s2member php variable question about downloads.

[dj1arm]

Is there a variable to check if a file has been downloaded? I want to add a line through the text of a file that has already been downloaded by my subscribers.

<php if (s2member_check_file_downloaded("file") = true ) { echo "downloaded"; } else {echo "not downloaded";} ?>

[dj1arm]

bump, any help is appreciated, thanks.