Where is are the docs for the gradebook in moodle 1.8

Re: Where is are the docs for the gradebook in moodle 1.8

by Adam Lucarz -
Number of replies: 0
OK, forget my newbie question.

I just found that method in activites template lib.php file with some comment about grades:

function modulname_grades($modulenametaskid) {
return NULL;
}

I hope that is enough to get the grades handled.