[wp-hackers] trying to understand the Admin API ... changing default values for visible Screen Options

[andré renaut]

As far as i understand,

you want to hide some dashboard widgets by default.

The dashboard widgets are defined in wp-admin/includes/dashboard.php

so if you want to hide some of the widgets even in the "Screen options", you
will need to hack this file.

Otherwise, the "Screen options" (Show on/off) are stored in the db for each
admin user : see table usermeta column meta_key = metaboxhidden_dashboard