edd_get_checkout_uri()
Function: Get the URL of the Checkout page
Source: includes/checkout/functions.php:118
edd_before_download_content()
Function: Before Download Content
Source: includes/template-functions.php:445
edd_after_download_content()
Function: After Download Content
Source: includes/template-functions.php:470
edd_is_payment_complete()
Function: Checks whether a payment has been marked as complete.
Source: includes/payments/functions.php:801