WordPress at Your Fingertips
action is not described

woocommerce_proceed_to_checkout action-hook . WC 1.0

Usage

add_action( 'woocommerce_proceed_to_checkout', 'action_function_name_6099' );
function action_function_name_6099(){
	// action...
}

Where the hook is called

In file: /templates/cart/cart-totals.php
woocommerce_proceed_to_checkout
woocommerce/templates/cart/cart-totals.php 107
<?php do_action( 'woocommerce_proceed_to_checkout' ); ?>

Where in WP core the hook is used WooCommerce

woocommerce/includes/wc-template-hooks.php 240
add_action( 'woocommerce_proceed_to_checkout', 'wc_get_pay_buttons', 10 );
woocommerce/includes/wc-template-hooks.php 241
add_action( 'woocommerce_proceed_to_checkout', 'woocommerce_button_proceed_to_checkout', 20 );