter...

	return $__;
}

$__

-

Where the hook is called

wc_add_notice( apply_filters( 'woocommerce_order_cancelled_notice', __( 'Your order was cancelled.', 'woocommerce' ) ), apply_filters( 'woocommerce_order_cancelled_notice_type', 'notice' ) );

Where in WP core the hook is used WooCommerce